Single LXC backup fails error 23

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dridhas

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Aug 11, 2022
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Hello all,

Good day.

Recently i noted that on my environment just one lxc container is not getting backed up due to error 23 when using snapshot mode.

i have another lxc container with similar configuration (different apps on it) and that one works fine when using snapshot mode.

When using stop mode, everything works fine.

I noticed this changed about 2-3 days ago.

Here is the configuartion of the affected LXC:
arch: amd64
cores: 1
features: nesting=1
hostname: Containers-lxc
memory: 2048
net0: name=eth0,bridge=vmbr0,hwaddr=XX:XX:XX:XX:XX:XX,ip=dhcp,type=veth
onboot: 1
ostype: ubuntu
rootfs: Storage:304/vm-304-disk-0.raw,size=5G
swap: 512
unprivileged: 1


this is the result when running the backup either from the GUI or the shell:
INFO: starting new backup job: vzdump 304 --notes-template '{{guestname}}' --mode snapshot --storage Backups --compress zstd --remove 0 --node RM-Lab
INFO: Starting Backup of VM 304 (lxc)
INFO: Backup started at 2022-09-12 17:13:27
INFO: status = running
INFO: CT Name: Containers-lxc
INFO: including mount point rootfs ('/') in backup
INFO: mode failure - some volumes do not support snapshots
INFO: trying 'suspend' mode instead
INFO: backup mode: suspend
INFO: ionice priority: 7
INFO: CT Name: Containers-lxc
INFO: including mount point rootfs ('/') in backup
INFO: starting first sync /proc/32843/root/ to /media/backups/dump/vzdump-lxc-304-2022_09_12-17_13_27.tmp
ERROR: Backup of VM 304 failed - command 'rsync --stats -h -X -A --numeric-ids -aH --delete --no-whole-file --sparse --one-file-system --relative '--exclude=/tmp/?*' '--exclude=/var/tmp/?*' '--exclude=/var/run/?*.pid' /proc/32843/root//./ /media/backups/dump/vzdump-lxc-304-2022_09_12-17_13_27.tmp' failed: exit code 23
INFO: Failed at 2022-09-12 17:14:06
INFO: Backup job finished with errors
TASK ERROR: job errors


/media/backups is an external USB drive where all LXC and all VMs are getting backed up successfully (except this one). Its also got plenty of space still (1TB)

Any help/insights are greatly appreciated.
 
please don't double post
 
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