If you do NOT see your mirror(s) listed as Available Storage, they are NOT Highly Available –

Return to an elevated command prompt (on the Source) and proceed with the following 3 steps:

  1. cd %extmirrbase% (Shortcut to the DataKeeper Directory)
  1. emcmd . registerclustervolume (drive letter)
  1. Your output should reflect “Status = 0

Once mirror(s) are highly available using the steps above (if needed), return to Failover Cluster Manager\Storage\Disk. The mirror(s) should be listed as “Available Storage

Now you’re in a position to Create an Empty Role.

  1. Launch Failover Cluster Manager
  1. Right click on Roles and select “Create Empty Role

- A default role called “New Role” will be created

  1. Rename “New Role” to “DataKeeper Service
  1. Return to Storage\Disks…Available Storage
  1. Right click the Volume/Available Storage, More Actions, Assign to Another Role…
  1. Select the Role that you’ve created in Step 3 or in this instance, “DataKeeper Service

Note: The DataKeeper Mirror(s) has been assigned to the role you have created, thus the DataKeeper Volume(s) are now Highly Available.

This can be tested by:

  1. Right clicking the role/DataKeeper Service\Move\Select Node…
  1. Select any other servers/nodes available in your cluster, then OK.

Perform another Move to ensure the Role and its related resources/DataKeeper, switch back successfully.


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