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Install and maintain

Requirements to replace the controller - AFF A70 and AFF A90

Contributors netapp-jsnyder netapp-lisa dougthomp
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Before replacing the controller of your AFF A70 or AFF A90 system, ensure you meet the necessary requirements for a successful replacement. This includes verifying all other components in the system are functioning properly, verifying that you have the correct replacement controller, and saving the controller's console output to a text log file.

Review the requirements for replacing the controller module.

  • All drive shelves must be working properly.

  • The healthy controller must be able to take over the controller being replaced (referred to in this procedure as the impaired controller).

  • Do not use this procedure for controller upgrades. Refer to Choose your controller hardware upgrade procedure for guidance.

  • If your system is in a MetroCluster configuration, review Choosing the correct recovery procedure to determine whether to use this procedure.

  • Replace the failed component with the field-replaceable unit (FRU) you received from NetApp.

  • Replace the controller module with a controller module of the same model type. You cannot upgrade your system by replacing the controller module.

  • You cannot change drives or drive shelves as part of this procedure.

  • The boot device is located on the System Management module installed in the back of the system. You do not need to move the boot device when replacing a controller module.

  • Understand the controller terminology used in this procedure:

    • The impaired controller is the controller being replaced.

    • The replacement controller is the new controller replacing the impaired controller.

    • The healthy controller is the surviving controller.

  • Capture the controller's console output to a text log file.

    This provides a record of the procedure to troubleshoot any issues during the replacement process.

What's next?

After you’ve the reviewed the requirements to replace your AFF A70 or AFF A90 controller, you need to shut down the impaired controller.