Compaq StorageWorks SAN Switch 2 EL User manual

b
StorageWorks by Compaq
Fibre Channel SAN Switch 2/8 EL
Installation Guide
Part Number: AA-RSB6A-TE
First Edition (April 2002)
Product Version: 3.0.2
This installation guide provides procedures for setting up,
configuring, and managing the SAN Switch 2/8 EL.

© 2002 Compaq Information Technologies Group, L.P.
Compaq, the Compaq logo, and StorageWorks are trademarks of Compaq Information Technologies
Group, L.P. in the U.S. and/or other countries.
Microsoft, Windows, and Windows NT are trademarks of Microsoft Corporation in the U.S. and/or other
countries.
All other product names mentioned herein may be trademarks of their respective companies.
Confidential computer software. Valid license from Compaq required for possession, use or copying.
Consistent with FAR 12.211 and 12.212, Commercial Computer Software, Computer Software
Documentation, and Technical Data for Commercial Items are licensed to the U.S. Government under
vendor's standard commercial license.
Compaq shall not be liable for technical or editorial errors or omissions contained herein. The
information is provided “as is” without warranty of any kind and is subject to change without notice. The
warranties for Compaq products are set forth in the express limited warranty statements accompanying
such products. Nothing herein should be construed as constituting an additional warranty.
Compaq service tool software, including associated documentation, is the property of and contains
confidential technology of Compaq Computer Corporation or its affiliates. Service customer is hereby
licensed to use the software only for activities directly relating to the delivery of, and only during the term
of, the applicable services delivered by Compaq or its authorized service provider. Customer may not
modify or reverse engineer, remove, or transfer the software or make the software or any resultant
diagnosis or system management data available to other parties without Compaq’s or its authorized
service provider’s consent. Upon termination of the services, customer will, at Compaq’s or its service
provider’s option, destroy or return the software and associated documentation in its possession.
Printed in the U.S.A.
Fibre Channel SAN Switch 2/8 EL Installation Guide
First Edition (April 2002)
Part Number: AA-RSB6A-TE

Fibre Channel SAN Switch 2/8 EL Installation Guide iii
Contents
About this Guide
Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Document Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Symbols in Text . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xi
Symbols on Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
Rack Stability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
Getting Help. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
Compaq Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
Compaq Website . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
Compaq Authorized Reseller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
1Overview
SAN Switch 2/8 EL Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1
Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1
Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
SAN Switch 2/8 EL Front Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
Optical Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
ISL Trunking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
SFPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4
SAN Switch 2/8 EL Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4
2 Installing the Fibre Channel SAN Switch 2/8 EL
Important Information about the Four Switch Limitation . . . . . . . . . . . . . . . . . . . . . . . 2–1
Check the License Installed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
Four Switch Limitation Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
Four Switch Limitation CLI Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
Four Switch Limitation Web Tools Error Messages . . . . . . . . . . . . . . . . . . . . 2–3

iv Fibre Channel SAN Switch 2/8 EL Installation Guide
Contents
Violation Timer Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–4
Additional Alerts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–4
Four Switch Limitation Workarounds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–5
Unpack and Verify Carton Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–6
Installation and Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–7
Selecting an Operating Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–8
Cooling Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–8
Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–8
Installing the Switch as a Stand-alone Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–9
Installing the SAN Switch 2/8 EL in a 9000 Series Rack . . . . . . . . . . . . . . . . . . . . . . 2–10
Installing the Fixed Rail Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–10
Power On Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–13
Checking POST Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–13
Configuring SAN Switch 2/8 EL Network Addressing . . . . . . . . . . . . . . . . . . . . . . . . 2–14
Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–14
Setting Network Addresses via a Serial Connection . . . . . . . . . . . . . . . . . . . . . . . 2–14
Connecting the SAN Switch 2/8 EL to the LAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–17
Modifying Domain IDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–18
Specifying Custom Status Policies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–18
Installing an SFP Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–19
Verifying Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–20
Installing Multiple Switches into an Existing SAN . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–20
Cascading Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–21
3 Managing the Fibre Channel SAN Switch 2/8 EL
Interpreting LED Activity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–1
Front Panel LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2
Rear Panel LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–5
Management Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–6
Optional Management Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–6
QuickLoop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–6
Fabric Watch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–7
Advanced Performance Monitoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–7
Extended Fabrics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–7
ISL Trunking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–8
Displaying the Optional Feature Licenses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–8
Enabling Licensed Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–8

