KVM backup from iscsi lvm failing

[proxman]

Hi,

Somehow i can´t get the backup feature to work.
Trying to (manually) backup a KVM on top of lvm/iscsi to local storage. With a 10GB VM it works with acceptable throughput of about 50MB/sec.

However with bigger machines, it does not come to an end. Either with one or two lvm disks associated to a VM.

INFO: starting new backup job: vzdump 100 --remove 0 --mode snapshot --compress lzo --storage local --node obe-pve01INFO: Starting Backup of VM 100 (qemu)
INFO: status = running
INFO: backup mode: snapshot
INFO: ionice priority: 7
INFO: suspend vm to make snapshot
INFO: Logical volume "vzsnap-pve01-0" created
INFO: Logical volume "vzsnap-pve01-1" created
INFO: resume vm
INFO: vm is online again after 1 seconds
INFO: creating archive '/var/lib/vz/dump/vzdump-qemu-100-2012_08_28-14_37_00.tar.lzo'
INFO: adding '/var/lib/vz/dump/vzdump-qemu-100-2012_08_28-14_37_00.tmp/qemu-server.conf' to archive ('qemu-server.conf')
INFO: adding '/dev/obe_pve_lvm/vzsnap-pve01-0' to archive ('vm-disk-virtio1.raw')
INFO: adding '/dev/obe_pve_lvm/vzsnap-pve01-1' to archive ('vm-disk-virtio0.raw')

• How to stop the running backup task? (machine is locked trough it running)?
• What can be the problem, what information may i provide?

Thx,
Proxman

 

[tom]

you can stop a running backup if you open the running task and click stop (see bottom of the admin interface).

and monitor if the lvm snapshot runs out of space during backup of bigger VM´s. (e.g. with lvdisplay)