Product Documentation

Backing Up and Restoring Snapshots in an High Availability Pair

Oct 08, 2015

You can back up and restore snapshots in a high availability pair. To do so, you need to make sure the configuration on both App Controller virtual machines (VMs) is the same. You export the snapshot from the current, primary App Controller. Then, you shut down the secondary App Controller. Then, you import the snapshot to the primary node and restart App Controller.

To back up and restore snapshots in a high availability pair

  1. Export the snapshot from the current primary node in the pair.

    For more information, see To export a snapshot.

  2. Shut down the secondary node in the pair.
  3. Import the snapshot to the single master node.

    For more information, see To import a snapshot

  4. Restart App Controller.
  5. On the primary App Controller, log on to the command-line console and verify that the IP address is correct. If the IP address is correct, proceed to Step 7. If not, perform Step 6 and then Step 7.
  6. Disable high availability by using the command-line console.
    1. At the command prompt, type 1 to enter high availability.
    2. At the command prompt, type 3 and then press ENTER to disable high availability.
    3. Type y to confirm you want to disable high availability.
    4. At the command prompt, type 0 and then press ENTER to return to the main menu.
    5. At the command prompt, type 0 and then press ENTER to enter Express Setup.
    6. At the command prompt, type 1 and then press ENTER to configure the IP address and subnet mask.
    7. At the command prompt, type 5 and then press ENTER to save your changes.

      When you press ENTER, App Controller restarts. Log on to the command-line console again to complete the following steps.

    8. At the command prompt, type 0 and then press ENTER to return to the main menu.
    9. At the command prompt, type 1 and then press ENTER to enter high availability.
    10. At the command prompt, type 3 and then press ENTER to enable high availability.
    11. Type y to confirm you want to enable high availability.
  7. Start the secondary App Controller.

    When you start the secondary App Controller, both nodes in the high availability pair are synchronized.