Backup failures

mattlehrer

Active Member
May 22, 2020
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I run weekly backups to my qnap via samba/cifs. I have a cluster with 2 nodes and 2 standalone Proxmox servers.
All have begun to have failures on this weekends backup jobs. I've rebooted the QNAP nas, and rebooted the proxmox nodes as well for good measure.

Assuming it might be something on the QNAP side, but any assistance would be great as I've recently updated each node to the latest updates on non-subscription channel as well. I can access this mount via SSH from the Proxmox nodes and it works fine and can see all the older backups.

Here is an example of a backup failing:

INFO: Starting Backup of VM 101 (qemu)
INFO: Backup started at 2022-02-12 10:45:54
INFO: status = running
INFO: VM Name: OPNsense
INFO: include disk 'scsi0' 'local-lvm:vm-101-disk-0' 40G
INFO: backup mode: snapshot
INFO: ionice priority: 7
ERROR: Backup of VM 101 failed - unable to open '/mnt/pve/qnap_proxmoxbackups/dump/vzdump-qemu-101-2022_02_12-10_45_54.tmp/qemu-server.conf' at /usr/share/perl5/PVE/VZDump/QemuServer.pm line 210.
INFO: Failed at 2022-02-12 10:45:55
INFO: Backup job finished with errors
TASK ERROR: job errors
 
Hi. I have exactly the same problem. Proxmox does not back up to qnap. Please help.
 
I had upgraded my qnap nas on the same day and I think they screwed something up with SMB/CIFS.
I saw that the files being written on the qnap had a guid for an owner while older backups had usernames that I had set up for the shares.
Something is borked.

To work around it, I created a NFS mount on the qnap and am backing up successfully to that from Proxmox.