Contents
Fibre Channel SAN Switch 2/8 EL Installation Guide v
Running Basic Switch Operations Using Telnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–9
Logging into the SAN Switch 2/8 EL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–9
Changing the Admin Password and User ID. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–9
Configuring the IP and Fibre Channel Address. . . . . . . . . . . . . . . . . . . . . . . . . . . 3–10
Displaying Devices within the Fabric . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–11
Checking the Firmware Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–11
Setting the Switch Date and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–11
Displaying Switch Configuration Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–12
SAN Switch 2/8 EL Diagnostic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–12
Interpreting POST Results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–12
Diagnostic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–13
4 Backing Up Configuration Data and Upgrading Firmware
Backing Up System Configuration Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–1
Restoring the System Configuration Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2
Upgrading or Restoring the Switch Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2
Downloading Firmware from the Compaq Website . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–3
A Regulatory Compliance Notices
Regulatory Compliance Identification Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–1
Federal Communications Commission Notice. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–1
Class A Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–2
Class B Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–2
Declaration of Conformity for Products Marked with the
FCC Logo—United States Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–3
Modifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–3
Network and Serial Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–3
Canadian Notice (Avis Canadien) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–4
Class A Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–4
Class B Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–4
European Union Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–4
Japanese Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–5
Taiwanese Notice. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–5
Laser Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–5

vi Fibre Channel SAN Switch 2/8 EL Installation Guide
Contents
Laser Safety Warnings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–6
Compliance with CDRH Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–6
Compliance with International Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . A–6
Laser Product Label. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–6
Laser Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–7
Battery Replacement Notice. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–7
B Electrostatic Discharge
Grounding Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–1
C Technical Specifications
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–2
Power Supply Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–2
Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–3
Memory Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–3
Serial Port Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–4
Glossary
Index
Figures
1–1 SAN Switch 2/8 EL front panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
1–2 SAN Switch 2/8 EL rear panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4
2–1 Four switch limitation Web Tools error message . . . . . . . . . . . . . . . . . . . . . . . 2–3
2–2 Full Fabric license install prompt in Web Tools . . . . . . . . . . . . . . . . . . . . . . . . 2–3
2–3 Carton contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–6
2–4 Attaching the Fixed Rack Mount Kit rails to the switch . . . . . . . . . . . . . . . . . 2–11
2–5 Connecting the power cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–12
2–6 Connecting the Serial cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–15
2–7 Connecting the Ethernet cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–17
2–8 Installing an SFP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–19
Tables
1 Document Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
2–1 Shipping Carton Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–7
3–1 Front Panel LED Patterns During Normal Operation . . . . . . . . . . . . . . . . . . . . 3–2
3–2 Rear Panel LED Patterns During Normal Operation. . . . . . . . . . . . . . . . . . . . . 3–5

Contents
Fibre Channel SAN Switch 2/8 EL Installation Guide vii
C–1 Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–2
C–2 Power Supply Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–2
C–3 Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–3
C–4 Cabling Pinouts if Pin 7 is Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–4

Fibre Channel SAN Switch 2/8 EL Installation Guide ix
About this Guide
This installation guide provides information to help you:
• Install the StorageWorks™ Fibre Channel SAN Switch 2/8 EL by Compaq in a
Compaq 9000 Series rack
• Set network addresses
• Backup and restore the configuration
• Upgrade firmware
Intended Audience
This book is intended for use by system administrators and technicians who are
experienced with the following:
• Storage Area Network (SAN) technology
• Fibre Channel technology
• Managing devices in a SAN.

