by Vitaliy S. » Mon Nov 17, 2014 4:43 pm people like this post
RGijsen wrote:I have this test setup available at any time, might you want to see this just contact me. Glad to help if I can.
Great post and good knowledge of how everything works in Hyper-V. Sorry for the late reply.
What you have just done is basically what Hyper-V VSS writer does when backing up VMs on the host. Unfortunately, this writer is not currently capable of doing the same VSS freeze for shared VHDX, which we are using for backing up Hyper-V VMs.
by foggy » Mon Dec 01, 2014 4:18 pm people like this post
It will be backed up twice, if nodes are backed up by different jobs. If they are in a single job, the disk will be snapshotted twice (within each node), however backed up with the first node only. The second node backup will contain differences for this disk between the snapshots.
by Vitaliy S. » Mon Feb 08, 2016 1:52 pm people like this post
Massimo, cannot make any forecasts on availability of this functionality, let's see what improvements a new version of Hyper-V will bring. Most VM image-level backup vendors cannot do backups of these VMs at all. One of the possible solutions would be, indeed, to run an in-guest script/agent to initiate VSS freeze during a VM-level backup job, though it would bring more complexity into overall backup job management.