Silicon Graphics InfiniteStorage 4000 Series System Upgrade Manual page 31

Chapter 2: Upgrading Trays in the Storage Array
Figure 7 Controller A Position in the E2600 Controller-Drive Tray
3. Put on antistatic protection.
4. Label each cable that is attached to each controller canister so that you can
reconnect each cable correctly after the controller canisters are reinstalled.
ATTENTION Possible degraded performance – To prevent degraded performance,
do not twist, fold, pinch, or step on the fiber-optic cables. Do not bend the fiber-optic
cables tighter than a 5-cm (2-in.) radius.
5. Stop all host I/O operations.
6. Use one of the following options to place controller A offline.
SANtricity ES
Command line interface
ATTENTION Possible data loss or corruption – Wait for the blue Controller
Service Action Allowed LED on controller A to come on before you turn off the power
to either controller; otherwise, possible data loss or corruption might occur.
From the Hardware pane in the Array Management
Window, right-click the picture of the controller, and
select Advanced >> Place >> Offline.
Enter the following command on the command line:
smCLI
<DNS-network-name-or-IP-address> -c
"set controller [a]
availability=offline";
In this command,
<DNS-network-name-or-IP-address> is
the applicable address.
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