About this Guide
xFibre Channel SAN Switch 2/8 EL Installation Guide
Related Documentation
In addition to this guide, Compaq provides the following corresponding information:
•StorageWorks by Compaq SAN Switch 2/8 EL Release Notes,
Part Number: AV-RSB7A-TE
•StorageWorks by Compaq Fabric OS Procedures User Guide,
Part Number: AA-RQ6EA-TE
•StorageWorks by Compaq Fabric OS Reference Guide,
Part Number: AA-RQ6FA-TE
•StorageWorks by Compaq Web Tools User Guide,
Part Number: AA-RQ6GA-TE
•StorageWorks by Compaq MIB Reference Guide,
Part Number: AA-RQ6HA-TE
•StorageWorks by Compaq ISL Trunking User Guide,
Part Number: AA-RR82A-TE
•StorageWorks by Compaq Advanced Performance Monitoring User Guide,
Part Number: AA-RR7UA-TE
•StorageWorks by Compaq Zoning User Guide,
Part Number: AA-RQ6YA-TE
•StorageWorks by Compaq QuickLoop User Guide,
Part Number: AA-RR7LA-TE
•StorageWorks by Compaq Extended Fabric User Guide,
Part Number: AA-RR7QA-TE
•StorageWorks by Compaq Fabric Watch Version User Guide,
Part Number: AA-RR7YA-TE

About this Guide
Fibre Channel SAN Switch 2/8 EL Installation Guide xi
Document Conventions
The conventions included in Table 1 apply in most cases.
Symbols in Text
These symbols may be found in the text of this guide. They have the following
meanings.
WARNING: Text set off in this manner indicates that failure to follow directions
in the warning could result in bodily harm or loss of life.
CAUTION: Text set off in this manner indicates that failure to follow directions could
result in damage to equipment or data.
IMPORTANT: Text set off in this manner presents clarifying information or specific instructions.
NOTE: Text set off in this manner presents commentary, sidelights, or interesting points of
information.
Table 1: Document Conventions
Element Convention
Key names, menu items, buttons,
and dialog box titles
Bold
File names and application names Italics
User input, command names, system
responses (output and messages)
Monospace font
COMMAND NAMES are uppercase
unless they are case sensitive
Variables Monospace, italic font
Website addresses Sans serif font (http://www.compaq.com)

About this Guide
xii Fibre Channel SAN Switch 2/8 EL Installation Guide
Symbols on Equipment
Any enclosed surface or area of the equipment marked with these
symbols indicates the presence of electrical shock hazards. Enclosed
area contains no operator serviceable parts.
WARNING: To reduce the risk of injury from electrical shock hazards, do
not open this enclosure.
Any RJ-45 receptacle marked with these symbols indicates a network
interface connection.
WARNING: To reduce the risk of electrical shock, fire, or damage to the
equipment, do not plug telephone or telecommunications connectors into
this receptacle.
Any surface or area of the equipment marked with these symbols
indicates the presence of a hot surface or hot component. Contact with
this surface could result in injury.
WARNING: To reduce the risk of injury from a hot component, allow the
surface to cool before touching.
Power supplies or systems marked with these symbols indicate the
presence of multiple sources of power.
WARNING: To reduce the risk of injury from electrical shock,
remove all power cords to completely disconnect power from the
power supplies and systems.
Any product or assembly marked with these symbols indicates that the
component exceeds the recommended weight for one individual to
handle safely.
WARNING: To reduce the risk of personal injury or damage to the
equipment, observe local occupational health and safety requirements
and guidelines for manually handling material.

About this Guide
Fibre Channel SAN Switch 2/8 EL Installation Guide xiii
Rack Stability
WARNING: To reduce the risk of personal injury or damage to the equipment, be
sure that:
• The leveling jacks are extended to the floor.
• The full weight of the rack rests on the leveling jacks.
• In single rack installations, the stabilizing feet are attached to the rack.
• In multiple rack installations, the racks are coupled.
• Only one rack component is extended at any time. A rack may become
unstable if more than one rack component is extended for any reason.
Getting Help
If you still have a question after reading this guide, contact service representatives or
visit our website.
Compaq Technical Support
In North America, call Compaq technical support at 1-800-OK-COMPAQ, available
24 hours a day, 7 days a week.
NOTE: For continuous quality improvement, calls may be recorded or monitored.
Outside North America, call Compaq technical support at the nearest location.
Telephone numbers for worldwide technical support are listed on the Compaq
website: http://www.compaq.com.
Be sure to have the following information available before calling:
• Technical support registration number (if applicable)
• Product serial numbers
• Product model names and numbers
• Applicable error messages
• Operating system type and revision level
• Detailed, specific questions

