VM Backup fails with "ERROR: Backup of VM 100 failed - job failed with err -5 - Input/output error"

[Syndicate]

Hi,

I'm trying to backup a 400GB disk VM (It's only using around 120GB right now).

The backup disk has 548.80 GB free space.

What's wrong? Does it need more free space or is there something else?

Thanks

LOG:

INFO: starting new backup job: vzdump 100 --storage DISCO960GB --notes-template '{{guestname}}' --node pve --compress zstd --mode snapshot --remove 0
INFO: Starting Backup of VM 100 (qemu)
INFO: Backup started at 2022-07-27 03:44:24
INFO: status = running
INFO: VM Name: (REDACTED)
INFO: include disk 'scsi0' 'DISCO960GB:100/vm-100-disk-0.raw' 400G
INFO: backup mode: snapshot
INFO: ionice priority: 7
INFO: creating vzdump archive '/mnt/Disco960/dump/vzdump-qemu-100-2022_07_27-03_44_24.vma.zst'
INFO: started backup task '66401093-6efc-48c6-a1b1-2f599ae1a9d3'
INFO: resuming VM again
INFO:   0% (1.9 GiB of 400.0 GiB) in 3s, read: 633.2 MiB/s, write: 149.9 MiB/s
INFO:   1% (4.0 GiB of 400.0 GiB) in 13s, read: 220.8 MiB/s, write: 123.9 MiB/s
INFO:   2% (8.0 GiB of 400.0 GiB) in 39s, read: 157.4 MiB/s, write: 138.3 MiB/s
INFO:   2% (8.3 GiB of 400.0 GiB) in 59s, read: 14.2 MiB/s, write: 13.9 MiB/s
ERROR: job failed with err -5 - Input/output error
INFO: aborting backup job
INFO: resuming VM again
ERROR: Backup of VM 100 failed - job failed with err -5 - Input/output error
INFO: Failed at 2022-07-27 03:45:25
INFO: Backup job finished with errors
TASK ERROR: job errors

 

[danielb]

Hard to tell. Could be a failing disk on either the source or the destination. You should check the system logs