Hi,
we're having an issue at a customer where the C: drive will fill up over the course of a day or 5 (fluctuates).
It's a 2012 R2 server with 4 VM's (Hyper-V) on it. 2 of the VM's are linux (ubuntu 18.04 to be precise). The back-ups have worked w/o issues for about a year, but recently C: has filled up to the point where it breaks 4 times now. Every time there's a bunch of {guid}{guid} files in System Volume Information. Last time it filled up entirely there were 650GB worth of them...
Can't find much on why they aren't removed automatically, would presume they should be removed automatically at least.
Can get around them by deleting them with diskshadow (vssadmin doesn't allow to remove them), but looking for something that makes more sense than scripting/scheduling that. Backup shouldn't fill up the drive to the point where things break.
Backups themselves go to external HDD (USB) btw. The D: drive doesn't fill up. D: is a SSD, some vhd(x) files of the VM's are on D: for performance. In fact I've never seen the size of System Volume Information on that drive pass 1MB.
Any ideas what might be causing this? Presume it's related to some windowsupdate installed 1,5-2 months ago.
We only back-up the Hyper-V part by the way. Shadow copies aren't enabled and from what I understand servers don't support system restore points.
