Proxmox 7 backup

[Archebo]

Hi!

Scheduled backup task from Datacenter-Backup failed:

INFO: CT Name: 1C-U20
INFO: including mount point rootfs ('/') in backup
INFO: backup mode: snapshot
INFO: ionice priority: 7
INFO: create storage snapshot 'vzdump'
INFO: creating vzdump archive '/mnt/pve/OMV-1C/dump/vzdump-lxc-100-2021_08_04-21_00_02.tar.zst'
INFO: Total bytes written: 33854443520 (32GiB, 88MiB/s)
INFO: zstd: /*stdout*\: Input/output error
INFO: cleanup temporary 'vzdump' snapshot
ERROR: Backup of VM 100 failed - command 'set -o pipefail && tar cpf - --totals --one-file-system -p --sparse --numeric-owner --acls --xattrs '--xattrs-include=user.*' '--xattrs-include=security.capability' '--warning=no-file-ignored' '--warning=no-xattr-write' --one-file-system '--warning=no-file-ignored' '--directory=/var/tmp/vzdumptmp3066618_100' ./etc/vzdump/pct.conf ./etc/vzdump/pct.fw '--directory=/mnt/vzsnap0' --no-anchored '--exclude=lost+found' --anchored '--exclude=./tmp/?*' '--exclude=./var/tmp/?*' '--exclude=./var/run/?*.pid' ./ | zstd --rsyncable '--threads=1' >/mnt/pve/OMV-1C/dump/vzdump-lxc-100-2021_08_04-21_00_02.tar.dat' failed: exit code 1
INFO: Failed at 2021-08-04 21:09:39
INFO: Backup job finished with errors

But if i click "Run now" same task, it goes well:

INFO: CT Name: 1C-U20
INFO: including mount point rootfs ('/') in backup
INFO: backup mode: snapshot
INFO: ionice priority: 7
INFO: create storage snapshot 'vzdump'
INFO: creating vzdump archive '/mnt/pve/OMV-1C/dump/vzdump-lxc-100-2021_08_05-08_05_44.tar.zst'
INFO: Total bytes written: 33857351680 (32GiB, 86MiB/s)
INFO: archive file size: 12.33GB
INFO: prune older backups with retention: keep-last=7
INFO: removing backup 'OMV-1C:backup/vzdump-lxc-100-2021_07_26-21_00_02.tar.zst'
INFO: pruned 1 backup(s) not covered by keep-retention policy
INFO: cleanup temporary 'vzdump' snapshot
INFO: Finished Backup of VM 100 (00:06:29)
INFO: Backup finished at 2021-08-05 08:12:13
INFO: Backup job finished successfully
TASK OK

Any help?

 

[fabian]

the commands are the same - did the target storage have a hickup or run out of space maybe?

 

[Archebo]

the commands are the same - did the target storage have a hickup or run out of space maybe

the commands are the same - did the target storage have a hickup or run out of space maybe?

Target storage OK - error only at sceduled mode.

 

[fabian]

there is no difference between a manual and a scheduled backup.

 

[Archebo]

There is difference.

Comparing logs from first message, we can see that there is no line about "prune older backups" in failed attempt log.
Target contains backups of same CT from previous installation Proxmox 6.4
After removing all old backups from target, scheduled task start to work normally.

So, solved.
Thanks.

 

[fabian]

the prune happens AFTER the backup, so if the backup fails you won't see a line about pruning either if removing the backup helped, then you had too little space.

 

[Archebo]

1. Free space over 1 TiB
2. "Run now" - space OK. Run scheduled - space over??

 

[fabian]

there is no difference between a scheduled backup or manually running a scheduled backup run. either you HAD no space, or your storage HAD a temporary problem. not that both problems might not exist NOW - hence why the manual run now works, while the scheduled one in the past did not.

 

[Archebo]

But its fact. I am surprised too.