Technical data

Chapter 2: Upgrading Trays in the Storage Array 47
Figure 32 Controller Positions in the E5460 Controller-Drive Tray
1. Controller A
2. Controller B
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 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.