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EMC® VMAX3™ FamilySite Planning Guide

VMAX 100K, VMAX 200K, VMAX 400K,with HYPERMAX OSREVISION 8.1

Copyright © 2014-2017 Dell Inc. or its subsidiaries. All rights reserved.

Published June 2017

Dell believes the information in this publication is accurate as of its publication date. The information is subject to change without notice.

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Published in the USA.

EMC CorporationHopkinton, Massachusetts 01748-91031-508-435-1000 In North America 1-866-464-7381www.EMC.com

2 Site Planning Guide VMAX 100K, VMAX 200K, VMAX 400K, with HYPERMAX OS

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7

Preface 9Revision history...........................................................................................12

Pre-planning tasks 15Before you begin......................................................................................... 16Tasks to review........................................................................................... 16

Delivery and transportation 19Delivery arrangements................................................................................20Pre-delivery considerations........................................................................ 20Moving up and down inclines......................................................................20Shipping and storage environmental requirements......................................21

Specifications 23Radio frequency interference..................................................................... 24

Recommended minimum distance from RF emitting device...........24Power consumption and heat dissipation....................................................25

Adaptive cooling............................................................................ 26Airflow........................................................................................................ 27Air volume, air quality, and temperature..................................................... 28

Air volume specifications............................................................... 28Temperature, altitude, and humidity ranges...................................28Temperature and humidity range recommendations...................... 28Air quality requirements.................................................................29

Shock and vibration....................................................................................30Sound power and sound pressure...............................................................30Hardware acclimation times........................................................................ 31Optical multimode cables............................................................................32

Open systems host and SRDF connectivity................................... 32

Data Center Safety and Remote Support 35Fire suppressant disclaimer........................................................................ 36Remote support..........................................................................................36

Physical weight and space 39Floor load-bearing capacity........................................................................ 40Raised floor requirements...........................................................................40Physical space and weight.......................................................................... 41

Position Bays 43

Figures

Tables

Chapter 1

Chapter 2

Chapter 3

Chapter 4

Chapter 5

Chapter 6

CONTENTS

Site Planning Guide VMAX 100K, VMAX 200K, VMAX 400K, with HYPERMAX OS 3

System bay layouts.................................................................................... 44Adjacent layouts, single-engine array............................................ 45Adjacent layouts, dual-engine array............................................... 46Dispersed layouts, single-engine array........................................... 47Dispersed layout, dual-engine array............................................... 48Adjacent and dispersed (mixed) layout ......................................... 49

Dimensions for array layouts....................................................................... 51Tile placement............................................................................................ 52Caster and leveler dimensions.................................................................... 53

Power cabling, cords and connectors 55Power distribution unit .............................................................................. 56Wiring configurations................................................................................. 58Power interface.......................................................................................... 61Customer input power cabling.....................................................................61Best practices: Power configuration guidelines...........................................61Power extension cords, connectors, and wiring..........................................62

Single-phase..................................................................................63Three-phase (International (Wye))................................................68Three-phase (North American (Delta)).......................................... 71Three-phase (Wye, Domestic).......................................................73

Third Party Racking Option 75Computer room requirements ....................................................................76Customer rack requirements ......................................................................77Third party racks with vertical PDUs — RPQ Required ............................. 79

Requirements for third party racks with vertical PDUs (rear-facing)...................................................................................................... 80Requirements for third party racks with vertical PDUs (inward-facing) .......................................................................................... 82

Chassis to chassis grounding......................................................................83

Optional kits 85Overhead routing kit...................................................................................86Dispersion kits............................................................................................ 86Securing kits...............................................................................................87GridRunner kit and customer-supplied cable trough................................... 87

Best Practices for AC Power Connections 89Best practices overview for AC power connections....................................90Selecting the proper AC power connection procedure................................ 91Procedure A: Working with the customer's electrician onsite.....................92

Procedure A, Task 1: Customer's electrician.................................. 93Procedure A, Task 2: EMC Customer Engineer .............................94Procedure A, Task 3: Customer's electrician................................. 98

Procedure B: Verify and connect................................................................99Procedure C: Obtain customer verification............................................... 100PDU labels................................................................................................ 100

PDU label part numbers............................................................... 100Applying PDU labels, VMAX3 Family............................................. 101

Ground the cabinet.................................................................................... 101AC power specifications............................................................................103

Chapter 7

Chapter 8

Chapter 9

Appendix A

CONTENTS


Typical airflow in a hot/cold aisle environment........................................................... 27Adjacent layout, single-engine array........................................................................... 45Adjacent layout, dual-engine array..............................................................................46Dispersed layout, single-engine array..........................................................................47Dispersed layout, dual-engine, front view................................................................... 48Adjacent and dispersed (mixed) layout, single-engine array....................................... 49Adjacent and dispersed (mixed) layout, dual-engine array..........................................50Layout Dimensions, VMAX3 Family............................................................................. 51Placement with floor tiles, VMAX3 Family.................................................................. 52Caster and leveler dimensions.................................................................................... 53Power distribution unit (PDU) without installed wire bales, rear view.........................56Power distribution unit (PDU) with installed wire bales, rear view..............................57Single-phase, horizontal 2U PDU internal wiring.........................................................58Three-phase (Delta), horizontal 2U PDU internal wiring.............................................59Three-phase (Wye), horizontal 2U PDU internal wiring.............................................. 60Single-phase: E-PW40U-US.......................................................................................65Single-phase: E-PW40URUS......................................................................................66Single-phase: E-PW40UIEC3..................................................................................... 66Single-phase: E-PW40UASTL.....................................................................................67Single-phase: E-PW40L730........................................................................................67Flying leads, three-phase, international: E-PC3YAFLE, ............................................. 69Three-phase, international: E-PCBL3YAG.................................................................. 70Three-phase, North American, Delta: E-PCBL3DHR...................................................72Three-phase, North American, Delta: E-PCBL3DHH...................................................72Three-phase, domestic (Black and Gray): E-PCBL3YL23P.........................................74Customer rack dimension requirements ..................................................................... 78Requirements for customer rack with rear-facing, vertical PDUs............................... 80Requirements for third party rack with inward-facing, vertical PDUs......................... 82Two independent customer-supplied PDUs................................................................ 90Circuit breakers ON — AC power within specification............................................... 93Circuit breakers OFF — No AC power........................................................................93System bay power tee breakers (OFF = pulled out)................................................... 94Connecting AC power, single-phase........................................................................... 95Connecting AC power, three-phase............................................................................96Power zone connections.............................................................................................97PDU label , single-phase and three-phase..................................................................101Label placement— Customer PDU Information......................................................... 101

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FIGURES


FIGURES


Typographical conventions used in this content..........................................................10Revision history...........................................................................................................12Before you begin......................................................................................................... 16Shipping and storage environmental requirements......................................................21Minimum distance from RF emitting devices.............................................................. 24Power consumption and heat dissipation....................................................................25Airflow diagram key.................................................................................................... 27Maximum air volume...................................................................................................28Environmental operating ranges................................................................................. 28Temperature and humidity..........................................................................................28Platform shock and vibration......................................................................................30Sound power and sound pressure levels, A-weighted................................................. 30Hardware acclimation times (systems and components).............................................31OM3 and OM4 Fibre cables — 50/125 micron optical cable.......................................32Space and weight requirements.................................................................................. 41Adjacent layout diagram key.......................................................................................45Adjacent layout diagram key.......................................................................................46Caster and leveler dimensions diagram key.................................................................53Extension cords and connectors options – single-phase.............................................63Extension cords and connectors options – three-phase international (Wye)..............68Extension cords and connectors options – three-phase North American (Delta)........ 71Extension cords and connectors options – three-phase Wye, domestic..................... 73Overhead routing models............................................................................................86Dispersion kit model numbers..................................................................................... 86Securing kit models.................................................................................................... 87Bottom routing model.................................................................................................87Procedure options for AC power connection ..............................................................91VMAX3 Family label part numbers, EMC racks .........................................................100Input power requirements - single-phase, North American, International, Australian..................................................................................................................................103Input power requirements - three-phase, North American, International, Australian..................................................................................................................................104

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TABLES


TABLES


Preface

As part of an effort to improve its product lines, EMC periodically releases revisions ofits software and hardware. Therefore, some functions described in this documentmight not be supported by all versions of the software or hardware currently in use.The product release notes provide the most up-to-date information on productfeatures.

Contact your EMC representative if a product does not function properly or does notfunction as described in this document.

Note

This document was accurate at publication time. New versions of this document mightbe released on EMC Online Support (https://support.emc.com). Check to ensure thatyou are using the latest version of this document.

PurposeThis document is intended for use by customers and/or company representatives whowant to plan the purchase and installation of a VMAX3 Family system.

AudienceThis document is intended for use by customers or company representatives.

Related documentationThe following documentation portfolios contain documents related to the hardwareplatform and manuals needed to manage your software and storage systemconfiguration. Also listed are documents for external components which interact withyour array.

EMC VMAX3 Family Product Guide for VMAX 100K, VMAX 200K, VMAX 400K withHYPERMAX OS

Provides product information regarding the purchase of a VMAX3 Family 100K,200K, 400K.

EMC VMAX Securing Kit Installation Guide

Describes how to install the securing kit on a VMAX3 Family array or VMAX AllFlash array.

EMC VMAX Best Practices Guide for AC Power Connections

Describes the best practices to assure fault-tolerant power to a VMAX3 Familyarray or VMAX All Flash array.

EMC VMAX Power-down/Power-up Procedure

Describes how to power-down and power-up a VMAX3 Family array or VMAX AllFlash array.

HYPERMAX OS 5977.xxx.xxx for EMC VMAX3 Family and VMAX All Flash Release Notes

Describes new features and any known limitations.

Special notice conventions used in this documentEMC uses the following conventions for special notices:

Preface 9

https://support.emc.com/

DANGER

Indicates a hazardous situation which, if not avoided, will result in death orserious injury.

WARNING

Indicates a hazardous situation which, if not avoided, could result in death orserious injury.

CAUTION

Indicates a hazardous situation which, if not avoided, could result in minor ormoderate injury.

NOTICE

Addresses practices not related to personal injury.

Note

Presents information that is important, but not hazard-related.

Typographical conventionsEMC uses the following type style conventions in this document:

Table 1 Typographical conventions used in this content

Bold Used for names of interface elements, such as names of windows,dialog boxes, buttons, fields, tab names, key names, and menu paths(what the user specifically selects or clicks)

Italic Used for full titles of publications referenced in text

Monospace Used for:

l System code

l System output, such as an error message or script

l Pathnames, filenames, prompts, and syntax

l Commands and options

Monospace italic Used for variables

Monospace bold Used for user input

[ ] Square brackets enclose optional values

| Vertical bar indicates alternate selections - the bar means “or”

{ } Braces enclose content that the user must specify, such as x or y orz

... Ellipses indicate nonessential information omitted from the example

Where to get helpSupport, product and licensing information can be obtained as follows:

Preface


Product information

EMC technical support, documentation, release notes, software updates, orinformation about EMC products can be obtained on the https://support.emc.com site (registration required).

Technical support

To open a service request through the https://support.emc.com site, you musthave a valid support agreement. Contact your EMC sales representative fordetails about obtaining a valid support agreement or to answer any questionsabout your account.

