Could anybody share any insights as to why this is happening? At first I thought due to not enough space, yet snapshots doesn't take any space whe not modifed and I am able to create them normally.
Code:
vzdump 100 101 --mailto REDACTED@REDACTED.COM --node REDACTED --mode PBS --storage backup --quiet 1 --mailnotification failure
100: 2021-04-29 02:30:02 INFO: Starting Backup of VM 100 (lxc)
100: 2021-04-29 02:30:02 INFO: status = running
100: 2021-04-29 02:30:02 INFO: CT Name: REDACTED
100: 2021-04-29 02:30:02 INFO: including mount point rootfs ('/') in backup
100: 2021-04-29 02:30:02 INFO: including mount point mp0 ('/mnt/data') in backup
100: 2021-04-29 02:30:02 INFO: backup mode: snapshot
100: 2021-04-29 02:30:02 INFO: ionice priority: 7
100: 2021-04-29 02:30:02 INFO: suspend vm to make snapshot
100: 2021-04-29 02:30:02 INFO: create storage snapshot 'vzdump'
100: 2021-04-29 02:30:03 INFO: resume vm
100: 2021-04-29 02:30:03 INFO: guest is online again after 1 seconds
100: 2021-04-29 02:30:03 INFO: creating Proxmox Backup Server archive 'ct/100/2021-04-29T00:30:02Z'
100: 2021-04-29 02:30:03 INFO: run: lxc-usernsexec -m u:0:100000:65536 -m g:0:100000:65536 -- /usr/bin/proxmox-backup-client backup --crypt-mode=none pct.conf:/var/tmp/vzdumptmp9565_100/etc/vzdump/pct.conf root.pxar:/mnt/vzsnap0 --include-dev /mnt/vzsnap0/./ --include-dev /mnt/vzsnap0/./mnt/data --skip-lost-and-found --exclude=/tmp/?* --exclude=/var/tmp/?* --exclude=/var/run/?*.pid --backup-type ct --backup-id 100 --backup-time 1619656202 --repository REDACTED@pbs@PBS.SERVER.COM:PVE
100: 2021-04-29 02:30:03 INFO: Starting backup: ct/100/2021-04-29T00:30:02Z
100: 2021-04-29 02:30:03 INFO: Client name: HOST
100: 2021-04-29 02:30:03 INFO: Starting backup protocol: Thu Apr 29 02:30:03 2021
100: 2021-04-29 02:30:03 INFO: No previous manifest available.
100: 2021-04-29 02:30:03 INFO: Upload config file '/var/tmp/vzdumptmp9565_100/etc/vzdump/pct.conf' to 'REDACTED@pbs@backup.storigen.space:8007:host' as pct.conf.blob
100: 2021-04-29 02:30:03 INFO: Upload directory '/mnt/vzsnap0' to 'host@pbs@PBS.SERVER.COM:8007:host' as root.pxar.didx
100: 2021-04-29 05:40:47 INFO: catalog upload error - channel closed
100: 2021-04-29 05:40:47 INFO: Error: error at "mnt/data/REDACTED/REDAC/1/XXX.REDACTED.XXX:XXXX/XX-X.XXXXXXXXX.XXXXXX:XXXX/XX_XXXX/XXX XX-XXXX/XXXX XXXXXX XXXX (XXX).zip": Input/output error (os error 5)
100: 2021-04-29 05:40:55 INFO: cleanup temporary 'vzdump' snapshot
100: 2021-04-29 05:40:55 ERROR: Backup of VM 100 failed - command 'lxc-usernsexec -m u:0:100000:65536 -m g:0:100000:65536 -- /usr/