Wednesday 18 February 2009

Update-StorageGroupCopy : This task can only be performed locally on the source or target computer.

Ever experienced the following?

Update-StorageGroupCopy : This task can only be performed locally on the source or target computer. Whilst you are logged on the passive node of an Exchange 2007 CCR cluster.




Well I did, we couldn't figure out why this kept failing.
Even opened a support call with PSS.
In the end we found out the reason why this was failing.


In a cluster configuration there are two type of owners:

  1. Preferred Owner which is set on cluster groups
  2. Possible Owner which is set to cluster resources

Now it turns out when you normally configure say a two node cluster, you configure one node to be the preferred owner and you set both nodes to be the possible owner.

Well not in a CCR cluster, you have to set both nodes to be the preferred owner.

You can change the order in which they are used but both nodes should be configured as preferred owner.Once we set the preferred owners everything worked fine.


unfortunately there is no event or tool that reports that the passive node is missing from the preferred owner tab hopefully this will be highlighted in future releases of EXBPA.