Your commentsYour suggestions help us improve the accuracy, organization, and overall quality of thedocumentation. Send your comments and feedback to: [email protected]

Preface

11

https://support.emc.com



mailto:[email protected]

Revision history

Table 2 Revision history

Revision Description and/or change HYPERMAXOS

8.1 Added recommendation for chassis to chassis groundingfor multiple bay systems.

HYPERMAX OS5977.1125.1125

8.0 Modified power consumption and heat dissipationspecifications to include steady state and maximumvalues.

HYPERMAX OS5977.1125.1125

7.0 Corrected formula for 3rd party rack cabinet widthrequirements.

HYPERMAX OS+ Q3 2016Service Pack

6.0 Updated wiring configuration diagrams and content fornew 2U PDUs.Updated power distribution unit recommendations foroverhead power.


5.0 l Minor edits for consistency and readability.

l Added new table row and values for "Storage time(unpowered)" in the topic, "Shipping and storageenvironmental requirements."

l Added line item to Optical multimode cables topic:OM4 cables are used for SRDF connectivity over 16Gb/s Fibre Channel I/O modules.


4.2 l Added information and diagrams for third party rackswith vertical PDUs.

l Updated heat dissipation value for system bay 2 in adual engine system.

n For a 200K: Max heat dissipation changed from30,975 to 28,912 Btu/Hr.

n For a 400K: Max heat dissipation changed from30,975 to 29,688 Btu/Hr.

l Added the following note to PDU and wiringconfiguration topics:

Note

The PDU AC power cords (single-phase and three-phase) extend 74" (188cm) from the PDU chassisand are designed to reach to the bay floor egress forconnection to the customer power supply. 15'(4.57m) extension cables are provided.

Q3 2015 ServicePack

4.1 l Update: Statement re: redundant PDUs.

l Added note to Power and heat dissipation topic.

Q3 2015 ServicePack

Preface


Table 2 Revision history (continued)

Revision Description and/or change HYPERMAXOS

l Updated rack diagram for third party rackrequirements.

4.0 Updates:

l Version numbering (to 4.0).

l Removed dual-engine dispersion reference in Systemlayouts topic: "With dual-engine dispersion, bayplacement can be wherever the customer wants inthe data center."

Q3 2015 ServicePack

3.3 Updates:

l 3rd party customer rack dimension requirementsgraphic.

l Single and dual-engine layout graphics.

Q3 2015 ServicePack

3.2 New: NOTICE in Best practices overview for AC powerconnections.

Q2 2015 ServicePack

3.1 Update: Customer-to-system 3-phase connectors. Q2 2015 ServicePack

3 Update: Environmental operating ranges table. 5977.250.189

2 Update: Dual-engine layout graphic. 5977.250.189

1 First release of the VMAX 100K, 200K, and 400K arrayswith EMC HYPERMAX OS 5977.

5977.250.189

Preface

Revision history 13

Preface


CHAPTER 1

Pre-planning tasks

This chapter includes:

l Before you begin.................................................................................................16l Tasks to review...................................................................................................16

Pre-planning tasks 15

Before you beginVMAX3 Family arrays are designed for installation in data centers that provide:

l Sufficient physical space

l Controlled temperature and humidity

l Airflow and ventilation

l Power and grounding

l System cable routing facilities

l Fire protection

Raised floors are preferred.

For information regarding overhead cable routing, see: Overhead routing kit on page86.

To prepare the site for an array, meet with your EMC Systems Engineer and EMCCustomer Engineer and determine what is needed to prepare for delivery andinstallation.

One or more sessions may be necessary to finalize installation plans.

Tasks to reviewThe following table provides a list of tasks to review during the planning process:

Table 3 Before you begin

Task Comments and/or Provide

Identify power requirements with customer and customerelectrician.

External AC power must be supplied from an independentcustomer-supplied power distribution unit (PDU).

EMC recommends that the customer’s electrician be availableat the installation site for regular and third party rackedarrays.

Best Practices for AC Power Connections on page 89provides details.

For customer-supplied third party rack support, see thedetailed physical requirements in Third Party Racking Optionon page 75.

The field representative working the order must:

l Review the requisite information regarding the third partyracking option.

l In Sizer, select the desired configuration. In the

Hardware Options screen, under Rack Type, select

Third Party.

Complete the Installation Planning Task Sheet and PresiteSurvey in DXCX.

l Connection for ConnectEMC to dial home to the EMCSupport Center. Data Center Safety and Remote Supporton page 35 provides additional details on remotesupport.

Pre-planning tasks


Table 3 Before you begin (continued)

Task Comments and/or Provide

l Power, cooling and ventilation, humidity control, floorload capability, system placement, and service clearancesas required in the data center.

Pre-planning tasks

Tasks to review 17

Pre-planning tasks


CHAPTER 2

Delivery and transportation


l Delivery arrangements....................................................................................... 20l Pre-delivery considerations................................................................................20l Moving up and down inclines..............................................................................20l Shipping and storage environmental requirements............................................. 21

Delivery and transportation 19

Delivery arrangementsDelivery within the United States or Canada is by air-ride truck with custom-designedshipping material, crate, and pallet. International delivery normally involves air freight.

Unless otherwise instructed, the EMC Traffic Department arranges for deliverydirectly to the customer’s computer room. To ensure successful delivery of thesystem, EMC has formed partnerships with specially selected moving companies.These companies have moving professionals trained in the proper handling of large,sensitive equipment. These companies provide the appropriate personnel, floorlayments, and any ancillary moving equipment required to facilitate delivery. Movingcompanies should check general guidelines, weights, and dimensions.

NOTICE

Inform EMC of any labor union-based restrictions or security clearance requirementsprior to delivery.

Pre-delivery considerationsTake into account the following considerations prior to the delivery at your site:

l Weight capacities of the loading dock, tailgate, and service elevator if delivery is toa floor other than the receiving floor.

l Length and thickness of covering required for floor protection.

l Equipment ramp availability if the receiving floor is not level with computer roomfloor.

l Set up the necessary network and gateway access to accommodate EMC SecureRemote Support (ESRS) so that it will be available and operable for the installationdate.

Moving up and down inclinesTo prevent tipping when moving up and down inclines, the following guidelines arerecommended:

l When moving cabinets, all doors/drawers should be closed.

l When moving the cabinet down an incline, the front of the cabinet must go first.

l When moving the cabinet up an incline, the rear of the bay goes last.

All portions of the bay will clear ramp and threshold slopes up to 1:10 (rise to runratio), per Code of Federal Regulations — ADA Standards for Accessible Design, 28CFR Part 36.



Shipping and storage environmental requirementsThe following table provides the environmental requirements for shipping and storage:

Table 4 Shipping and storage environmental requirements

Condition Setting

Ambient temperature -40° to 149° F (-40° to 65° C)

Temperature gradient 43.2° F/hr (24° C/hr)

Relative humidity 10% to 90% noncondensing

Maximum altitude 25,000 ft (7619.7 m)

Storage time (unpowered) Recommendation: Do not exceed 6consecutive months of unpowered storage.


Shipping and storage environmental requirements 21

CHAPTER 3

Specifications


l Radio frequency interference.............................................................................24l Power consumption and heat dissipation........................................................... 25l Airflow................................................................................................................27l Air volume, air quality, and temperature.............................................................28l Shock and vibration........................................................................................... 30l Sound power and sound pressure...................................................................... 30l Hardware acclimation times................................................................................31l Optical multimode cables................................................................................... 32

Specifications 23

Radio frequency interferenceElectro-magnetic fields, which include radio frequencies can interfere with theoperation of electronic equipment. EMC Corporation products have been certified towithstand radio frequency interference (RFI) in accordance with standardEN61000-4-3. In Data Centers that employ intentional radiators, such as cell phonerepeaters, the maximum ambient RF field strength should not exceed 3 Volts /meter.

The field measurements should be taken at multiple points in close proximity to EMCCorporation equipment. It is recommended to consult with an expert prior to installingany emitting device in the Data Center. In addition, it may be necessary to contract anenvironmental consultant to perform the evaluation of RFI field strength and addressthe mitigation efforts if high levels of RFI are suspected.

The ambient RFI field strength is inversely proportional to the distance and powerlevel of the emitting device.

Recommended minimum distance from RF emitting deviceThe following table provides the recommended minimum distances between EMCarrays and RFI emitting equipment. Use these guidelines to verify that cell phonerepeaters or other intentional radiator devices are at a safe distance from the EMCCorporation equipment.

Table 5 Minimum distance from RF emitting devices

Repeater power levela Recommended minimum distance

1 Watt 9.84 ft (3 m)

2 Watt 13.12 ft (4 m)

5 Watt 19.69 ft (6 m)

7 Watt 22.97 ft (7 m)

10 Watt 26.25 ft (8 m)

12 Watt 29.53 ft (9 m)

15 Watt 32.81 ft (10 m)

a. Effective Radiated Power (ERP)

Specifications


Power consumption and heat dissipationEMC provides the EMC Power Calculator to refine the power and heat figures to moreclosely match your array. Contact your EMC Sales Representative or use the EMCPower Calculator for specific supported configurations. The following table providescalculations of maximum power and heat dissipation.

NOTICE

Power consumption and heat dissipation details vary based on the number of systemand storage bays. Ensure that the installation site meets these worst caserequirements.

Table 6 Power consumption and heat dissipation

VMAX 100K VMAX 200K VMAX 400K

Maximum powerand heatdissipation at<26°C and>35°C a

Maximumtotal powerconsumption<26°C />35°C(kVA)

Maximumheatdissipation<26°C />35°C(Btu/Hr)





System bay 1Single engine

8.27 / 10.8 28,201 /36,828

8.37 / 10.9 28,542 /37,169

8.57 / 11.1 29,224 /37,851

System bay 2Single engineb

8.13 / 10.4 27,723 /35,464

8.33 / 10.6 28,405 /36,146

8.43 / 10.7 28,746 /36,487

System bay 1Dual engine

6.44 / 8.8 21,960 /30,008

6.74 / 9.1 22,983 /31,031

7.04 / 9.4 24,006 /32,054

System bay 2Dual engineb

N/A 6.7 / 8.8 22,847 /30,008

6.9 / 9 23,529 /30,690

a. Power values and heat dissipations shown at >35°C reflect the higher power levels associated with both the battery rechargecycle, and the initiation of high ambient temperature adaptive cooling algorithms. Values at <26°C are reflective of more steadystate maximum values during normal operation.

b. Power values for system bay 2 and all subsequent system bays where applicable.

Specifications

Power consumption and heat dissipation 25

Adaptive coolingThe systems apply adaptive cooling based on customer environments to save energy.Engines and DAEs access thermal data through components located within theirenclosures. Based on ambient temperature and internal activity, they set the coolingfan speeds. As the inlet temperatures increase, the adaptive cooling increases the fanspeeds, with the resulting platform power increasing up to the maximum values shownbelow. These values, along with the SPS recharge power consumption, contribute tothe maximum system power consumption values over 35°C shown in Table 6 on page25.

l DAE120 (2.5 Drives) = 305VA - 1024 BTU/hr

l DAE60 (3.5 Drives) = 265VA - 904 BTU/hr

l Engine = 80VA - 273 BTU/hr

Specifications


AirflowSystems are designed for typical hot aisle/cold aisle data center cooling environmentsand installation:

l On raised or nonraised floors.

l In hot aisle/cold aisle arrangements.

