Technical data

86
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.
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.
5. Use one of the following options to place controller A offline.
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 59 Controller LEDs
1. Host Link 1 Service Action Required LED (Amber)
2. Host Link 2 Service Action Required LED (Amber)
3. Battery Service Action Required LED (Amber)
4. Controller Service Action Allowed LED (Blue)
5. Controller Service Action Required LED (Amber)
SANtricity ES From the Hardware pane in the Array Management
Window, right-click the picture of the controller, and
select Advanced >> Place >> Offline.
Command line interface 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.