Hyper-V questions

[ADMaster]

Hello all,

I have a few Hyper-V questions.

I have a three host cluster on server 2016 with shared storage and I also run SCVMM on my SCCM box. Although I don’t use it that often, day to day tasks I just use the Hyper-V manager.

 

This morning I found a VM had moved itself to another host, looking at the logs this happened near the time I attempted to take a backup. I’m working on a script that will look at what VMs are on the machine and if they are in the list of machines to be backed up, then do so.

I use export-vm and 7zip then copy them off site. This is in addition to my normal backups with DPM. I do this once every month or two.

One of the VMs was stuck at 30% archiving all night. I killed the job and attempted the backup again only to find the VM was no longer on that host.

I looked through the event logs and found SCVMM moved it, but I didn’t see a reason for the move.

 

How much compression should I expect with vhdx files? I’m running 7zip with max compression, but don’t know how much its helping. Unless I redo the archive step several times with each level. I’m hoping someone already has an idea.

 

I’ve also had some strange issues with checkpoints. From my W10 machine (1709) with Hyper-V manager I can create or revert to the most recent checkpoint. However I cannot see any checkpoints, that section is empty. If I log onto the host where the VM resides, I can see the checkpoints.

 

Thank you,