The airflow provides less mixing of hot and cold air, which can result in a higher returntemperature to the computer room air conditioner (CRAC). This promotes better heattransfer outside the building and achieves higher energy efficiency and lower PowerUsage Effectiveness (PUE). Additional efficiency can be achieved by sequestering theexhaust air completely and connecting ducts directly to a CRAC unit or to the outside.

Best practice is to place a perforated floor tile in front of each bay to allow adequatecooling air supply when installing on a raised floor. The following figure shows typicalairflow in a hot aisle/ cold aisle environment.

Figure 1 Typical airflow in a hot/cold aisle environment

5

6

5

4 4

8

7 99

1 1

22

3

Table 7 Airflow diagram key

# Description # Description

1 To refrigeration unit 6 Hot aisle

2 Suspended ceiling 7 Perforated rear doors

3 Air return 8 Pressurized floor

4 System bays 9 Perforated floor tile

5 Cold aisle

Specifications

Airflow 27

Air volume, air quality, and temperatureThe installation site must meet certain recommended requirements for air volume,temperature, altitude, and humidity ranges, and air quality.

Air volume specificationsThe following table provides the recommended maximum amount of air volume.

Table 8 Maximum air volume

Bay Units

System bay, single-engine 1,320 cfm (37.5 m3/min)

System bay, dual-engine 1,325 cfm (37.4 m3/min)

Temperature, altitude, and humidity rangesThe following table provides the recommended environmental operating ranges.

Table 9 Environmental operating ranges

Condition System

Operating temperature and operatingaltitude a

l 50° – 90° F (10° to 32° C) at 7,500 ft(2,286 m)

l 50° – 95° F (10° to 35° C) at 3,317 ft(950 m)

Operating altitude (maximum) 10,000 ft (3,048 m) 1.1° derating per 1,000ft b

Operating relative humidity extremes 20% to 80% noncondensing

Operating rate of temperature change 9° F/Hr (5° C/Hr)

Thermal excursion 122° F (48° C) (up to 24 hours)

a. These values apply to the inlet temperature of any component within the bay.b. Derating equals an operating temperature of 29.25° C

Temperature and humidity range recommendationsThe following table provides the recommended operating and humidity ranges toensure long-term reliability, especially in environments where air quality is a concern.

Table 10 Temperature and humidity

Condition System

Operating temperature range 64°— 75° F (18° to 24° C)

Operating relative humidity range 40 — 55%

Specifications


Air quality requirementsVMAX3 arrays are designed to be consistent with the requirements of the AmericanSociety of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE)Environmental Standard Handbook and the most current revision of ThermalGuidelines for Data Processing Environments, ASHRAE TC 9.9 2011.

The arrays are best suited for Class 1A Datacom environments, which consist of tightlycontrolled environmental parameters, including temperature, dew point, relativehumidity and air quality. These facilities house mission critical equipment and aretypically fault tolerant, including the air conditioners. In a data center environment, ifthe air conditioning fails and the temperature is lost, a vault may occur to protectdata.

The data center should maintain a cleanliness level as identified in ISO 14664-1, class 8for particulate dust and pollution control. The air entering the data center should befiltered with a MERV 11 filter or better. The air within the data center should becontinuously filtered with a MERV 8 or better filtration system. In addition, effortsshould be maintained to prevent conductive particles, such as zinc whiskers, fromentering the facility.

The allowable relative humidity level is 20–80% non condensing, however, therecommended operating environment range is 40–55%. For data centers withgaseous contamination, such as high sulfur content, lower temperatures and humidityare recommended to minimize the risk of hardware corrosion and degradation. Ingeneral, the humidity fluctuations within the data center should be minimized. It is alsorecommended that the data center be positively pressured and have air curtains onentry ways to prevent outside air contaminants and humidity from entering thefacility.

For facilities below 40% relative humidity (RH), EMC recommends using groundingstraps when contacting the equipment to avoid the risk of electrostatic discharge(ESD), which can harm electronic equipment.

Note

As part of an ongoing monitoring process for the corrosiveness of the environment,EMC recommends placing copper and silver coupons (per ISA 71.04-1985, Section 6.1Reactivity) in airstreams representative of those in the data center. The monthlyreactivity rate of the coupons should be less than 300 Angstroms. When monitoredreactivity rate is exceeded, the coupon should be analyzed for material species and acorrective mitigation process emplaced.

Specifications

Air quality requirements 29

Shock and vibrationThe following table provides the platform shock and vibration maximums and thetransportation shock and vibration levels (in the vertical direction).

Note

Levels shown apply to all three axes, and should be measured with an accelerometer inthe equipment enclosures within the cabinet.

Table 11 Platform shock and vibration

Platform condition Response measurement level (shouldnot exceed)

Non operational shock 10 G's, 7 ms duration

Operational shock 3 G's, 11 ms duration

Non operational random vibration .40 Grms, 5-500Hz, 30 minutes

Operational random vibration .21 Grms, 5-500Hz, 10 minutes

Packaged system condition

Transportation shock 10 G's, 12 ms duration

Transportation random vibration 1.15 Grms, 1 hour

Frequency range 1-200 Hz

Sound power and sound pressureThe following table provides the sound power and sound pressure levels.

Table 12 Sound power and sound pressure levels, A-weighted

Configuration Sound power levels(LWAd) (B) a

Sound pressure levels(LpA) (dB) b

System bay (max) 7.9 66

System bay (min) 7.6 63

a. Declared noise emissions with.3B correction factor added per ISO9296.b. Measured at the four bystander positions per ISO7779

Specifications


Hardware acclimation timesSystems and components must acclimate to the operating environment beforeapplying power. This requires the unpackaged system or component to reside in theoperating environment for up to 16 hours in order to thermally stabilize and preventcondensation.

Table 13 Hardware acclimation times (systems and components)

If the last 24 hours of theTRANSIT/STORAGEenvironment was this:

…and the OPERATINGenvironment is this:

…then let the systemor componentacclimate in the newenvironment this manyhours:

Temperature Humidity

Nominal68-72°F(20-22°C)

Nominal40-55% RH

Nominal 68-72°F (20-22°C)40-55% RH

0-1 hour

Cold<68°F (20°C)

Dry<30% RH

<86°F (30°C) 4 hours

Cold<68°F (20°C)

Damp≥30% RH

<86°F (30°C) 4 hours

Hot>72°F (22°C)

Dry<30% RH

<86°F (30°C) 4 hours

Hot>72°F (22°C)

Humid30-45% RH

<86°F (30°C) 4 hours

Humid45-60% RH

<86°F (30°C) 8 hours

Humid≥60% RH

<86°F (30°C) 16 hours

Unknown <86°F (30°C) 16 hours

NOTICE

l If there are signs of condensation after the recommended acclimation time haspassed, allow an additional eight (8) hours to stabilize.

l Systems and components must not experience changes in temperature andhumidity that are likely to cause condensation to form on or in that system orcomponent. Do not exceed the shipping and storage temperature gradient of45°F/hr (25°C/hr).

Specifications

Hardware acclimation times 31

Optical multimode cablesOptical multimode 3 (OM3) and optical multimode 4 (OM4) cables are available foropen systems host and SRDF connectivity. To obtain OM3 or OM4 cables, contactyour local sales representative.

l OM3 cables are used for SRDF connectivity over: 4, 8, and 10 Gb/s Fibre ChannelI/O modules, 10 GbE and 1 GbE I/O modules.

l OM4 cables are used for SRDF connectivity over 16 Gb/s Fibre Channel I/Omodules.

l OM4 cables are used with 16 Gb/s Fibre Channel I/O modules to provide FibreChannel connection to switches. Distances of up to 190 m over 8 Gb/s FibreChannel and 125 m over 16 Gb/s Fibre Channel modules are supported.OM2 or OM3 cables can be used, but distance is reduced.

l OM3 cables support 8 and 16 Gb/s Fibre Channel distances up to 150 m or 16 Gb/sFibre Channel distances up to 100 m.

l OM2 cables support 8 Gb/s Fibre Channel distances up to 50 m or 10 Gb/sEthernet up to 82 m.

Note

OM2 cables can be used, but they will not support 8 Gb/s Fibre Channel (SRDF)distances greater then 50 m. For longer distances, use OM3 cables.

Open systems host and SRDF connectivityThe following table provides the OM3 and OM4 cables.

Table 14 OM3 and OM4 Fibre cables — 50/125 micron optical cable

Model number Description

SYM-OM3-1M LC-LC, 1 meter







SYM-OM4-1M LC- LC, 1 meter






Specifications


Table 14 OM3 and OM4 Fibre cables — 50/125 micron optical cable (continued)

Model number Description


Specifications

Open systems host and SRDF connectivity 33

Specifications


CHAPTER 4

Data Center Safety and Remote Support


l Fire suppressant disclaimer................................................................................ 36l Remote support................................................................................................. 36

Data Center Safety and Remote Support 35

Fire suppressant disclaimerFire prevention equipment in the computer room should always be installed as anadded safety measure. A fire suppression system is the responsibility of the customer.When selecting appropriate fire suppression equipment and agents for the datacenter, choose carefully. An insurance underwriter, local fire marshal, and localbuilding inspector are all parties that you should consult during the selection a firesuppression system that provides the correct level of coverage and protection.

Equipment is designed and manufactured to internal and external standards thatrequire certain environments for reliable operation. We do not make compatibilityclaims of any kind nor do we provide recommendations on fire suppression systems. Itis not recommended to position storage equipment directly in the path of highpressure gas discharge streams or loud fire sirens so as to minimize the forces andvibration adverse to system integrity.

Note

The previous information is provided on an “as is” basis and provides norepresentations, warranties, guarantees or obligations on the part of our company.This information does not modify the scope of any warranty set forth in the terms andconditions of the basic purchasing agreement between the customer and EMC .

Remote supportEMC Secure Remote Support (ESRS) is an IP-based, automated, connect home andremote support solution. ESRS is the preferred method of connectivity. EMCrecommends using two connections with ESRS for connection to the redundantmanagement module control station (MMCS).

ESRS customers must provide the following:

l An IP network with Internet connectivity.

l Capability to add Gateway Client servers and Policy Manager servers to thecustomer network.

l Network connectivity between the servers and EMC devices to be managed byESRS

l Internet connectivity to EMC’s ESRS infrastructure by using outbound ports.

l Network connectivity between ESRS Client(s) and Policy Manager.

Once installed, ESRS monitors the array and automatically notifies EMC CustomerService in the event of a problem. If an error is detected, an EMC support professionalutilizes the secure connection to establish a remote support session to diagnose, and ifnecessary, perform a repair.

EMC Customer Service can use ESRS to:

l Perform downloads of updated software in lieu of a site visit.

l Deliver license entitlements directly to the array.



NOTICE

EMC provides an optional modem that uses a regular telephone line or operates with aPBX. EMC recommends using two connections to the redundant management modulecontrol station (MMCS).

