We have a two node failover hyperV cluster running with CSV. We can backup hyperv servers on one server, but not on the other. Network is working fine, and we can backup normal files from both servers. SCDPM server is W2008R2 with SCDPM 2012R2 UR6, both clients are 4.2.1312.0. A virtual server can be backuped on the first server, then we live migrate it to the other server. The same virtual server then fails to backup.
We get this message in the SCDPM console:
Recovery point creation jobs for Microsoft Hyper-V \Offline\server on server.cluster.domain.com have been failing. The number of failed recovery point creation jobs = 1.
If the data source protected has some dependent data sources (like a SharePoint Farm), then click on the Error Details to view the list of dependent data sources for which recovery point creation failed. (ID 3114)
An unexpected error occurred while the job was running. (ID 104 Details: Access is denied (0x80070005))
And at the same time, we get in the system eventlog the following DCOM event 10006 message:
DCOM got error "2147942405" from the computer xxxxx.domain.com when attempting to activate the server:
{DA6AA17A-D61C-4E9C-8CEA-DB25DEA52A95}
We backup only to disk. Normal backups of other servers are just working fine. The is no sharepoint farm on the server.
I tried changing the MSDTC rights (http://www.eventid.net/display-eventid-10006-source-DCOM-eventno-272-phase-1.htm), but that didn't solve it.
http://serverfault.com/questions/563088/dpm2010-windows-2012-dcom-errors-communicating-with-all-agents suggests to remove the node from the domain, and back again. This is not something I want to do because it might break the hyperv cluster, and I don't know how to fix that.
Do you have the same problem ? What actions did you do to solve this ?