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E-Series storage systems

Requirements to replace a controller - EF50 and EF80

Contributors netapp-lisa
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Before replacing the controller in your EF50 or EF80 storage system, ensure you meet the requirements for a successful replacement. This includes verifying you have a failed controller, verifying the state of your storage system, acquiring items for the procedure, and having a management station and browser to access SANtricity System Manager.

  • Verify that you have a failed controller. You can determine this in two ways:

    • The Recovery Guru in SANtricity System Manager directed you to replace the controller.

    • The amber Attention LED on the controller is on, indicating that the controller has a fault.

  • Verify that the following conditions of your storage system are true to ensure that you can replace the impaired controller while your storage system is powered on and performing host I/O operations:

    • The second controller in the chassis has Optimal status.

    • The OK to remove field in the Details area of the Recovery Guru in SANtricity System Manager displays Yes, indicating that it is safe to remove the impaired controller.

  • Make sure you have the following:

    • A replacement controller with the same part number as the controller you are replacing.

    • An ESD wristband, or you have taken other antistatic precautions.

    • A flat, static-free work surface.

    • Labels to identify each cable that you will be disconnecting from the controller.

    • A management station with a browser that can access SANtricity System Manager for the controller.

      You can open the SANtricity System Manager interface by pointing the browser to the controller’s domain name or IP address.

      Optionally, you can use the command line interface (CLI) to perform some of the procedures. Download the CLI package (zip file) using SANtricity System Manager: Settings > System > Add-ons and select Command Line Interface. You can then issue CLI commands from an operating system prompt, such as the DOS C: prompt.

What's next?

After meeting the requirements for the controller replacement, prepare for the controller replacement.