The EMC Secure Remote Support Gateway Site Planning Guide provides additionalinformation.


Remote support 37

CHAPTER 5

Physical weight and space


l Floor load-bearing capacity................................................................................40l Raised floor requirements.................................................................................. 40l Physical space and weight.................................................................................. 41

Physical weight and space 39

Floor load-bearing capacityStorage arrays can be installed on raised floors. Customers must be aware that theload-bearing capacity of the data center floor is not readily available through a visualinspection of the floor. The only definitive way to ensure that the floor is capable ofsupporting the load associated with the array is to have a certified architect or thedata center design consultant inspect the specifications of the floor to ensure that thefloor is capable of supporting the array weight.

CAUTION

l Customers are ultimately responsible for ensuring that the floor of the datacenter on which the array is to be configured is capable of supporting thearray weight, whether the array is configured directly on the data center flooror on a raised floor supported by the data center floor.

l Failure to comply with these floor loading requirements could result in severedamage to the storage array, the raised floor, subfloor, site floor and thesurrounding infrastructure should the raised floor, subfloor or site floor fail.

l Notwithstanding anything to the contrary in any agreement between EMCand the customer, EMC fully disclaims any and all liability for any damage orinjury resulting from the customer’s failure to ensure that the raised floor,subfloor and/or site floor are capable of supporting the storage array weight.The customer assumes all risk and liability associated with such failure.

Raised floor requirementsBest practice is to use 24 x 24 inch heavy-duty, concrete-filled steel floor tiles. If adifferent size or type of tile is used, the customer must ensure that the tiles have aminimum load rating that is sufficient for supporting the storage array weight. Ensureproper physical support of the system by following requirements that are based on theuse of 24 x 24 in. (61 x 61 cm) heavy-duty, concrete-filled steel floor tiles.

Raised floors must meet the following requirements:

l Floor must be level.l Floor tiles and stringers must be rated to withstand concentrated loads of two

casters each that weigh up to 700 lb (317.5 kg).

Note

Caster weights are measured on a level floor. The front of the array weighs more thanthe rear of the configuration.

l Floor tiles and stringers must be rated for a minimum static ultimate load of 3,000lb (1,360.8 kg).

l Floor tiles must be rated for a minimum of 1,000 lb (453.6 kg) on rolling load.l For floor tiles that do not meet the minimum rolling load rate, EMC recommends

the use of coverings, such as plywood, to protect floors during system roll.l Floor tile cutouts weaken the tile. An additional pedestal mount adjacent to the

cutout of a tile can minimize floor tile deflection. The number and placement of



additional pedestal mounts relative to a cutout should be in accordance with thetile manufacturer’s recommendations.

l Take care when positioning the bays to make sure that a caster is not moved into acutout. Cutting tiles per specifications ensures the proper caster placement.

l Use or create no more than one floor tile cutout that is no more than 8 in. (20 cm)wide by 6 in. (15 cm) deep in each 24 x 24 in. (61 x 61 cm) floor tile.

l Ensure that the weight of any other objects in the data center does notcompromise the structural integrity of the raised floor or the subfloor (nonraisedfloor) of the data center.

Physical space and weightThe following table provides the physical space, maximum weights, and clearance forservice.

Table 15 Space and weight requirements

Bayconfigurations a

Heightb

(in/cm)Widthc

(in/cm)Depthd

(in/cm)Weight(max lbs/kg)

System bay, single-engine

75/190 24/61 47/119 2065/937

System bay, dual-engine

75/190 24/61 47/119 1860/844

a. Clearance for service/airflow is the front at 42 in (106.7 cm) front and the rear at 30 in(76.2 cm).

b. An additional 18 in (45.7 cm) is recommended for ceiling/top clearance.c. Measurement includes .25 in. (0.6 cm) gap between bays.d. Includes front and rear doors.


Physical space and weight 41

CHAPTER 6

Position Bays


l System bay layouts............................................................................................ 44l Dimensions for array layouts...............................................................................51l Tile placement....................................................................................................52l Caster and leveler dimensions............................................................................53

Position Bays 43

System bay layoutsThe number of bays and the system layout depend on the array model, the customerrequirements, and the space and organization of the customer data center.

Storage arrays can be placed in the following layouts:

l Adjacent — all bays are positioned side-by-side.

l Dispersed — dispersed layouts are provided with longer fabric and Ethernet cablebundles that allow 82 ft (25 m) of separation between system bay 1 and systembays 2 through 8.

Dispersed system bays require dispersed cable and optics kits and one set of sideskins for each dispersed system bay in the configuration.

Note

n The routing strategy (beneath raised floor or overhead), site requirements, andthe use of GridRunners (optional) or cable troughs can cause the actualdistances to vary.

n GridRunners are used to create a strain relief for all dispersed, under the floor,cable bundles. GridRunners are installed in the locations where the cable bundleenters and exits the area under the raised floor.

l Adjacent and dispersed bays (mixed) layouts — allow both adjacent and dispersedlayout of either single or dual-engine arrays with adjacent and dispersed bays.

Note

Single and dual-engine arrays cannot be mixed.

Position Bays


Adjacent layouts, single-engine arrayOn single-engine arrays with adjacent layouts, bays are positioned side-by-side to theright of system bay 1 (front view) and secured with lower brackets.

The following figure shows adjacent layout of a single-engine array.

Figure 2 Adjacent layout, single-engine array

System

bay 1System

bay 2

System

bay 3System

bay 4

System

bay 5System

bay 6

System

bay 7

System

bay 8

Engine 1 Engine 2 Engine 3 Engine 4 Engine 5 Engine 6 Engine 7 Engine 8

R1 R2 R3 R4 R5 R6 R700

Bay position

2 31

Table 16 Adjacent layout diagram key

# Description

1 VMAX 100K

2 VMAX 200K

3 VMAX 400K

Position Bays

Adjacent layouts, single-engine array 45

Adjacent layouts, dual-engine arrayDual-engine systems with adjacent layouts position system bay 1 next to system bay 2,and system bay 3 next to system bay 4.

The following figure shows the adjacent layout of dual-engine arrays by model type.

Figure 3 Adjacent layout, dual-engine array

System

bay 1

System

bay 2

Engine 1

Engine 2 Engine 4

Engine 3

00 R1

System

bay 3

System

bay 4

Engine 5 Engine 7

Engine 8Engine 6

R2 R3

Bay position

23

1

Table 17 Adjacent layout diagram key

# Description

1 VMAX 100K

2 VMAX 200K

3 VMAX 400K

Position Bays


Dispersed layouts, single-engine arrayThe following figure shows a single-engine array with eight system bays in a dispersedlayout.

Figure 4 Dispersed layout, single-engine array

System

bay 1

System

bay 3

System

bay 4

System

bay 5System

bay 6

System

bay 8

System

bay 2

System

bay 7

Engine 3Engine 4 Engine 5 Engine 6 Engine 7

Engine 2Engine 1

Engine 8

Position Bays

Dispersed layouts, single-engine array 47

Dispersed layout, dual-engine arrayThe following figure shows an example of a dual-engine dispersed layout.

Figure 5 Dispersed layout, dual-engine, front view

System

bay 1

Engine 7

Engine 2

Engine 1

Engine 8

Engine 5

Engine 6

Engine 3

Engine 4

System

Bay 2

System

Bay 1

System

Bay 3

System

Bay 4

Position Bays


Adjacent and dispersed (mixed) layoutThe following figure shows a single-engine array with a mixed layout.

Figure 6 Adjacent and dispersed (mixed) layout, single-engine array

System

bay 1System

bay 2

System

bay 4

System

bay 3

Engine 3

Engine 1 Engine 2 Engine 4

Initialinstall

Upgrade

00 R1 R2

Bay position

Initialinstall

Position Bays

Adjacent and dispersed (mixed) layout 49

The following figure shows a dual-engine array with a mixed layout.

Figure 7 Adjacent and dispersed (mixed) layout, dual-engine array

System

bay 1

Engine 1

Initial

install

System

bay 2

Engine 3

Engine 2

Engine 4

System

bay 3

Engine 5

Engine 6

00 R1

Bay position

Position Bays


Dimensions for array layouts

Placing arrays in the data center or computer room involves understandingdimensions, planning for cutouts, and ensuring clearance for power and host cables.

l On nonraised floors, cables are routed overhead. An overhead routing bracket isprovided to allow easier access of overhead cables into the bay

l On raised floors, cables are routed across the subfloor beneath the tiles.

l Ensure there is a service area of 42 in (106 cm) for the front and 30 in (76 cm) forthe rear of each system bay.

The following figure shows the layout dimensions:

Figure 8 Layout Dimensions, VMAX3 Family

Front

Rear

47 in.(119 cm)Includes

front and rear doors

.25 in. (.64 cm) gapbetween bays

24.02 in.(61.01 cm)

24 in.(61 cm)

Position Bays

Dimensions for array layouts 51

Tile placementYou must understand tile placement to ensure that the array is positioned properly andto allow sufficient room for service and cable management.

When placing the array, consider the following:

l Typical floor tiles are 24 in. (61 cm) by 24 in. (61 cm).

l Typical cutouts are:

n 8 in. (20.3 cm) by 6 in. (15.2 cm) maximum.

n 9 in. (22.9 cm) from the front and rear of the floor tile.

n Centered on the tiles, 9 in (22.9 cm) from the front and rear and 8 in (20.3)from sides.

l Maintain a .25 in. (.64 cm) gap between bays.

l Service area of 42 in (106 cm) for the front and 30 in (76 cm) for the rear on thesystem bays.

The following figure provides tile placement information for all VMAX3 arrays (withdoors).

Figure 9 Placement with floor tiles, VMAX3 Family

Rear

A A

System

bay

System

bay

A

System

bay

A

System

bay

A A A

System

bay

A

System

baySystem

baySystem

bay

Front

F

l

o

o

r

T

i

l

e

Position Bays


Caster and leveler dimensionsThe bay(s) bottom includes four caster wheels. The front wheels are fixed; the tworear casters swivel in a 1.75-in. diameter. Swivel position of the caster wheelsdetermines the load-bearing points on your site floor, but does not affect the cabinetfootprint. Once you have positioned, leveled, and stabilized the bay(s), the fourleveling feet determine the final load-bearing points on your site floor.

The following figure shows caster and leveler dimensions.

Figure 10 Caster and leveler dimensions

Front

Rear

Front

Rear

18.830

20.700

31.740

*117.102 minimum 20.580 maximum

Top view

Rear view Rear view

Right side view

3.628

3.620

30.870 minimum

32.620 maximum

1.750

1.750

20.650

40.35

Bottom view

Leveling feet

*1*2

*3

3.620

*4*7

*5

*6

*8

*9

*10

Table 18 Caster and leveler dimensions diagram key

# Description

*1 Minimum (17.102) and maximum (20.58)distances based on the swivel position of thecaster wheel.

Position Bays

Caster and leveler dimensions 53

Table 18 Caster and leveler dimensions diagram key (continued)

# Description

*2 Right front corner detail. Dimension (3.628)to the center of caster wheel from surface.

*3 Diameter (1.750) of caster wheel swivel.

*4 Outer surface of rear door.

*5

*6 Diameter (1.75) of swivel (see detail *3).

