vzdump too slow

[slumdog]

Hello,
I have several Proxmox 1.9 servers, on one of them the backup process takes too long.
I have read several threads about this problem and didn't find any solution. I have made a downgrade of vzdump, but same thing.

Here is the log of the backup proccess

Oct 02 23:40:02 INFO: Starting Backup of VM 101 (qemu)
Oct 02 23:40:02 INFO: running
Oct 02 23:40:02 INFO: status = running
Oct 02 23:40:02 INFO: backup mode: snapshot
Oct 02 23:40:02 INFO: bandwidth limit: 30000 KB/s
Oct 02 23:40:02 INFO: ionice priority: 7
Oct 02 23:40:02 INFO: Logical volume "vzsnap-virtual1-0" created
Oct 02 23:40:03 INFO: creating archive '/mnt/pve/duminica/vzdump-qemu-101-2011_10_02-23_40_02.tgz'
Oct 02 23:40:03 INFO: adding '/mnt/pve/duminica/vzdump-qemu-101-2011_10_02-23_40_02.tmp/qemu-server.conf' to archive ('qemu-server.conf')
Oct 02 23:40:03 INFO: adding '/mnt/vzsnap0/images/101/vm-101-disk-1.vmdk' to archive ('vm-disk-ide0.vmdk')
Oct 03 02:25:34 INFO: Total bytes written: 11507558400 (1.11 MiB/s)
Oct 03 04:12:12 INFO: archive file size: 5.83GB
Oct 03 04:12:12 INFO: delete old backup '/mnt/pve/duminica/vzdump-qemu-101-2011_09_25-02_00_01.tar'
Oct 03 04:12:13 INFO: delete old backup '/mnt/pve/duminica/vzdump-qemu-101-2011_10_02-01_30_01.tar'
Oct 03 04:12:15 INFO: delete old backup '/mnt/pve/duminica/vzdump-qemu-101-2011_10_02-15_56_02.tar'
Oct 03 04:12:17 INFO: Logical volume "vzsnap-virtual1-0" successfully removed
Oct 03 04:12:17 INFO: Finished Backup of VM 101 (04:32:15)

anyone has a solution of this?

 

[tom]

1. post your 'pveversion -v'
2. where is your backup target? NFS? test/benchmark your network to your NFS server.
3. run 'pveperf' to benchmark your storage (run this only when your host is idle)
4. test with compression disabled

 

[dik23]

You can use pigz in order to use multiple processors (you can set the number) for compression.

Google proxmox pigz, works for me