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Yesterday I found some relatively new article from Symantec, dealing with the problem not being able to:
a) Backup DFSR Data by selecting the Shadow Copy Components
AND at the same time
b) Backup a Cluster via its Cluster Resource Name
Here's the Article: http://www.symantec.com/business/support/index?page=content&id=TECH164777
Problem
a) DFSR data should be backed up via the Shadow Copy Components.
b) Clustered servers should be backed up via their Cluster Resource Name.
Conclusion: Since the clustered resource name does not show shadow copy components, both of these best practices can not be followed.
Solution
There is an alternate way to backup the DFSR data and that is using the share name. The DFS shares will show under the cluster name. Selecting the shares will allow for the data to be backed up, however the security information on the folders will not be obtained. This should not be considered a disaster recovery solution. For disaster recovery, run an occasional backup of the shadow copy components on the active node in the cluster.
So the funny stuff is, the "Solution" is to back up DFSR Data by using the share names and lose every ACL and "from time to time" run some REAL backup, which isn't the supported way, because maybe you try to backup the wrong node.
I try to keep my anger down, but I have to admit that Symantec seems not to be able to provide working, supported and best practice solutions for Products which are more than 8 years old (DFSR).
What's your preferred method of backing up a DFSR Cluster?