About this Guide
xiv Fibre Channel SAN Switch 2/8 EL Installation Guide
Compaq Website
The Compaq website has the latest information on this product, as well as the latest
drivers. Access the Compaq website at: http://www.compaq.com/storage. From this
website, select the appropriate product or solution.
Compaq Authorized Reseller
For the name of your nearest Compaq Authorized Reseller:
• In the United States, call 1-800-345-1518.
• In Canada, call 1-800-263-5868.
• Elsewhere, see the Compaq website for locations and telephone numbers.

Fibre Channel SAN Switch 2/8 EL Installation Guide 1–1
1
Overview
The StorageWorks Fibre Channel SAN Switch 2/8 EL by Compaq is a
high-performance, 8-port, 2 gigabit (Gb) Fibre Channel switch used to interconnect
storage devices, hosts, and servers in a Storage Area Network (SAN).
This chapter provides the following information:
• Features
• Firmware and hardware summaries
SAN Switch 2/8 EL Features
Read the following sections for feature-specific information.
Firmware
The SAN Switch 2/8 EL operates using Fabric Operating System firmware Version
3.0.2. The firmware supports:
• High-speed data traffic using Interswitch Link (ISL) trunking technology.
• Automatic re-routing through the Fabric Shortest Path First (FSPF) algorithm.
• Application Programming Interface (API); a protocol that allows applications to
interface with switch services.
• Zoning functionality, provides a means to allocate storage controllers to groups of
computers. Allows you to create logical subsets of the fabric to accommodate
closed user groups or to create functional user groups within a fabric.
For more information refer to the StorageWorks by Compaq Zoning User Guide,
Part Number AA-RQ6YA-TE.
• Per port statistics help technicians diagnose and isolate problem ports without
disrupting switch operations.

1–2 Fibre Channel SAN Switch 2/8 EL Installation Guide
Overview
• Error detections and fault isolation, automatically disables failing ports and
restarts when the problem is resolved.
• Industry standard Simple Network Management Protocol (SNMP) Management
Information Base (MIB) support.
• Automatic self-discovery, discovers and registers host server and storage devices.
• Web Tools provides a Graphical User Interface (GUI) to allow management of a
SAN from a browser such as Internet Explorer or Netscape.
Hardware
SAN Switch 2/8 EL consists of the following components:
• A 1 Unit (U) chassis, designed for mounting in a 19-inch rack, with forced-air
cooling that flows from the back of the switch to the front
• 8 optical ports, compatible with Small Form Factor Pluggable media (SFPs),
supplied by the customer
• One RS-232 Serial port (DB9 connector) on the front panel
• One IEEE compliant RJ-45 connector on the front panel for use with 10/100 Mbps
ethernet or in-band
• A total of 20 LEDs:
— One power switch LED on the front panel
— One port status LED for each of the eight ports on the front panel
— One port speed LED for each of the eight ports on the front panel
— One Ethernet speed LED on the front panel
— One Ethernet activity LED on the front panel
— One port readiness LED on the back panel
• Universal input power supply with AC switch
•Fivefans

