Use the Place Offline option to place a controller in an Offline state.
Note: This option is only available when the controller is online.
Caution:
How to Place a Controller Offline
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To take a controller offline, select it in the Physical View; then, select either the Controller >>Place Offline pull-down menu option, or Place Offline from the right-mouse pop-up menu. Result: The Confirm Place Offline dialog is displayed. |
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Select Yes. Result: The Place Offline operation begins. The controller icon changes to Needs Attention, Passive ![]() |
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If you do not have a multi-path driver installed on the application host, make the appropriate host operating system modifications so that the applications can recognize the new I/O path. |
Use the Place Online option to place the controller back online, making it available for I/O.
Note: This option is only available when the controller is offline.
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Select the offline controller in the Physical View; then, select either the Controller >>Place Online pull-down menu option, or Place Online from the right-mouse pop-up menu. Result: The Place Online option begins. The controller icons changes to Optimal, Passive ![]() |
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Use the Controller >> Change Mode option to change the controller to Active Mode. Result: The controller icon changes to Optimal, Active ![]() |
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Use the Storage Subsystem >> Redistribute Arrays to move the formerly owned logical drives back to this controller owner. |