Error message:

Log Name: System
Source: Microsoft-Windows-FailoverClustering
Date: 2/12/2020 6:14:29 PM
Event ID: 1205
Task Category: Resource Control Manager
Level: Error
Computer: servername.FQDN


The Cluster service failed to bring clustered ‘Role’ completely online or offline. One or more resources may be in a failed state. This may impact the availability of the clustered role.

Suggested Action:

  1. From the Source node, Export the registry key to a location on the Target node
    • You can find the registry key here: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ExtMirr\Parameters\Jobs
  2. On the Target node, select the exported key
  3. Right click and select Merge; just say “Yes” to the Registry Editor dialog box(es)
  4. Verify the key(s) are present in the Registry . . .
    • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ExtMirr\Parameters\Jobs
  5. Return to your Failover Cluster Manager and attempt another move of your Role(s)
  6. Once completed, Perform a full-resync.

This will ensure that the configurations for the mirrors are identical on the Source/Target(s) and are available for switchover in Windows Server Failover Cluster (WSFC).

Note: The end user MAY be able to fail back to the original Source and all Roles and Resource resume an Online status. If this action is performed, a full-resync must be performed.


Was this helpful?

Yes No
You indicated this topic was not helpful to you ...
Could you please leave a comment telling us why? Thank you!
Thanks for your feedback.

Post your comment on this topic.

Post Comment