Preparing For Replacement; Recording Critical Device And San Information - IBM Storage Networking SAN128B-6 Installation, Service And User Manual

information for these components before disconnecting the chassis from the network, fabric, and power to
begin removal procedures. After you reinstall components in the new chassis, follow exact procedures to
reconnect to the network, fabric and power, and then download firmware if necessary and verify system
operation and configuration.
Before beginning these procedures, perform the following tasks:
v Place the replacement chassis in close proximity to the old chassis.
v Provide a surface on which to place the old chassis, such as a second lift or the pallet originally
provided with the chassis.
v Obtain all tools and other materials listed below.
Attention: Refer to "Safety notices and labels" on page xi and "ESD precautions" on page xvi before
performing any removal or installation procedures.
Time and items required
The chassis replacement procedure takes approximately 1 hour to complete, depending on number of
SFPs and cables installed.
The following items are required for the chassis replacement procedure:
v Replacement chassis
v ESD grounding strap
v Phillips #2 screwdriver
v 1/4 in. straight slot screwdriver

Preparing for replacement

Before beginning replacement procedures you must run a series of Fabric OS commands and record
device information for safekeeping that may be required for installing and configuring the new chassis.
This includes information on licenses, IP address, WWN, serial numbers, switch ID, location of
configuration files, and fabric details. It also includes information that might be required by Technical
Support. "Recording critical device and SAN information" instructs you to run the following commands
and record specific output:
v supportShow
v configUpload
v configupload -vf
v ipAddrShow
v chassisShow
v nsShow
v nsAllShow
v switchShow
v fabricShow
v licenseShow
Before beginning replacement, you must also properly shut down the device and disconnect from the
fabric and power using procedures under "Powering down the switch" on page 75.

Recording critical device and SAN information

About this task
Perform the following steps. All commands must be entered from a CLI session (telnet or serial) to the
active CP blade unless otherwise indicated.
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SAN128B-6 Installation, Service, and User Guide