*7 Bottom view of leveling feet.

*8 Maximum (32.620) distance based on swivelposition of the caster wheel.

*9 Minimum (30.870) distance based on swivelposition of the caster wheel.

*10 Distance (3.620) to the center of the casterwheel from the surface (see detail *2).

Position Bays


CHAPTER 7

Power cabling, cords and connectors


l Power distribution unit ......................................................................................56l Wiring configurations.........................................................................................58l Power interface.................................................................................................. 61l Customer input power cabling............................................................................ 61l Best practices: Power configuration guidelines.................................................. 61l Power extension cords, connectors, and wiring................................................. 62

Power cabling, cords and connectors 55

Power distribution unitThe VMAX3 array is powered by two redundant power distribution units (PDUs), onePDU for each power zone.

Both PDUs are mechanically connected together, including mounting brackets, tocreate a single 2U structure, as shown in the following figures. The PDUs areintegrated to support AC-line input connectivity and provide outlets for everycomponent in the bay.

The PDU is available in three wiring configurations that include:

l Single-phase

l Three-phase Delta

l Three-phase Wye

Note

The PDU AC power cords (single-phase and three-phase) extend 74" (188cm) fromthe PDU chassis and are designed to reach to the bay floor egress for connection tothe customer power supply. 15' (4.57m) extension cables are provided.

Each PDU provides the following components:

l A total of 24 power outlets for field replaceable units (FRUs). The outlets aredivided into six banks with each bank consisting of four IEC 60320 C13 individualAC outlets.

l Each bank of outlets is connected to individual branch circuits that are protectedby a single two pole 20 Amp circuit breaker.

l Depending on which PDU option selected there is a different input connector foreach PDU.

If the customer requires power to be supplied from overhead, EMC recommendsreplacing the rear top cover of the bay with the ceiling routing top cover, described in Overhead routing kit on page 86, which allows the power cables inside the machineto be routed out through the top.

A second option is to "drop" the power cables down the hinge side, to the bottom, androute them inside the machine. The cables should be dressed to allow all doors to openfreely and space should be provisioned accordingly to accommodate an adjacentcabinet.

Figure 11 Power distribution unit (PDU) without installed wire bales, rear view



Figure 12 Power distribution unit (PDU) with installed wire bales, rear view


Power distribution unit 57

Wiring configurations

NOTICE

These wiring configurations are used for the redundant PDU in the complete assembly(PDU A and PDU B). Each figure represents half of the independent PDU assembly.The same wiring configurations are used on each PDU.

Note

The PDU AC power cords (single-phase and three-phase) extend 74" (188cm) fromthe PDU chassis and are designed to reach to the bay floor egress for connection tothe customer power supply. 15' (4.57m) extension cables are provided.

Single-phase wiring configurationFigure 13 Single-phase, horizontal 2U PDU internal wiring

1 2 3

1514 16 18 19 2120

20A CB4

22

20A CB1

20A CB5 20A CB6

23

20A CB2 20A CB3

L1

L1

L1

L1 L1

L1

4 5 6 7 8 9 10 11

13

LN LN LN

L1

= 1

0A

WG

L2

= 1

0 A

WG

10 AWG

NL L N L N

P1

L2

L2 L2

L2

L2

L2

G

G =

10

AW

G

G

L1

= 1

0A

WG

L2

= 1

0 A

WG

G =

10

AW

G G

reen

L1

= 1

0A

WG

L2

= 1

0 A

WG

G =

10

AW

G G

reen

G

P2 P3

.

LN LN

17

NL L N L N

LN

12

24

P3P1 P2

Single-phase PDU connector, L6-30P x 6



Three-phase (Delta) wiring configurationFigure 14 Three-phase (Delta), horizontal 2U PDU internal wiring

20A CB4

20A CB1

20A CB5 20A CB6

L1L2

L3G

20A CB2 20A CB3

L1

L1

L1

L1L2

L2

L2

L2 L3

L3 L3

L3

L1(X

) =

8A

WG

Bla

ck

wir

e

L2

(Y

) =

8 A

WG

White

wir

e

L3

(Z

) =

8 A

WG

Re

d w

ire

G =

8 A

WG

Gre

en

8 AWG

P1

1413 15 17 18 2019 21 22

12

LN LN LNLN LN

16

LN

1 2 3 4 5 6 7 8 9 10 11

NL L NL N

NL L N L N

23 24

Hubbell CS-8365L or equivalent x 2


Wiring configurations 59

Three-phase (Wye) wiring configurationFigure 15 Three-phase (Wye), horizontal 2U PDU internal wiring

P1

20ACB4

20ACB1

20ACB5

20ACB6

L1 L2 L3 N

20ACB2

20ACB3

L1

L1

L2

L2 L3

L3

L1

(X

) B

row

n

L2

(Y

) B

lack

L3

(Z

) G

ray

Gre

en/y

ello

w

10 AWG

G

N

N N

N

N

N

N B

lue

1413 15 17 18 2019 21 22

12

LN LN LNLN LN

16

LN

1 2 3 4 5 6 7 8 9 10 11

NL L N L NNL L N L N

23 24

ABL SURSUM S52S30A or equivalent x 2



Power interfaceData centers must conform to the corresponding specification for arrays installed inNorth American, International, and Australian sites.

Each bay in a system configuration contains a complete 2U PDU assembly. The PDUassembly is constructed with two electrically individual PDUs.

NOTICE

Customers are responsible for meeting all local electrical safety requirements.

Customer input power cablingBefore the array is delivered, the customer must supply and install the requiredreceptacles on the customer’s PDUs for zone A and zone B power for the system bay.

NOTICE

EMC recommends that the customer's electrician be present at installation time towork with the EMC Customer Engineer to verify power redundancy.

Refer to the EMC VMAX Best Practices Guide for AC Power Connections for requireditems at the customer site.

Best practices: Power configuration guidelinesThe following section provides best practice guidelines for evaluating and connectingpower, as well as for choosing a UPS component.

Uptime Institute best practicesFollow these best practice guidelines when connecting AC power to the array:

l The EMC customer engineer (CE) should discuss with the customer the need forvalidating AC power redundancy at each bay. If the power redundancyrequirements are not met in each EMC bay, a Data Unavailable (DU) event couldoccur.

l The customer should complete power provisioning with the data center prior toconnecting power to the array.

l The customer‘s electrician or facilities representative must verify that the ACvoltage is within specification at each of the power drops being fed to each EMCproduct bay.

l All of the power drops should be labeled to indicate the source of power (PDU)and the specific circuit breakers utilized within each PDU:

n Color code the power cables to help achieve redundancy.

n Clearly label the equipment served by each circuit breaker within the customerPDU.

l The electrician or facilities representative must verify that there are two powerdrops fed from separate redundant PDUs prior to turning on the array:

n If both power drops to a bay are connected to the same PDU incorrectly, a DUevent will result during normal data center maintenance when the PDU isswitched off. The label on the power cables depicts the correct connection.


Power interface 61

l The electrician should pay particular attention to how each PDU receives powerfrom each UPS within the data center because it is possible to create a scenariowhere turning off a UPS for maintenance could cause both power feeds to a singlebay to be turned off, creating a DU event.

l The customer’s electrician should perform an AC verification test by turning offthe individual circuit breakers feeding each power zone within the bay, while theCustomer Engineer monitors the LED on the SPS modules to verify that powerredundancy has been achieved in each bay.

One PDU should never supply both power zone feeds to any one rack of equipment.

Power extension cords, connectors, and wiringThe following section illustrates a variety of extension cords that offer differentinterface connector options. The selected cords are used to interface between thecustomer’s power source and each PDU connection.

The amount of cords needed is determined by the number of bays in the array and thetype of input power source used (single-phase or three-phase).



Single-phaseThe following tables describe the extension cords and connector options for single-phase power transmission.

Table 19 Extension cords and connectors options – single-phase

Plug on eachEMC powercorda

EMC-supplied extensioncord/model numberb, c

EMCPowerCableP/N

EMC-suppliedextension cordreceptacle (P1)connecting toEMC plug

EMC-suppliedextension cordplug (P2)connecting tocustomer PDUreceptacle

Customer PDUreceptacle

NEMA L6-30

E-PW40U-US 038-003-438 (BLK15FT)

038-003-898 (GRY15FT)

038-003-479 (BLK21FT)

038-003-794 (GRY21FT)

NEMA L6-30R NEMA L6-30P NEMA L6-30R

E-PW40URUS 038-003-441 (BLK15FT)

038-003-901 (GRY15FT)

038-003-482 (BLK21FT)

038-003-797 (GRY21FT)

NEMA L6-30R Russellstoll 3750DP Russellstoll 9C33U0

E-PW40UIEC3

CAUTION

The single phase linevoltage must be below264VAC to use these cableassemblies.

038-003-440 (BLK15FT)

038-003-900 (GRY15FT)

038-003-481 (BLK21FT)

NEMA L6-30R IEC-309 332P6 IEC-309 332C6


Single-phase 63

Table 19 Extension cords and connectors options – single-phase (continued)


EMC-supplied extensioncord/model numberb, c

EMCPowerCableP/N

EMC-suppliedextension cordreceptacle (P1)connecting toEMC plug

EMC-suppliedextension cordplug (P2)connecting tocustomer PDUreceptacle


038-003-796 (GRY21FT)

E-PW40UASTL 038-003-439 (BLK15FT)

038-003-899 (GRY15FT)

038-003-480 (BLK21FT)

038-003-795 (GRY21FT)

NEMA L6-30R CLIPSAL 56PA332 CLIPSAL56CSC332

E-PW40L730

CAUTION

The single phase linevoltage must be below264VAC to use these cableassemblies.

038-004-301 (BLK15FT)

038-004-302 (GRY15FT)

038-004-303 (BLK21FT)

038-004-304 (GRY21FT)

NEMA L6-30R NEMA L7-30P NEMA L7-30R

a. Six (6) plugs per system bayb. Two (2) cords per model, cord length of 15 feet / 4.57 meters.c. The EMC ordering system defaults to one of the extension cord models based on the country of installation. The default value

can be overridden in the EMC ordering system.

Customer-to-system wiring for bays (single-phase)

The following figures provide cable descriptions for customer-to-system wiring forsingle-phase power transmission.

Note

Each single-phase power cable L (Line), N (Neutral) or L (Line) signal connectiondepends on the country of use.



