Thursday, September 29, 2011 4:36 PM
I'm using DPM 2010 and Hyper-V. When I go to create a protection group there is no option for Backup using child partition snapshot for some of my servers. I've checked the Intergration versions on the host and the guest machines. The are different versions but we have some servers with diiferent versions that have the Backup using child partition available. I checked to see if the disk are dynamic and they're not. I have some servers that list the Backup using child partition option but once u drill down the check box is missing. I've also removed and re-installed the protection agent, still no go. Servers are 2008 R2. Any help would be appreciated. Thanks
Monday, October 03, 2011 9:22 PMModerator
For DPM 2010 to take an online backup of the virtual machine the virtual server must have VSS'es operational for its workload. For example, if your running an Exchange server virtually, the DPM agent on the stand-alone or cluster node Hyper-V host will make a "VSS request forward" from the host operating system to the virtual. Since Exchange have VSS'es written it could be backup online or also known as backup using child partition.
It's also importaint that you update the integration services.
Check out my DPM blog @ http://robertanddpm.blogspot.com
- Edited by Robert HedblomMVP, Moderator Monday, October 03, 2011 9:22 PM
Wednesday, January 25, 2012 12:00 AMModeratorIf the above suggested answer does not help in resolving the thread please re-open it.
Regards, Michael V [MSFT] - This posting is provided "AS IS" with no warranties, and confers no rights.
- Marked As Answer by Michael VargoMicrosoft Employee, Moderator Wednesday, January 25, 2012 12:00 AM
Monday, April 30, 2012 8:15 AM
excuse me i am face the same problems, which suggested u talked about it ?? and do u have any idea about the issue.
i appreciate your help please.
Monday, April 30, 2012 10:18 PMModerator
The TechNet content titled "Conditions When DPM Fails to Back up Hyper-V Virtual Machines in an Online State" at
http://technet.microsoft.com/en-us/library/dd637102.aspx lists the following reasons why online backups won't be available.
Backup (Volume Snapshot) Integration Service is disabled or not installed.
VM has one or more dynamic disks.
VM has one or more non-NTFS based volumes.
The VM Cluster Resource Group in a cluster setup is offline.
VM is not in a running state.
A ShadowStorage assignment of a volume inside the VM is explicitly set to a different volume other than itself.
Tuesday, May 01, 2012 8:54 AM