Planning Guide, 100K, 200K, 400K

Click here to load reader

  • date post

    30-Dec-2016
  • Category

    Documents

  • view

    233
  • download

    2

Embed Size (px)

Transcript of Planning Guide, 100K, 200K, 400K

  • 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.

    THE INFORMATION IN THIS PUBLICATION IS PROVIDED AS-IS. DELL MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND

    WITH RESPECT TO THE INFORMATION IN THIS PUBLICATION, AND SPECIFICALLY DISCLAIMS IMPLIED WARRANTIES OF

    MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. USE, COPYING, AND DISTRIBUTION OF ANY DELL SOFTWARE DESCRIBED

    IN THIS PUBLICATION REQUIRES AN APPLICABLE SOFTWARE LICENSE.

    Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be the property of their respective owners.

    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

  • 5

    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

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

  • 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

    12345678910111213141516171819202122232425262728293031323334353637

    FIGURES

    Site Planning Guide VMAX 100K, VMAX 200K, VMAX 400K, with HYPERMAX OS 5

  • FIGURES

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

  • 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

    1234567891011121314151617181920212223242526272829

    30

    TABLES

    Site Planning Guide VMAX 100K, VMAX 200K, VMAX 400K, with HYPERMAX OS 7

  • TABLES

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

  • 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

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

  • 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.comhttps://support.emc.comhttps://support.emc.commailto:[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.

    HYPERMAX OS+ Q3 2016Service Pack

    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.

    HYPERMAX OS+ Q1 2016Service Pack

    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

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

  • 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

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

  • 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 customers 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, selectThird 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

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

  • 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

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

  • CHAPTER 2

    Delivery and transportation

    This chapter includes:

    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 customers 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.

    Delivery and transportation

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

  • 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.

    Delivery and transportation

    Shipping and storage environmental requirements 21

  • Delivery and transportation

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

  • CHAPTER 3

    Specifications

    This chapter includes:

    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

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

  • 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 at35C a

    Maximumtotal powerconsumption35C(kVA)

    Maximumheatdissipation35C(Btu/Hr)

    Maximumtotal powerconsumption35C(kVA)

    Maximumheatdissipation35C(Btu/Hr)

    Maximumtotal powerconsumption35C(kVA)

    Maximumheatdissipation35C(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 >35C reflect the higher power levels associated with both the battery rechargecycle, and the initiation of high ambient temperature adaptive cooling algorithms. Values at

  • 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 35C 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

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

  • 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

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

  • 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 2080% non condensing, however, therecommended operating environment range is 4055%. 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

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

  • 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

    Nominal68-72F(20-22C)

    Nominal40-55% RH

    Nominal 68-72F (20-22C)40-55% RH

    0-1 hour

    Cold

  • 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-OM3-3M LC-LC, 3 meter

    SYM-OM3-5M LC-LC, 5 meter

    SYM-OM3-10M LC-LC, 10 meter

    SYM-OM3-30M LC-LC, 30 meter

    SYM-OM3-50M LC-LC, 50 meter

    SYM-OM3-100M LC-LC, 100 meter

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

    SYM-OM4-3M LC- LC, 3 meter

    SYM-OM4-5M LC- LC, 5 meter

    SYM-OM4-10M LC- LC, 10 meter

    SYM-OM4-30M LC- LC, 30 meter

    SYM-OM4-50M LC- LC, 50 meter

    Specifications

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

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

    Model number Description

    SYM-OM4-100M LC- LC, 100 meter

    Specifications

    Open systems host and SRDF connectivity 33

  • Specifications

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

  • CHAPTER 4

    Data Center Safety and Remote Support

    This chapter includes:

    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 EMCs 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.

    Data Center Safety and Remote Support

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

  • 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.

    Data Center Safety and Remote Support

    Remote support 37

  • Data Center Safety and Remote Support

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

  • CHAPTER 5

    Physical weight and space

    This chapter includes:

    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 customers 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

    Physical weight and space

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

  • additional pedestal mounts relative to a cutout should be in accordance with thetile manufacturers 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 weight and space

    Physical space and weight 41

  • Physical weight and space

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

  • CHAPTER 6

    Position Bays

    This chapter includes:

    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

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

  • 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

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

  • 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

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

  • 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

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

  • 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

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

  • 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

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

  • CHAPTER 7

    Power cabling, cords and connectors

    This chapter includes:

    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

    Power cabling, cords and connectors

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

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

    Power cabling, cords and connectors

    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

    Power cabling, cords and connectors

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

  • 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

    Power cabling, cords and connectors

    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 cabling, cords and connectors

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

  • 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 customers 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 customers 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 cabling, cords and connectors

    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 customers 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 thecustomers 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).

