Silicon Graphics InfiniteStorage 4000 Series System Upgrade Manual page 37

Chapter 2: Upgrading Trays in the Storage Array
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.
Figure 15 Controller LEDs
7. Turn off the Power switch on each of the power-fan canisters, and wait until all
LED and seven-segment display activity on the rear of the controller-drive tray
has stopped.
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.
1. Controller Service Action Allowed LED (Blue)
2. Controller Service Action Required LED (Amber)
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