Backups started to fail again (overall status: failure, but both snapshot and transfer returns success)
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@marcoi I've definitely been through all those steps before, but I'll try it again. The VM in question is a test machine I built specifically for this troubleshooting and I've rebuilt this XO three times, including not bringing over any export / configurations / backups from previous installments--I simply pointed a vanilla XO (running similar code) at the same XCP-ng pool. I've created a different volume and NFS export on the Synology, so that even started blank and each time I've gone through the test I've preemptively emptied the directories before connecting the XO to the NFS export. The only two things I haven't tried are rebuilding the XCP-ng host from scratch, nor have I tried sending to a different physical remote. Guess it's time to start down that path.
The fact that I can write data to the NFS mount from within the XO VM even while the XCP-ng export is in progress is the part that gets me and makes me think this might be a XO problem vs. an underlying infrastructure problem. Oh well, time to try rebuilding these.
Hammer down!
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@jimmymiller i just noticed one of your pics of the backup had NDB enabled. (says exporting content of VDI shifter through NBD.
Can you check in your backup job if NDB is on?
I would turn it on and off a few times and leave it off then save the job and retry. There was issues with NDB gui in prior version that might be still affecting your test backup job.