    Power cabling, cords and connectors

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

  • 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

    Power cabling, cords and connectors

    Single-phase 63

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

    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

    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.

    Power cabling, cords and connectors

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

  • 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

    Power cord wiring diagram

    Color From To Signal

    BLK P1-X P2-X L

    WHT P1-Y P2-Y L

    GRN P1-G P2-G GND

    XY

    G

    L6-30R L6-30P

    Power cabling, cords and connectors

    Single-phase 65

  • Figure 17 Single-phase: E-PW40URUS

    P1 P2

    L6-30R 3750DP

    X Y

    G

    Color From To Signal

    BLK P1-X P2-L1 L

    WHT P1-Y P2-L2 N

    GRN P1-G P2-G GND

    Power cord wiring diagram

    L6-30R

    L1 L2

    G

    3750DP

    X Y

    G

    Color From To Signal

    BLK P1-X P2-L1 L

    WHT P1-Y P2-L2 L

    GRN P1-G P2-G GND

    Power cord wiring diagram

    L6-30R

    L1 L2

    G

    3750DP

    Figure 18 Single-phase: E-PW40UIEC3

    X Y

    G

    P1 P2

    L6-30R 332P6W

    G

    Y X

    Color From To Signal

    BRN P1-X P2-X L

    BLU P1-Y P2-Y N

    GRN/YEL P1-G P2-G GND

    X Y

    G

    Power cord wiring diagram

    L6-30R 332P6W

    X Y

    G

    Color From To Signal

    BLK P1-X P2-X L

    WHT P1-Y P2-Y L

    GRN/YEL P1-G P2-G GND

    Power cord wiring diagram

    L6-30R 332P6W

    G

    Y X

    G

    Y X

    Power cabling, cords and connectors

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

  • Figure 19 Single-phase: E-PW40UASTL

    P1 P2

    L6-30R

    CLIPSAL

    56PA332

    Color From To Signal

    BRN P1-X P2-AP L

    BLU P1-Y P2-N N

    GRN/YEL P1-G P2-E GND

    X Y

    G

    Power cord wiring diagram

    L6-30R 56PA332

    G

    Y X

    G

    Y X

    G

    Y X

    Color From To Signal

    BRN P1-X P2-AP L

    BLU P1-Y P2-N L

    GRN/YEL P1-G P2-E GND

    X Y

    G

    Power cord wiring diagram

    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

    Power cord wiring diagram

    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

    Power cord wiring diagram

    L6-30R L7-30P

    Power cabling, cords and connectors

    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)

    Plug on eachEMC powercorda

    EMC suppliedextension cordEMC modelnumberb

    EMC Power CableP/N

    EMC suppliedextension cordreceptacle (P1)connecting toEMC plug

    EMC suppliedextension cordplug (P2)connecting tocustomer PDUreceptacle

    Customer 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 -K52S30A orHubbell -C530C6S

    ABL Sursum -S52S30A orHubbell -C530P6S

    ABL Sursum -K52S30A orHubbell -C530C6S

    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.

    Power cabling, cords and connectors

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

  • 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

    Power cabling, cords and connectors

    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

    Power cabling, cords and connectors

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

  • 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)

    Plug on eachEMC powercorda

    EMC suppliedextension cordEMC modelnumberb

    EMC Power CableP/N

    EMC supplied

    extension cordreceptacle (P1)connecting toEMC plug

    EMC suppliedextension cordplug (P2)connecting tocustomer PDUreceptacle

    Customer PDUreceptacle

    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.

    Power cabling, cords and connectors

    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

    Power cord wiring diagram

    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

    Power cabling, cords and connectors

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

  • 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 suppliedextension cordEMC modelnumberb

    EMC PowerCable P/N

    EMC suppliedextension cordreceptacle (P1)connecting toEMC plug

    EMC suppliedextension cordplug (P2)connecting tocustomer PDUreceptacle

    Customer PDUreceptacle

    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.

    Power cabling, cords and connectors

    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

    Power cabling, cords and connectors

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

  • CHAPTER 8

    Third Party Racking Option

    This chapter includes:

    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.

    Third Party Racking Option

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

  • 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.

    Third Party Racking Option

    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