vzdump performace problems

rekacsa

Member
May 2, 2012
3
0
21
Hi All,

I have upgraded proxmox 1.9 to 2.0, and it's working, but I have a problem with vzdump.

In 1.9 my daily backup log was:

[FONT=Geneva, Arial, Helvetica]
vzdump --quiet --snapshot --compress --storage backup_sunday --maxfiles 1 --mailto xxx@xxx.xx --all 101: Apr 22 02:00:01 INFO: Starting Backup of VM 101 (qemu) 101: Apr 22 02:00:01 INFO: running 101: Apr 22 02:00:01 INFO: status = running 101: Apr 22 02:00:02 INFO: backup mode: snapshot 101: Apr 22 02:00:02 INFO: ionice priority: 7 101: Apr 22 02:00:02 INFO: Logical volume "vzsnap-virt-0" created 101: Apr 22 02:00:02 INFO: creating archive '/backup/sunday/vzdump-qemu-101-2012_04_22-02_00_01.tgz' 101: Apr 22 02:00:02 INFO: adding '/backup/sunday/vzdump-qemu-101-2012_04_22-02_00_01.tmp/qemu-server.conf' to archive ('qemu-server.conf') 101: Apr 22 02:00:02 INFO: adding '/mnt/vzsnap0/images/101/vm-101-disk-1.raw' to archive ('vm-disk-ide0.raw') 101: Apr 22 02:37:04 INFO: Total bytes written: 3398740480 (1.46 MiB/s) 101: Apr 22 02:37:04 INFO: archive file size: 1.34GB 101: Apr 22 02:37:04 INFO: delete old backup '/backup/sunday/vzdump-qemu-101-2012_04_15-02_00_01.tgz' 101: Apr 22 02:37:06 INFO: Logical volume "vzsnap-virt-0" successfully removed 101: Apr 22 02:37:06 INFO: Finished Backup of VM 101 (00:37:05)[/FONT]After I have upgraded to 2.0 my log is:

[FONT=Geneva, Arial, Helvetica]
vzdump --quiet 1 --mailto xxx@xxx.xx --mode snapshot --compress gzip --storage backup_tue --all 1 101: Apr 24 00:00:02 INFO: Starting Backup of VM 101 (qemu) 101: Apr 24 00:00:02 INFO: status = running 101: Apr 24 00:00:03 INFO: backup mode: snapshot 101: Apr 24 00:00:03 INFO: ionice priority: 7 101: Apr 24 00:00:03 INFO: Logical volume "vzsnap-virt-0" created 101: Apr 24 00:00:03 INFO: creating archive '/backup/tue/dump/vzdump-qemu-101-2012_04_24-00_00_02.tar.gz' 101: Apr 24 00:00:03 INFO: adding '/backup/tue/dump/vzdump-qemu-101-2012_04_24-00_00_02.tmp/qemu-server.conf' to archive ('qemu-server.conf') 101: Apr 24 00:00:03 INFO: adding '/mnt/vzsnap0/images/101/vm-101-disk-1.raw' to archive ('vm-disk-ide0.raw') 101: Apr 24 03:17:09 INFO: Total bytes written: 429496732160 (34.64 MiB/s) 101: Apr 24 03:17:09 INFO: archive file size: 13.65GB 101: Apr 24 03:17:11 INFO: Finished Backup of VM 101 (03:17:09)[/FONT]
[FONT=Geneva, Arial, Helvetica]
So there is a big difference between (1.46 MiB/s)and (34.64 MiB/s). :confused: and "archive file size: 13.65GB" and "archive file size: 1.34GB"

I don't have any idea what can I do and what I did wrong.

There are not any modification on KVM, or any hardware change my machine. What can I do?

The restore time of this KVM approx. 10 hours :(

Please help me!

Thx,
rekacsa [/FONT]
 
I's much better now, Thx!

[FONT=Geneva, Arial, Helvetica]
vzdump --quiet 1 --mailto xxx@xxx.xx --mode snapshot --compress lzo --storage backup_thue --all 1 101: May 03 00:00:01 INFO: Starting Backup of VM 101 (qemu) 101: May 03 00:00:01 INFO: status = running 101: May 03 00:00:02 INFO: backup mode: snapshot 101: May 03 00:00:02 INFO: ionice priority: 7 101: May 03 00:00:03 INFO: Logical volume "vzsnap-virt-0" created 101: May 03 00:00:03 INFO: creating archive '/backup/thue/dump/vzdump-qemu-101-2012_05_03-00_00_01.tar.lzo' 101: May 03 00:00:03 INFO: adding '/backup/csutortok/dump/vzdump-qemu-101-2012_05_03-00_00_01.tmp/qemu-server.conf' to archive ('qemu-server.conf') 101: May 03 00:00:03 INFO: adding '/mnt/vzsnap0/images/101/vm-101-disk-1.raw' to archive ('vm-disk-ide0.raw') 101: May 03 00:48:01 INFO: Total bytes written: 429496732160 (142.32 MiB/s) 101: May 03 00:48:01 INFO: archive file size: 3.32GB 101: May 03 00:48:01 INFO: delete old backup '/backup/thue/dump/vzdump-qemu-101-2012_04_26-00_00_01.tar.gz' 101: May 03 00:48:23 INFO: Finished Backup of VM 101 (00:48:22)[/FONT]
 

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!