Backup Permissions

[flightdeckrob]

Hi All,

I recently did an upgrade of my backup SMB host (TrueNAS from version 12-U7 to 13-U2) and it seems to have messed up my Proxmox backups.

I tried deleting the storage in Proxmox and re-adding it, rebooting all machines involved, disabling and re-enabling the share on both Proxmox and TrueNAS. Finally I just created an NFS storage share of the same folder on TrueNAS and tested a backup from one of the VMs. Everything seemed to be working so I let the nightly backups run last night.

Now I'm getting this error on only ONE (1) of two (2) VMs that are backing up from my one host.

ERROR: Backup of VM 100 failed - unable to open file '/mnt/pve/TNShare2/dump/vzdump-qemu-100-2022_10_18-08_00_31.tmp/qemu-server.fw.tmp.3008175' - Operation not permitted
INFO: Failed at 2022-10-18 08:00:31
cp: cannot create regular file '/mnt/pve/TNShare2/dump/vzdump-qemu-100-2022_10_18-08_00_31.log': Operation not permitted
INFO: Backup job finished with errors
TASK ERROR: job errors

The other VM on that host backs up without issue and the other 2 VMs on the other host have no issue either.

Any idea what the heck is going on here?

Thanks,

Rob

EDIT - I migrated the VM in question to the other host (local storage with replication between hosts) and it won't back up from that host either.

 

[fabian]

could you try adding the "noserverino" mount option to the mount on the PVE side?

 

[flightdeckrob]

Fabian,

After posting the above I found a bunch of other network issues and it seems my main switch had locked up with 100% CPU usage. The rest of the network was coping with it but the TrueNAS-Proxmox combo didn't and actually helped me find the switch issue.

This issue was resolved by rebooting the switch.

Thanks,

Rob