Figure 16 Single-phase: E-PW40U-US

P1 P2

L6-30R L6-30P

X Y

G

Power cord wiring diagram

Color From To Signal

BLK P1-X P2-X L

WHT P1-Y P2-Y N

GRN P1-G P2-G GND

XY

G

L6-30R L6-30P

X Y

G



BLK P1-X P2-X L

WHT P1-Y P2-Y L

GRN P1-G P2-G GND

XY

G

L6-30R L6-30P


Single-phase 65

Figure 17 Single-phase: E-PW40URUS

P1 P2

L6-30R 3750DP

X Y

G


BLK P1-X P2-L1 L

WHT P1-Y P2-L2 N

GRN P1-G P2-G GND


L6-30R

L1 L2

G

3750DP

X Y

G


BLK P1-X P2-L1 L

WHT P1-Y P2-L2 L

GRN P1-G P2-G GND


L6-30R

L1 L2

G

3750DP

Figure 18 Single-phase: E-PW40UIEC3

X Y

G

P1 P2

L6-30R 332P6W

G

Y X


BRN P1-X P2-X L

BLU P1-Y P2-Y N

GRN/YEL P1-G P2-G GND

X Y

G


L6-30R 332P6W

X Y

G


BLK P1-X P2-X L

WHT P1-Y P2-Y L

GRN/YEL P1-G P2-G GND


L6-30R 332P6W

G

Y X

G

Y X



Figure 19 Single-phase: E-PW40UASTL

P1 P2

L6-30R

CLIPSAL

56PA332


BRN P1-X P2-AP L

BLU P1-Y P2-N N

GRN/YEL P1-G P2-E GND

X Y

G


L6-30R 56PA332

G

Y X

G

Y X

G

Y X


BRN P1-X P2-AP L

BLU P1-Y P2-N L

GRN/YEL P1-G P2-E GND

X Y

G


L6-30R 56PA332

G

Y X

G

Y X

X Y

G

Figure 20 Single-phase: E-PW40L730

L6-30R L7-30P

P1 P2

Color Signal P1 P2

BLK L X Brass

WHT N Y W (Silver)

GRN/YEL GND GND GND

X Y

G


L6-30R L7-30P

Color Signal P1 P2

BLK L X Brass

WHT L Y W (Silver)

GRN/YEL GND GND GND

X Y

G


L6-30R L7-30P


Single-phase 67

Three-phase (International (Wye))The following table describes the extension cords and connector for three-phaseinternational (Wye) power transmission.

Table 20 Extension cords and connectors options – three-phase international (Wye)


EMC suppliedextension cordEMC modelnumberb

EMC Power CableP/N

EMC suppliedextension cordreceptacle (P1)connecting toEMC plug

EMC suppliedextension cordplug (P2)connecting tocustomer PDUreceptacle


ABL Sursum -S52S30A orHubbell -C530P6S

E-PC3YAFLEc 038-004-572 (BLK15FT)

038-004-573 (GRY15FT)

ABL Sursum -K52S30A orHubbell -C530C6S

Flying Leads

(International)

Determined bycustomer

E-PCBL3YAG 038-004-574 (BLK15FT)

038-004-575 (GRY15FT)


ABL Sursum -S52S30A orHubbell -C530P6S


a. Two (2) plugs per bay.Up to four (4) plugs if a third party or second system is in the rack.

b. Two (2) cords per model, cord length of 15 feet / 4.57 meters.c. The EMC ordering system defaults to one of the extension cord models based on the country of installation. The default value

can be overridden in the EMC ordering system.



Customer-to-system wiring (three-phase, International)

The following figures provide cable descriptions for customer-to-system wiring forthree-phase international power transmission.

Figure 21 Flying leads, three-phase, international: E-PC3YAFLE,

P1

Shrink tubing

ABL Sursum - K52S30A or

Hubbell - C530C6S

Wire

Color From

Hubbell

Connector

ABL –

Sursum

Connector

TO

BRN P1 R1 L1 X-(L1)

BLK P1 S2 L2 Y-(L2)

GRY P1 T3 L3 Z-(L3)

BLU P1 N N W-(N)

GRN/YEL P1 G PE GND


Three-phase (International (Wye)) 69

Figure 22 Three-phase, international: E-PCBL3YAG

P1

ABL Sursum - K52S30A or

Hubbell - C530C6S

P2

ABL Sursum - S52S30A or

Hubbell - C530P6S

Wire Color From Hubbell ABL-Surum To Hubbell ABL-Surum

BRN P1 R1 L1 P2 R1 L1

BLK P1 S2 L2 P2 S2 L2

GRY P1 T3 L3 P2 T3 L3

BLU P1 N N P2 N N

GRN/YEL P1 G PE P2 G PE



Three-phase (North American (Delta))The following table describes the extension cords and connector for three-phaseNorth American (Delta) power transmission.

Table 21 Extension cords and connectors options – three-phase North American (Delta)



EMC Power CableP/N

EMC supplied

extension cordreceptacle (P1)connecting toEMC plug



HubbellCS-8365C

E-PCBL3DHRc 038-003-272 (BLK15FT)

038-003-789 (GRY15FT)

HubbellCS-8364C

Russellstoll9P54U2

Russellstoll9C54U2d

E-PCBL3DHH 038-003-271 (BLK 15FT)

038-003-788 (GRY15FT)

HubbellCS-8364C

HubbellCS-8365C

HubbellCS-8364C

a. Two (2) plugs per bay.b. Two (2) cords per model, cord length of 15 feet / 4.57 meters.c. The EMC ordering system defaults to one of the extension cord models based on the country of installation. The default value

can be overridden in the EMC ordering system.d. EMC supplied as EMC model number E-ACON3P-50.


Three-phase (North American (Delta)) 71

Customer-to-system wiring (three-phase, North American (Delta))

The following figures provide cable descriptions for three-phase North American(Delta) power transmission.

Figure 23 Three-phase, North American, Delta: E-PCBL3DHR

P1 P2

CS8364 Russellstoll 9P54U2

CS8364 9P54U2Color

BLK

WHT

RED

GRN

From

P1-X

P1-Y

P1-Z

P1-G

To

P2-X

P2-Y

P2-Z

P2-G

Signal

L1

L2

L3

GND

X

YZX

Y

Z


Figure 24 Three-phase, North American, Delta: E-PCBL3DHH

P1 P2

CS8364 CS8365

CS8364 CS8365Color

BLK

WHT

RED

GRN

From

P1-X

P1-Y

P1-Z

P1-G

To

P2-X

P2-Y

P2-Z

P2-G

Signal

L1

L2

L3

GND

Y

Z

ZX

X

Y



Three-phase (Wye, Domestic)The following table describes the extension cords and connector for three-phase Wyedomestic power transmission.

Table 22 Extension cords and connectors options – three-phase Wye, domestic

Plug on back ofEMC systema


EMC PowerCable P/N

EMC suppliedextension cordreceptacle (P1)connecting toEMC plug



ABL SursumS52.30

E-PCBL3YL23P c,d 038-004-305(BLK 15FT)

038-004-306(GRY 15FT)

Hubbell C530C6S NEMA L22-30P NEMA L22-30R

a. Two (2) plugs per bay.b. Two (2) cords per model, cord length of 15 feet / 4.57 meters.c. The EMC ordering system defaults to one of the extension cord models based on the country of installation. The default value

can be overridden in the EMC ordering system.d. The line to neutral voltage must be below 264VAC to use these cable assemblies.


Three-phase (Wye, Domestic) 73

Customer-to-system wiring (three-phase, Wye, Domestic)

The following figure provides cable descriptions for models with three-phase Wyedomestic power transmission.

Figure 25 Three-phase, domestic (Black and Gray): E-PCBL3YL23P

HubbellC530C6S

NEMA

P1 P2

L22-30P

Color From (P1) To (P2) Signal

BLK1 P1-R1 P2-X L1 BLK2 P1-S2 P2-Y L2BLK3 P1-T3 P2-Z L3 BLK4 P1-N P2-N NGRN/YLW P1-G P2-G GND

C530C6SL22-30P

Black, 15 ft

Gray, 15 ft

P1 P2

Color From (P1) To (P2) Signal

BRN P1-R1 P2-X L1 BLK P1-S2 P2-Y L2GRAY P1-T3 P2-Z L3 BLUE P1-N P2-N NGRN/YLW GND GND GND

C530C6SL22-30P



CHAPTER 8

Third Party Racking Option


l Computer room requirements ........................................................................... 76l Customer rack requirements ............................................................................. 77l Third party racks with vertical PDUs — RPQ Required .....................................79l Chassis to chassis grounding..............................................................................83

Third Party Racking Option 75

Computer room requirements

The following computer room requirements provide service access and minimizephysical disruption:

l To ensure integrity of cables and connections, do not move racks that are secured(bolted) together after installation.

l A minimum of 42 inches (107 cm) front and 30 inches (76 cm) rear clearance isrequired to provide adequate airflow and to allow for system service.



Customer rack requirementsThe array components are shipped in a fully tested EMC rack and are installed into thecustomer-supplied rack by EMC customer support engineers only. The originalshipping rack, when empty, is returned to EMC after the installation is complete.

To ensure successful installation and secure component placement, customer racksmust conform to the following requirements:

l National Electrical Manufacturers Association (NEMA) standard for 19-inchcabinets.

l Individual racks must be empty at the time of installation.

l Threaded hole racks are not supported.

l The cabinet must be in its final location with stabilizing (anti-tip) bracketsinstalled.

l A separate rack that supports a minimum 2000 lb/907 kg of weight must beprovided for each system bay.

Note

The customer must ensure floor load bearing requirements are met.

l Components and cables installed in customer racks must conform to theseconfiguration rules:

n Components and cables within a system bay can not be moved to availablespace in different bay, or to a different location within the same bay.

n System must be properly positioned in accordance with physical placementrules.

l Internal depth of at least 43 inches (109 cm) with the front and rear doors closed.This measurement is from the front surface of the NEMA rail to the rear door.

l Round or square channel openings must support M5 screws that secure EMC railsand components. Clip nuts are provided by EMC as required.

l Non-dispersed rack-to-rack pass-through cable access at least 3 inches (7.6 cm)in diameter must be available via side panels or horizontal through openings.

l To ensure proper clearance and air flow to the array components, customersupplied front doors and standard bezels, if used, must include a minimum of 2.5inch (6.3 cm) clearance between the back surface of the door to the front surfaceof the vertical NEMA rails.Front and rear doors must also provide:

n A minimum of 60% (evenly distributed) air perforation openings.

n Appropriate access for service personnel, with no items that prevent front orrear access to EMC components.

n Exterior visibility of system LEDs.


Customer rack requirements 77

Figure 26 Customer rack dimension requirements

Rack

Post

Rea

r

(19” (48.26 cm) min

Rack

Post

Rack

Post

Rack

Post

Rear NEMA Front NEMA

Front NEMA Rear NEMA

(24

” (6

0.9

6 c

m)

min

)

19

” N

EM

A

Fro

nt

—Fro

nt

Door—

a b c

(24” (60.96 cm) min)

2.5” (6.35 cm) (min)

(48

.26

cm

)—Rear D

oor—

Min depth

(43” (109.2 cm) min)

d

e

Rack, Top View

Rack depth = a+b+c

Dim Label Description

a = distance between front surface of rack post and NEMA rail.

b = distance between NEMA rails.(24" (60.96 cm) recommended, up to 34" (86.36 cm) allowed.)

c = distance between rear NEMA rails to interior surface of rear door.Minimum requirement = 19" (48.26 cm).

d If a front door exists, = distance between inner-front surface of the front door and the front NEMArail.

e = distance between rear surface of rack post to inner surface of rear door.