Fibre Channel SAN Switch 2/8 EL Installation Guide 1–3
Overview
SAN Switch 2/8 EL Front Panel
Figure 1–1 shows the front panel of the SAN Switch 2/8 EL. The front panel houses
the Serial port, Ethernet port, eight fiber optic ports with corresponding LEDs, and the
power switch LED.
Figure 1–1: SAN Switch 2/8 EL front panel
Optical Ports
The Fibre Channel SAN Switch 2/8 EL optical ports support link speeds up to 2Gbps.
Each port automatically negotiates to the highest common speed of all devices
connected. Additionally, the switch supports F_port, FL_port, and E_port connections
and Distributed Name Server (DNS).
The ports are color-coded into two groups of four, to indicate which ports are used in
the same ISL Trunking group. Each port conforms to the American National
Standards Institute (ANSI) Fibre Channel, FC-PI specification for Fibre Channel SFP
transceivers.
ISL Trunking
ISL trunking is an optional Fabric OS feature that enables distribution of traffic over
the combined bandwidth of up to four ISLs between two directly adjacent switches,
while preserving in-order delivery. For specific information about ISL trunking, refer
to the StorageWorks by Compaq ISL Trunking User Guide, Part Number
AA-RR82A-TE.
1Serial Port
2Optical Ports (8)
3Port Status LEDs (8)
4Port Speed LEDs (8)
5Ethernet Speed LED
6Ethernet Activity LED
7Ethernet Port
8Switch Power LED
9Power Connector
SHR-2493A
3
89
4 5 6
2
7
1

1–4 Fibre Channel SAN Switch 2/8 EL Installation Guide
Overview
SFPs
The ports connect to SFP media. SFPs are universal and self-configuring.
SAN Switch 2/8 EL Rear Panel
Figure 1–2 shows the rear panel of the SAN Switch 2/8 EL. The rear panel houses the
five fans, and port readiness LED.
Figure 1–2: SAN Switch 2/8 EL rear panel
1Fan (5)
2Port Readiness LED
SHR-2494A
2
1

Fibre Channel SAN Switch 2/8 EL Installation Guide 2–1
2
Installing the Fibre Channel
SAN Switch 2/8 EL
This chapter covers the following topics:
• Important information about the four switch limitation
• Carton contents
• Installation and safety guidelines
• Installing the switch as a stand-alone unit or in a rack
• Configuring network addressing
• Installing an SFP module
• Installing multiple switches
• Cascading switches
Important Information about the Four
Switch Limitation
The SAN switch 8 EL and 16 EL shipping configurations integrate the
IV_Domain_Fabric license. The IV_Domain_Fabric license limits the number of
switches that can be connected to a single fabric to four. If more than four switches (of
any type) are added to the fabric where EL switches are installed, Web Tools generates
multiple error messages. Read the following sections for specific error messages and
workarounds related to the four switch limitation.
IMPORTANT: The 8 EL and 16 EL switches can be upgraded to full fabric support by installing
an optional upgrade license. See the “Four Switch Limitation Workarounds” section in this
chapter for instructions on how to purchase the Full Fabric license.

2–2 Fibre Channel SAN Switch 2/8 EL Installation Guide
Installing the Fibre Channel SAN Switch 2/8 EL
Check the License Installed
To verify the switch’s current license use the telnet command:
license show
You do not have to delete the IV_Domain_Fabric license before upgrading to the Full
Fabric license.
Four Switch Limitation Errors
The following section summarizes the error messages generated when more than four
switches are installed in a fabric with the 8 EL or 16 EL.
IMPORTANT: An operator can create a SAN with an 8 EL or 16 EL switch by upgrading the
switches to full fabric. To upgrade, you must install the optional Full Fabric license on each 8 EL
or 16 EL switch. See the “Four Switch Limitation Workarounds” section in this chapter for
instructions on how to purchase the Full Fabric license.
Four Switch Limitation CLI Error Messages
If the fabric detects that the four switch limitation has been exceeded, the following
message occurs every thirty seconds, via the Command Line Interface (CLI), as
follows:
CRITICAL FABRIC-SIZE_EXCEEDED, 1, Critical fabric size <8> exceeds
supported configuration <4>. Switch status marginal. Contact
Technical Support.
WebTool will be disabled in 39 days 8 hours and 46 minutes.
The switch warning messages may be stored in the Syslog. Third party application
SNMP traps may be configured on the switch.