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Install and maintain

Requirements to replace the controller - FAS50

Contributors netapp-lisa netapp-jsnyder
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Before replacing the controller in your FAS50 storage 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 and considerations for the controller replacement procedure.

Requirements

  • All shelves must be working properly.

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

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

  • You must replace a controller with a controller of the same model type. You cannot upgrade your system by just replacing the controller.

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

  • You must always capture the controller's console output to a text log file.

    The console output provides you with a record of the procedure you can use to troubleshoot issues you might encounter during the replacement process.

Considerations

It is important that you apply the commands in this procedure to the correct controller:

  • The impaired controller is the controller that is being replaced.

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

  • The healthy controller is the surviving controller.

What's next?

After you’ve reviewed the requirements to replace the impaired controller, you need to shut down the impaired controller.