I have a VM with a differencing VHD. the backup only show's as "offline" backup. I'm not able to get is "online". So when DPM perform the backup, it pauses the VM a little bit a it causes the application on it to slowdown/crash. 

I updated the Integration services from the Hyper-V host.

I've searched on the web for solutions, but nothing answers to this question so far...

Will DPM be able to make "online backup" of a VM with a differencing VHD?

Thank you!

Hi,

no, Hyper-V VM and Child Partition Snapshot or Online Backups needs a fixed size Disk.

more Explanations can be found here.

http://social.technet.microsoft.com/Forums/en-US/946ce05d-3276-4d8d-a8e5-d257d09ec7be/backup-using-child-partition-snapshot-and-differencing-disks?forum=dpmhypervbackup

Yes, DPM 2012 R2 will do online backups of VMs with a differencing VHD.  As well as installing/updating the integration services you must add a SCSI controller to the guest VM.  You do not need to configure the SCSI controller, just make sure one is added.

• Edited by StinkyMonkey 20 hours 57 minutes ago

Yes, DPM 2012 R2 will do online backups of VMs with a differencing VHD.  As well as installing/updating the integration services you must add a SCSI controller to the guest VM.  You do not need to configure the SCSI controller, just make sure one is added.

• Edited by StinkyMonkey Friday, April 17, 2015 10:43 AM

Yes, DPM 2012 R2 will do online backups of VMs with a differencing VHD.  As well as installing/updating the integration services you must add a SCSI controller to the guest VM.  You do not need to configure the SCSI controller, just make sure one is added.

• Edited by StinkyMonkey Friday, April 17, 2015 10:43 AM

Yes, DPM 2012 R2 will do online backups of VMs with a differencing VHD.  As well as installing/updating the integration services you must add a SCSI controller to the guest VM.  You do not need to configure the SCSI controller, just make sure one is added.

• Edited by StinkyMonkey Friday, April 17, 2015 10:43 AM