[PVE-User] proxmox 1.9 backup to NFS problem

[Mike]

Hi, I running pve-manager/1.9/6542, recently I found that backup via nfs 
failed for all(OpenVZ and KVM) of my virtual machines.

Virtual machines stored in dm-crypt container on my backup server and 
volume have enough free space.

I understand that dm-crypt may become point of failure, but I tried to 
backup same VM on the same server, but not dm-crypted volume and it 
failed with same error.

There is a log:
> vs1:/var/lib/vz-storage# vzdump --dumpdir /var/lib/vz-storage/backup/ 101
> INFO: starting new backup job: vzdump --dumpdir 
> /var/lib/vz-storage/backup/ 101
> INFO: Starting Backup of VM 101 (openvz)
> INFO: CTID 101 exist unmounted down
> INFO: status = CTID 101 exist unmounted down
> INFO: backup mode: stop
> INFO: ionice priority: 7
> INFO: creating archive 
> '/var/lib/vz-storage/backup/vzdump-openvz-101-2012_04_13-13_41_46.tar'
> INFO: tar: -: Cannot close: Input/output error
> INFO: Total bytes written: 480512000 (459MiB, 152MiB/s)
> INFO: tar: Error exit delayed from previous errors
> ERROR: Backup of VM 101 failed - command '(cd 
> /var/lib/vz/private/101;find . '(' -regex '^\.$' ')' -o '(' -type 's' 
> -prune ')' -o -print0|sed 's/\\/\\\\/g'|tar cpf - --totals --sparse 
> --numeric-owner --no-recursion --ignore-failed-read --one-file-system 
> --null -T -) 
> >/var/lib/vz-storage/backup/vzdump-openvz-101-2012_04_13-13_41_46.dat' 
> failed with exit code 2
> INFO: Backup job finished with errors