Hi Jeremy, As Jithin said, the request might be timing out. Currently it takes the timeout from cmds.timeout in agent.properties (7200 default - which means 2 hours).
You can change the value, restart cloudstack-agent and try again. Thanks Abhisar On Mon, Feb 9, 2026, 9:35 AM Jithin Raju <[email protected]> wrote: > Hi Jeremy, > > Can you check the backup async jobs log? It may be a timeout issue. > Enable debug verbosity in the KVM agent : $sed -i 's/INFO/DEBUG/g' > /etc/cloudstack/agent/log4j-cloud.xml > > > -Jithin > > From: Jeremy Hansen <[email protected]> > Date: Saturday, 7 February 2026 at 3:53 AM > To: [email protected] <[email protected]> > Subject: Re: Issue with backups on large data volumes > > I was able to do a couple instances with 100G data volumes and it worked > fine but this one instance witht he 512G volume fails. > > -jeremy > > > > > On Friday, Feb 06, 2026 at 1:27 PM, Jeremy Hansen <[email protected] > <mailto:[email protected]>> wrote: > I’m trying to work through the new backup features in 4.22. Instances > with no data disk seem to work well, but I have a few instances with very > large data disks and for some reason, the backup just disappears from “In > Progress” and the data disk never completes. I tried twice on the same > instance and the data disk seems to stop at the same byte count. > > i-4-65-VM]# du -sk */* > 65792 > 2026.02.06.08.11.44/datadisk.aab61212-c1df-48c7-9abc-3d2a47d37468.qcow2 > 6 2026.02.06.08.11.44/domain-config.xml > 1 2026.02.06.08.11.44/domblklist.xml > 1 2026.02.06.08.11.44/domiflist.xml > 1 2026.02.06.08.11.44/dominfo.xml > 20974976 > 2026.02.06.08.11.44/root.8a60af8e-c138-4193-aece-a0bfe89a6fa3.qcow2 > 65792 > 2026.02.06.16.17.29/datadisk.aab61212-c1df-48c7-9abc-3d2a47d37468.qcow2 > 6 2026.02.06.16.17.29/domain-config.xml > 1 2026.02.06.16.17.29/domblklist.xml > 1 2026.02.06.16.17.29/domiflist.xml > 1 2026.02.06.16.17.29/dominfo.xml > 20974976 > 2026.02.06.16.17.29/root.8a60af8e-c138-4193-aece-a0bfe89a6fa3.qcow2 > > This instance’s data disk is a 512.00 GB volume on Ceph. > > Any info on this would be appreciated. I’m trying to use these backups to > restore to a different location. So far instances without a data disk work > fine. > > -jeremy > >
