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Simplified Integration & Management in
Multi-Vendor SANs
Chauncey Schwartz
Senior Technical Marketing Manager
QLogic
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22
SNIA Legal Notice
The material contained in this tutorial is copyrighted by the SNIA unless otherwisenoted.
Member companies and individual members may use this material in presentationsand literature under the following conditions:
Any slide or slides used must be reproduced in their entirety withoutmodification
The SNIA must be acknowledged as the source of any material used in thebody of any document containing material from these presentations.
This presentation is a project of the SNIA Education Committee.
Neither the author nor the presenter is an attorney and nothing in thispresentation is intended to be, or should be construed as legal advice or an opinionof counsel. If you need legal advice or a legal opinion please contact your attorney.
The information presented herein represents the author's personal opinion andcurrent understanding of the relevant issues involved. The author, the presenter,and the SNIA do not assume any responsibility or liability for damages arising out ofany reliance on or use of this information.NO WARRANTIES, EXPRESS OR IMPLIED. USE AT YOUR OWN RISK.
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Abstract
Simplified Integration & Management in Multi-Vender
SANsSituation: Rapidly increasing requirements for storage,IT initiatives driving virtualization across all aspects ofthe infrastructure, cloud-enabling the environmentProblem Statement: Data Center Managers face afundamental task in figuring out how to integrate SANenvironments over multi-vender and multi-protocolinfrastructures.
Resolution: This session will review methods toconnect together multi-vendor SANs without loosingmanagement function and cost while increasing multi-vender interoperability.
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Learning Objectives
Learning Objective 1: Become familiarwith the terminology relating toTransparent SAN technologies
Learning Objective 2: Understand the solution setsand challenges inherent in integrating a multi-venderSAN infrastructure
Learning Objective 3: Evaluate the potential solutionsfor integrating multi-protocol and multi-vender SANinfrastructures
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Agenda
Connections and PortOverview
Issues and Responses
Virtualization
Blade Enclosures
Potential Use Cases
Sample Setup of Virtual
Switch
5
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Connections and Port Overview
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F_Port
N_Port
E_Port
N_Port
N_Port N_Port
F_PortE_Port
Inter-Switch Link
Traditional Interconnect Port Types
TraditionalF_Port
N_Port
E_Port
Relationship1:1
1 N_Port =
1 WWN
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Issues and Responses
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The Issue Part 1 – Virtualization
1:1 relationship becomesinadequate
Need a method to develop
a many virtual to one
physical port relationship
N_Port ID Virtualization
(NPIV)
NPIV allows a single physicalN_Port to register multiple
World Wide Port Names
(WWPNs) and V-N_Port
identification numbers.9
N_Port
The Issue
VM1
VM2
VMn
1 ID
WWWN1
V-N_Port
The Answer Part 1
VM1
VM2
VMnn IDs
WWWN1
WWWN2
WWWNn
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The Issue Part 2 – Blade Servers
Blade servers increase server density resulting in theneed for switch port aggregation capability
Blade switch module to consolidate blade servers to
external SAN switches (top of rack role)
Concern for domain ID limit of 239
10
Blades
Many
HBA
Ports
F _P or t s
E_Port
Domain ID Domain ID
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The Answer Part 2 – Switch
Virtualization
Extend the idea of NPIV to the fabric (F_Port level)
Multiple approaches to switch NPIV were developedBrocade’s access gateway
Cisco’s N_Port virtualization
QLogic’s transparent routing
Transparent switch for blade server racks (all FC switch vendors)
11
F_PortDomain ID
N_Port
Existing
SAN
F_Port
F_Port
N_Port
N_Port
Transparent Architecture
Domain ID
Existing
SAN
F_Port
N_Port
N_Port
Looks like this to Existing SANManage End Points As Normal
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Considerations for NPIV on Switch
Address potential domain ID limit
(239)Multi-vendor fabric without loss of
management or function
Manage end points as normal
Support both new SAN management
and transparent integration to
existing SAN
Granularity strategy – per port orwhole switch transparent
Cost effective transition to new
