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Replace a controller

The following replacement procedure is based on the scenario that your storage array is a two-controller configuration. Each controller canister contains a controller card, a battery, and an optional host interface card (HIC). When you replace a controller canister, you must remove the battery and HIC, if one is installed, from the original controller canister, and install them in the replacement controller canister.

  1. Prepare to replace controller
    You prepare to replace a controller canister by verifying that the replacement controller canister has the correct FRU part number, backing up the configuration, and collecting support data. If the controller is still online, you must take it offline.
  2. Remove failed controller
    You remove a controller canister to replace the failed canister with a new one. Perform this task only if your storage array has two controllers.
  3. Install new controller
    You install a new controller canister to replace the failed one. Perform this task only if your storage array has two controllers.
  4. Complete controller replacement
    You complete the controller replacement by placing the controller online and confirming that the storage array is working correctly. Then, you can collect support data and resume operations.