Backup error

[hotwired007]

One of my backups has hung and now the system will not allow me to do anything - any suggestions?

The VM has a 40GB drive and should have taken around 45min to complete the backup but it still hasnt completed. Another proxmox server in the cluster has been running a big backup at the same time but has no errors on it at all.

Aug 2 00:44:30 voyager vzdump[601959]: INFO: Starting Backup of VM 104 (qemu)
Aug 2 00:44:30 voyager qm[616780]: <root@pam> update VM 104: -lock backup
Aug 2 00:46:22 voyager pvedaemon[608623]: <root@pam> successful auth for user 'root@pam'
Aug 2 00:47:33 voyager pvestatd[2713]: WARNING: command 'df -P -B 1 /mnt/pve/STARFLEET-BACKUP' failed: got timeout
Aug 2 00:51:14 voyager kernel: device-mapper: snapshots: Invalidating snapshot: Unable to allocate exception.
Aug 2 00:51:14 voyager kernel: Buffer I/O error on device dm-9, logical block 3405912
Aug 2 00:51:14 voyager kernel: Buffer I/O error on device dm-9, logical block 3405913
Aug 2 00:51:14 voyager kernel: Buffer I/O error on device dm-9, logical block 3405914
Aug 2 00:51:14 voyager kernel: Buffer I/O error on device dm-9, logical block 3405915
Aug 2 00:51:14 voyager kernel: Buffer I/O error on device dm-9, logical block 3405916
Aug 2 00:51:14 voyager kernel: Buffer I/O error on device dm-9, logical block 3405917
Aug 2 00:51:14 voyager kernel: Buffer I/O error on device dm-9, logical block 3405918
Aug 2 00:51:14 voyager kernel: Buffer I/O error on device dm-9, logical block 3405919
Aug 2 00:51:14 voyager kernel: Buffer I/O error on device dm-9, logical block 3405920
Aug 2 00:51:14 voyager kernel: Buffer I/O error on device dm-9, logical block 3405921
Aug 2 00:51:19 voyager kernel: __ratelimit: 2563611 callbacks suppressed

 

[dietmar]

Aug 2 00:51:14 voyager kernel: device-mapper: snapshots: Invalidating snapshot: Unable to allocate exception.

Your snapshot run out of space. Please stop the backup manually. Then set/increase 'size' in /etc/vzdump.conf. Default size is 1024 (1GB), so I suggest you try with 2GB:

size: 2048

 

[hotwired007]

How do i stop the backup manually?

Do i need to update this on all or just one server?

 

[dietmar]

How do i stop the backup manually?

On the GUI (task list).

Do i need to update this on all or just one server?

Only on servers where you get problems.

 

[matthew]

What does it mean 'snapshot run out of space'? Is this an issue for anyone backing up a VM over 40G in size?