technologies12
Ch t i ti f T t Bl d
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Characteristic of Transparent Blade
Switch
SAN connectivity as a N_Port
Does not have constraints of FC switchDoman proliferation
Interoperability – avoids reduced feature set likely required in
multivendor networks
All ports are transparent to fabricMany to one multiplexing
All or none approach
13
Blades
Many
HBA
Ports
F _P or t s
N_Port
Ch t i ti f E t l Vi t l
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Characteristic of External Virtual
Switches
SAN connectivity as a N_PortDoes not have constraints of FC switch
Doman proliferation
Interoperability – avoids reduced feature set likely required in
multivendor networks
Granularity varies by vendor
All or none
Port level
14
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External Virtual Switch Granularity
All ports or none approach
Reduces domain ID consumptionLocal communication requires hairpin through fabric
Port level approach
Reduces domain ID consumption
Flexible use of other ports
15
F_PortF_Port
Domain ID
N_Port
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Benefits of Virtualizing The Switch
Reduce number of domain-id’sneeded (max 239)
Provide heterogeneous multi-vendor switch fabrics
without loss of management or function
More interoperable than switch-to-switch functions
Simplify connection of blade servers to external
fabrics
A NPIV transparent switch is less expensive than a
full-function switch
Manage end points as normal16
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Virtual Switch Possible Use Cases
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Use Case 1: Migrate to the latest technology
Upgrade legacy 2 Gbps and 4 Gbps SANsNPIV and Virtual Switch for heterogeneous SAN attach
Keep existing services running while bringing new systems online
Ability to share resources across SANs without disruption improves cost-effectiveness
8GbpsSAN
Servers
(HBAs)
ActiveLegacy
SAN
Array
Servers (HBAs)
ArrayVirtual Switch
between SANs
New
switch(s)
Existing
switch(s)
18
Domain ID
Existing
SAN
F_Port
N_Port
N_Port
Looks like this to Existing SAN
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Use Case 2: Backup SAN uti lizing TR
Virtual
switch(s)
Backup SAN
BackupServers
Primary DataCenter
Virtual Switch
to Backup
SAN
Backup
storage
Arrays
Servers
(HBAs)
Arrays
Existing
fabric
SAN accessed for dedicated and secure backup
No disruption to existing fabric or LAN
Improved fault tolerance
19
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QLogicswitch(s)
Departmental SAN
Arrays
Primary Data Center
Virtual Switch
to
Corporate
SAN
Servers(HBAs)
Storage
Arrays (New Finance SAN)
Use Case 3: Departmental build-out
Brocade orCisco
fabric
(Existing fabrics)
Build and manage a new
departmental fabric inexpensively
Seamless, non-disruptive connection to existing
fabrics.
Simplify server upgrades and replacement.
20
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Sample Setup of Virtual Switch
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1 S t th QL i t t t “ TR”
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SB5800 TR port #3
Brocade name server
1. Set the QLogic port type to “ TR”
(QuickTools or CLI)
Port is displayed as
TR_port.
N
QLogic TR_port logs in
as an “N_port” on the
Brocade switch and is
displayed in the Brocade
name server.
Sharing will not yet
occur – devices must be
mapped.
“I see a
new
N_port”
23
2 Map Devices (4 clicks in
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2. Map Devices (4 clicks inTR Mapping Manager)
(1, 2) Select storage or
server devices from the
QLogic and Brocade fabrics
that you wish to share.
(3) Select a configured TRport for those devices to
use.
(4) Click OK.
Devices
attached
to QLogic
switch
Devices on
Brocade
fabric
Avai lable
TR ports
on QLogic
switch
12
3
4
24
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3. Zoning method for both fabrics
Brocade
Zones must also be created on
the remote fabric before
devices can communicate.
Inter-fabric zones are
automatically created on theQLogic switch.
Wizard generates zoning
commands for the remote
fabric which can be easily
copied/pasted directly into theremote fabric management
tools.
25
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Discussion and Questions
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Attribution & Feedback
Please send any questions or comments regarding this SNIA Tutorial to
The SNIA Education Committee would like to thank the
following individuals for their contributions to this Tutorial.
Authorship History
Chauncey Schwartz, QLogic 08/23/2012:
Updates:
Additional Contributors
Marty Holmes, QLogic