Third party racks with vertical PDUs — RPQ RequiredEach system bay is powered by two redundant power distribution units (PDUs), onePDU for each power zone. Rather than use the standard EMC horizontal PDU, thecustomer can use vertical PDUs via RPQ. The general requirements for third partyracks with rear-facing or inward-facing PDUs are listed below.

l Requirements for third party racks with vertical PDUs (inward-facing) on page82

l Requirements for third party racks with vertical PDUs (rear-facing) on page 80

General requirements for vertical PDUs within third party racksIn addition to meeting standard VMAX array power requirements, vertical PDUs shouldabide by the following:

l Both PDUs support AC-line input connectivity and provide outlets for everycomponent in the bay.

l The PDU must be available in the wiring configuration that matches the customerpower supply.Options include:

n Single-phase

n Three-phase Delta

n Three-phase Wye

l Each PDU should meet the following requirements:

n At a minimum, a total of 24 power outlets must be provided.The outlets are divided into six banks with each bank consisting of four IEC60320 C13 individual AC outlets.

n Each bank of outlets is connected to individual branch circuits that areprotected by a single two pole 20 Amp circuit breaker.

n The PDU capacity should exceed the power requirements shown in the PowerCalculator for the specific max configuration.

n Single PDU mounted per side per Figure 27 on page 80 and Figure 28 on page82.

If the customer requires power to be supplied from overhead, EMC recommends oneof the following:

l Option 1: Replace the rear top cover of the bay with the ceiling routing top cover,described in Overhead routing kit on page 86, which allows the power cablesinside the machine to be routed out through the top.

l Option 2: "Drop" the power cables down the hinge side, to the bottom, and routethem inside the machine.

The cables should be dressed to allow all doors to open freely, minimize cablecongestion, and provide access to components within the system.


Third party racks with vertical PDUs — RPQ Required 79

Requirements for third party racks with vertical PDUs (rear-facing)If using a rear-facing PDU within a third party rack, refer to the diagram below toensure that the rack and PDU combination are sufficient for the array.

Figure 27 Requirements for customer rack with rear-facing, vertical PDUs

Customer Rack with rear-facing non-EMC PDU, Top View

Rack

PostRear NEMAFront NEMA


Fro

nt

—Fro

nt

Door—

Rack

Post

Rack

Post

Rack

Postpw

pw Customer PDU

Customer PDU

Space required by enclosures

engine rails, and cable

management arms

j

—Rear D

oor—

e

a b c(24” (60.96 cm) min)

Min depth (k)

(43” (109.2 cm) min)

Re

ar

19

” N

EM

A(4

8.2

6 c

m)

d

2.5” (6.35 cm) (min)

fg

f

g

h i

Rack depth = a+b+c




c = distance between rear NEMA rails to exterior, rear surface of rack.



f = distance between inside surface of rack post and 19" (48.26cm) space required by rails,enclosures, and cable management arms. Minimum of 3" (7.62cm) is recommended.

Note: If no rack post, minimum recommended distance is measured to inside surface of rack.

g = width of rack post.

h = 19" (48.26 cm) + (2f)Min requirement = 25" (63.5 cm)

i = rack width (minimum)19" (48.26 cm) + (2f) + (2g)

Where:




l f = recommended minimum of 3" (7.62cm)

l g = rear rack post width (if any)

l pw + ½" (1.3cm) ≤ f+g

j ≥ 6" (15.24cm) is a requirement.Distance between rear-facing surface of vertical PDU and the rack post or any other parallel surfacethat may interfere with the power cables.

Note: Dimension k is dependent on this value.

k = min depth: b+cWhere:

l j ≥ 6" (15.24cm) is a requirement.

l IF j is ≥ 6" (15.24cm), min rack depth = 43" (109.2cm).

l IF j is < 6" (15.24cm), min rack depth = 43" (109.2cm) + distance required to make j ≥ 6"(15.24cm).

pw = PDU width


Requirements for third party racks with vertical PDUs (rear-facing) 81

Requirements for third party racks with vertical PDUs (inward-facing)If using a inward-facing PDU within a third party rack, refer to the diagram below toensure that the rack and PDU combination are sufficient for the array.

Figure 28 Requirements for third party rack with inward-facing, vertical PDUs

Rack with inward-facing non-EMC PDU, Top View

Rack

Post

Rear NEMA Front NEMA


Fro

nt

—Fro

nt

Door—

Rack

Post

Rack

Post

Rack

Post

Space required by enclosures

engine rails, and cable

management arms

PDU

pw

pd

a b(24” (60.96 cm) min)

d

2.5” (6.35 cm) (min)

(f)

19

” (4

8.2

6 c

m)+

(2

g)

min

e

—Rear D

oor—

Re

ar

19

” N

EM

A(4

8.2

6 c

m)

cbg

PDU

c

(h) 43” (109.2 cm) min

Min depth

Rack depth = a+b+c




c = distance between rear NEMA to exterior, rear surface of rack.

cb (Cable Bend) = 4" minimum (10.156 cm)



f = rack width: 19" (48.26cm) + (2g)(Min requirement for inward-facing vertical PDU)

g ≥ pd (PDU Depth) + cb (Cable Bend)




Note: PDU and connected cords cannot interfere with serviceability of system. This includesmaintenance of cable management arms.

h min depth: = b+c (43" (109.2cm) minimum)This is minimum space required for enclosures, engine rails, and cable management arms.

pd = PDU depth

pw = PDU width

Chassis to chassis groundingRack to rack chassis ground connections are strongly recommended to mitigate therisk of large AC power transients in the data center affecting system performance.Large AC power transients can occur from one or a combination of: electrical powergrid problems feeding a facility; weak facility grounding; powerful lightning stormstrikes; or facility power equipment failure. Mechanisms for tying racks together toprovide the ground connection can vary based on the rack provided by the customerand site facility preference.

P/N 106-562-209 is a rack to rack grounding kit for EMC racks. The grounding kitmay or may not work on racks provided by the customer due to the variety of groundlocation positions on racks.


Chassis to chassis grounding 83

CHAPTER 9

Optional kits


l Overhead routing kit.......................................................................................... 86l Dispersion kits....................................................................................................86l Securing kits...................................................................................................... 87l GridRunner kit and customer-supplied cable trough...........................................87

Optional kits 85

Overhead routing kitWhen installing an array in nonraised or raised floor environments, the host cablingand power is handled from overhead using the overhead cable routing kit.

Table 23 Overhead routing models

Model Description

E-TOP-KIT Top routing kit

Dispersion kitsEach dispersed system bay requires a dispersion kit specific to the bay number. Thedispersion kits include a 82 foot (25 m) optical cable and optics for the dispersedengine. When installing a dispersed layout, side skins (E-SKINS) are required.

The following table lists model numbers for new installations and upgrades.

Table 24 Dispersion kit model numbers

Model Description

E-DSOPTICE2 VMAX VG SYS BAY 2 DSP CBLOPTICS KIT

E-DSOPTICE2U VMAX VG SYS BAY 2 DSP CBLOPTICS KITUPG



E-DSOPTICE4 VMAX VG SYS BAY 3 DSP CBLOPTICS KITUPG










Optional kits


Securing kitsThe Securing Kits contain heavy brackets plus hardware used to attach the bracketsto the frames of the system bays. The brackets are attached to the floor using boltsthat engage the flooring substructure provided by the customer.

The EMC VMAX Securing Kit Installation Guide provides installation instructions.

Table 25 Securing kit models

Model Description

E-SECURE Secure kit for single bay

E-SECUREADD Secure kit for joining bays

GridRunner kit and customer-supplied cable trough

The EMC GridRunner™ bottom routing kit (E-BOT-KIT) and customer-supplied cabletroughs can help organize and protect subfloor cables that connect separated bays.GridRunners reduce the vertical drop of the dispersion cables, which may increase thedistance between the separated bays.

Each GridRunner supports the cable bundle above the subfloor. GridRunners areinstalled with brackets that attach to the stanchions under the raised floor. Thestanchions are up to one inch in diameter, measured at six inches (15.24 cm) belowthe raised tiles.

To ensure sufficient support of the cable bundle, a GridRunner should be installedevery two meters.

Table 26 Bottom routing model

Model Description

E-BOT-KIT a Bottom routing kit

a. GridRunner basket for supporting cables beneath the floor for dispersed bays.

Optional kits

Securing kits 87

Optional kits


APPENDIX A

Best Practices for AC Power Connections


l Best practices overview for AC power connections........................................... 90l Selecting the proper AC power connection procedure........................................91l Procedure A: Working with the customer's electrician onsite............................ 92l Procedure B: Verify and connect....................................................................... 99l Procedure C: Obtain customer verification.......................................................100l PDU labels........................................................................................................ 100l Ground the cabinet............................................................................................101l AC power specifications................................................................................... 103

Best Practices for AC Power Connections 89

Best practices overview for AC power connectionsTo assure fault tolerant power, external AC power must be supplied from independent,customer-supplied, power distribution units (PDUs) as shown in Figure 29 on page90.

NOTICE

For systems operating from three phase AC power, two independent and isolated ACpower sources are recommended for the two individual power zones in each rack ofthe system. This provides for the highest level of redundancy and system availability.If independent AC power is not available, there is a higher risk of data unavailabilityshould a power failure occur, including individual phase loss occurring in both powerzones.

NOTICE

Before connecting external AC power to EMC bays, verify that the bays have beenplaced in their final position as explained in the installation guide.

Figure 29 Two independent customer-supplied PDUs

Customer’sPDU 1

Customer’sPDU 2

Circuit breakerson (|)


Circuit breakers - Numbers

27

28

29

30


...

8

9

10

11

...

Power feed 1 Power feed 2



Selecting the proper AC power connection procedureThe EMC Customer Engineer must select the proper AC power connection procedure

There are three possible scenarios at the installation site regarding the connection ofcustomer AC power to the EMC array. The EMC Customer Engineer (CE) must selectthe proper AC power connection procedure for the scenario.

1. Refer to table below which summarizes the three possible scenarios at theinstallation site when you are about to connect external AC power to the EMCarray.

2. Select the procedure that applies to your situation and follow the instructions forthat procedure.

Table 27 Procedure options for AC power connection

If the scenario is... then use this procedure:

The customer’s electrician is available at the installation site. Aa, See: Procedure A: Working with the customer's electricianonsite on page 92

Access to customer-supplied, labeled, power cables (beneathraised floor or overhead).

(And the customer’s electrician is NOT available at theinstallation site.)

B, See: Procedure B: Verify and connect on page 99

Customer-supplied PDU source cables are already pluggedinto the EMC PDU and you have no access to the customer-supplied, labeled, power cables (beneath raised floor oroverhead).(And the customer’s electrician is NOT available at theinstallation site.)

C, See: Procedure C: Obtain customer verification on page100

a. Procedure A assures fault tolerant power in the EMC array.


Selecting the proper AC power connection procedure 91

Procedure A: Working with the customer's electrician onsiteUse this procedure if the customer’s electrician is available at the installation site.

This procedure requires three basic tasks that alternate between the customer'selectrician, the EMC CE and back to the customer's electrician.

l Task 1: Customer's electrician

l Task 2: EMC Customer Engineer (CE)

l Task 3: Customer's electrician



Procedure A, Task 1: Customer's electrician

NOTICE

This task is performed by the customer's electrician.

Procedure

1. Verify that the customer-supplied AC source voltage output on each customer-supplied PDU is within the AC power specification shown in AC powerspecifications on page 103. Measure the voltage output of each power cable asshown in Figure 30 on page 93.

