Hi all,
I have 4 Proxmox hosts running 1.6 (2.6.35) netdev from pvetest
I am trying to find a way to increase my vzdump snapshot times.
All my guest VM's are stored on an iSCSI SAN. Due to this all my VM's must be created as raw. I've read back through the forum and people have suggested that much better vzdump performance is achievable if you use qcow2.
Can anyone suggest any ways to increase performance without ditching my SAN storage?
I've tried creating a vzdump.conf file and have tested with various bwlimit and size setting to no avail. I seem to stuck ~10-15MiB/s backup speed. On some of my larger VM's that takes around 1.5 hours.
Presently I use compression. I think I could maybe half this time without the compression but this then has a knock-on effect as the tarballs are then backed up to an offsite location so the smaller the file the better.
Any ideas?
Cheers in advance,
Chris.
I have 4 Proxmox hosts running 1.6 (2.6.35) netdev from pvetest
Code:
pve-manager: 1.6-8 (pve-manager/1.6/5296)
running kernel: 2.6.35-1-pve
proxmox-ve-2.6.35: 1.6-7
pve-kernel-2.6.35-1-pve: 2.6.35-7
pve-kernel-2.6.18-2-pve: 2.6.18-5
qemu-server: 1.1-25
pve-firmware: 1.0-9
libpve-storage-perl: 1.0-16
vncterm: 0.9-2
vzctl: 3.0.24-1pve4
vzdump: 1.2-9
vzprocps: 2.0.11-1dso2
vzquota: 3.0.11-1
pve-qemu-kvm: 0.13.0-2
ksm-control-daemon: 1.0-4
I am trying to find a way to increase my vzdump snapshot times.
All my guest VM's are stored on an iSCSI SAN. Due to this all my VM's must be created as raw. I've read back through the forum and people have suggested that much better vzdump performance is achievable if you use qcow2.
Can anyone suggest any ways to increase performance without ditching my SAN storage?
I've tried creating a vzdump.conf file and have tested with various bwlimit and size setting to no avail. I seem to stuck ~10-15MiB/s backup speed. On some of my larger VM's that takes around 1.5 hours.
Presently I use compression. I think I could maybe half this time without the compression but this then has a knock-on effect as the tarballs are then backed up to an offsite location so the smaller the file the better.
Any ideas?
Cheers in advance,
Chris.