2. Turn OFF all the relevant circuit breakers in customer-supplied PDU 1 andcustomer-supplied PDU 2.

3. Verify that the customer-supplied power cables connected to PDU 1 and PDU 2have no power as shown in Figure 31 on page 93.

Figure 30 Circuit breakers ON — AC power within specification

Customer’sPDU 1

Customer’sPDU 2




27

28

29

30


...

8

9

10

11

...

Labels on customer power lines

Power feed 1 Power feed 2

PDU 1CB 28

PDU 2

CB 9

Voltmeter

TYPE PM89 CLASS 25 01

0

100 240300V

Voltmeter


0

100 240300V

Figure 31 Circuit breakers OFF — No AC power

Customer’sPDU 1

Customer’sPDU 2

Circuit breakeroff (0)

Circuit breakeroff (0)Circuit breakers - Numbers

27

28

29

30


...

8

9

10

11

...

PDU 2

CB 9

PDU 1CB 28

Labels on customer power lines

Voltmeter


0

100 240300V

Voltmeter


0

100 240300V


Procedure A, Task 1: Customer's electrician 93

Procedure A, Task 2: EMC Customer EngineerBefore you begin

Before connecting power to the system, make sure that the power for both zone Aand zone B are turned OFF. This task is performed by the EMC Customer Engineer.

Figure 32 System bay power tee breakers (OFF = pulled out)

2

1

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

PDU PDU

System Bay (rear view)

Zo

ne

B

Zo

ne

A

12

34

56

12

34

56

Power zone B

Left side

Power zone A

Right side1

23

45

6

12

34

56

Zone A

Right side

Zone B

Left side

Power zone B

Left side

Power zone A

Right side

(With

re

ar

do

or

rem

ove

d)

(With

re

ar

do

or

)

ON OFF

12

34

56

12

34

56

Procedure

1. Confirm that the customer-supplied power cables are labeled and that eachlabel contains the relevant customer-supplied PDU and circuit breaker numbers.If power cables are not equipped with labels, alert the customer.

2. Compare the numbers on the customer-supplied power cables for each EMCbay to verify that power zone A and power zone B are powered by a differentcustomer-supplied PDU.

3. Do one of the following to connect power zone A and power zone B in each bay.If necessary, use the 15ft extension cords provided by EMC.

l For single-phase power: Connect customer-supplied PDU power cables tothe EMC bay by connecting to the bay's AC input cables for power zone Aand power zone B as shown below.



Figure 33 Connecting AC power, single-phase

Customer’s PDU 1

Zone B

AC input

cable B

15 ft. extension

cord options

Mating connector or

customer-supplied cable

Customer’s PDU 2

Zone A

AC input

cable A

15 ft. extension

cord options

Mating connector or


EMC-supplied power cable

and connector from the PDUCable connectors are shown

as they exit the bottom rear

of the bay.

Rear viewSystem bay

Zone B PDU

(Left)Zone A PDU

(Right)


and connector from the PDU

P1 P2 P3 P1 P2 P3P2 and P3 used

depending on

configuration

l For three-phase power: Connect customer-supplied PDU power cables tothe EMC bay by connecting to the bay's AC input cables for power zone Aand power zone B as shown below.


Procedure A, Task 2: EMC Customer Engineer 95

Figure 34 Connecting AC power, three-phase

Customer’s PDU 1

Zone B

AC input

cable B

15 ft. extension

cord options

Mating connector or


Customer’s PDU 2

Zone A

AC input

cable A

15 ft. extension

cord options

Mating connector or




Rear viewSystem bay

Zone B PDU

(Left)

Zone A PDU

(Right)



Zone B PDU

(Left)Zone A PDU

(Right)

Cable connectors are shown

as they exit the bottom rear

of the bay.

NOTICE

Do not connect EMC bay power zone A and power zone B to the samecustomer-supplied PDU. The customer will lose power redundancy and risk DataUnavailability (DU) if the PDU fails or is turned off during a maintenanceprocedure.



Figure 35 Power zone connections

:tnatropmIlaunam noitcurtsni ot refeR

Zone B Zone A

(Rear View)SYSTEM

Customer’s Power

Source 1

Circuit

Breakers

(CBs)

Zone B Zone A

(Rear View)SYSTEM

Customer’s Power

Source 1

Circuit

Breakers

(CBs)

Customer’s Power

Source 2

Circuit

Breakers

(CBs)

:tnatropmIlaunam noitcurtsni ot refeR

Zone B Zone A

(Rear View)SYSTEM

Customer’s Power

Source 1

Circuit

Breakers

(CBs)

Zone B Zone A

(Rear View)SYSTEM

Customer’s Power

Source 1

Circuit

Breakers

(CBs)

Customer’s Power

Source 2

Circuit

Breakers

(CBs)

046-001-749_01


Procedure A, Task 2: EMC Customer Engineer 97

Procedure A, Task 3: Customer's electrician

NOTICE

This task is performed by the customer's electrician.

Procedure

1. Working with the EMC Customer Engineer, turn ON all the relevant circuitbreakers in customer-supplied PDU 2.

Verify that only power supply and/or SPS LEDs in power zone A are ON orflashing green in every bay in the array.

Note

If all power supply and/or SPS LEDs in a bay are ON or flashing green, the bayis incorrectly wired because the AC power to both EMC power zones is suppliedby a single PDU, that is, customer-supplied PDU 2. Wiring must be correctedbefore moving on to the next step.

2. Turn OFF the relevant circuit breakers in customer-supplied PDU 2.

Verify that the power supply and/or SPS LEDs that turned green in theprevious step changed from green to OFF and/or flashing yellow. The yellowSPS lights flash for a maximum of 5 minutes.

Note

Note that power supplies connected to an SPS continue to have green lightsON while the SPS yellow light continues to flash indicating the SPS is providingon-battery power.

3. Repeat step 1 and step 2 for power zone B and customer-supplied PDU 1.

4. Turn ON all the relevant circuit breakers in customer-supplied PDU 1 andcustomer-supplied PDU 2.

5. Label the PDUs as described in PDU labels on page 100.



Procedure B: Verify and connectPerform this procedure if the two conditions listed below are true:

l Access to customer-supplied, labeled, power cables (beneath raised floor oroverhead).

l The customer's electrician is not available at the installation site.

This procedure requires the EMC Customer Engineer to verify that the customer'selectrician has complied with power specifications. Once verified, the EMC CustomerEngineer makes the required power connections overhead or under the floor.

Procedure

1. Have the customer verify that their electrician has complied with powerspecifications for voltage levels and redundancy. If the customer cannot verifythis, provide them with a copy of Procedure A. Inform the customer that theirarray may prematurely shut down in the event of a site power issue.

2. Access the labeled, power cables (beneath raised floor or overhead) to verifythat the customer-supplied power cables are properly labeled as shown in Figure 31 on page 93 and described in Procedure A, Task 2.

3. Compare the numbers on the customer-supplied power cables for each EMCbay to verify that power zone A and power zone B are powered by a differentcustomer-supplied PDU.

4. If power extension cables are required, connect them to power zone A andpower zone B in each bay.

5. Connect the customer-supplied power cables to EMC power zones as describedin Procedure A, Task 2.

6. Record the customer-supplied PDU information as described in Procedure A,Task 2.

7. Label the PDUs as described in PDU labels on page 100.


Procedure B: Verify and connect 99

Procedure C: Obtain customer verificationPerform this procedure if the three conditions listed below are true:

l The customer-supplied PDU source cables are already plugged into the EMC PDU.

l You have no access to the area below the raised floor.

l The customer's electrician is not available at the installation site.

Procedure

1. Have the customer verify that their electrician has complied with powerspecifications for voltage levels and redundancy. If the customer cannot verifythis, provide them with a copy of Procedure A. Inform the customer that theirarray may prematurely shut down in the event of a site power issue.

2. Record the customer-supplied PDU information (AC source voltage) asdescribed in step 1 of Procedure A, Task 1: Customer's electrician on page 93and label the PDUs as described in PDU labels on page 100.

PDU labelsBefore applying labels to the PDUs, one of the following procedures must have beencompleted:

l Procedure A: Working with the customer's electrician onsite on page 92

l Procedure B: Verify and connect on page 99

l Procedure C: Obtain customer verification on page 100

If necessary, see Selecting the proper AC power connection procedure on page 91 toselect the correct procedure.

PDU label part numbers

VMAX3 Family

Table 28 VMAX3 Family label part numbers, EMC racks

For... Use PN Description Location

All bays PN 046-001-750 LABEL: CUSTOMER 1P 3P PDU INFOWRITEABLE

OPEN ME FIRST, KIT, PN 106-887-026



Applying PDU labels, VMAX3 FamilyProcedure

1. For each bay, locate and complete the PDU label.

Note

For three-phase power, enter data only in the P1 column.

2. Place the label on the top surface of the PDU enclosure for side A and B.

Figure 36 PDU label , single-phase and three-phase

Customer PDU Information

Power Zone B

PDU

Panel

CB(s)

P1 P2 P3

Power Zone A

PDU

Panel

CB(s)

P1 P2 P3

Figure 37 Label placement— Customer PDU Information

Rear View

Zone A PDU labelZone B PDU label

Ground the cabinetEquipment correctly installed within the cabinet is grounded through the AC powercables and connectors. In general, supplemental grounding is not required.

If your site requires external grounding (for example, to a common grounding networkbeneath the site floor), you can use the grounding lugs provided on each of thecabinet’s bottom supports.


Applying PDU labels, VMAX3 Family 101

CL4827

046-003-3

50



AC power specifications

Table 29 Input power requirements - single-phase, North American, International, Australian

Specification North American 3-wireconnection(2 L & 1 G)a

International andAustralian 3-wireconnection(1 L & 1 N & 1 G)a

Input nominal voltage 200–240 VAC ± 10% L- Lnom

220–240 VAC ± 10% L- Nnom

Frequency 50–60 Hz 50–60 Hz

Circuit breakers 30 A 32 A

Power zones Two Two

Minimum power requirementsat customer site

l Three 30 A, single-phase drops per zone.

l Two power zones require 6 drops, each drop rated for 30A.

l PDU A and PDU B require three separate single-phase 30A drops for each PDU.

a. L = line or phase, N = neutral, G = ground


AC power specifications 103

Table 30 Input power requirements - three-phase, North American, International, Australian

Specification North American 4-wireconnection(3 L & 1 G)a

International 5-wireconnection(3 L & 1 N & 1 G)a

Input voltageb 200–240 VAC ± 10% L- Lnom

220–240 VAC ± 10% L- Nnom

Frequency 50–60 Hz 50–60 Hz

Circuit breakers 50 A 32 A

Power zones Two Two

Minimum power requirementsat customer site

l Two 50 A, three-phasedrops per bay.

l PDU A and PDU B requireone separate three-phaseDelta 50 A drops foreach.

Two 32 A, three-phase dropsper bay.

a. L = line or phase, N = neutral, G = groundb. An imbalance of AC input currents may exist on the three-phase power source feeding the

array, depending on the configuration. The customer's electrician must be alerted to thispossible condition to balance the phase-by-phase loading conditions within the customer'sdata center.

