Hi Proxmoxers,
I'm pretty new to proxmox and also have very limited Linux experience, so please be patient with me...
As i found out searching a solution for my problem, there seem to be some major problems with the backup as there are many posts on this, but no real solution (at least I didn't find one).
I installed proxmox 3.2 with the official ISO bare metal on a system with a LSI9271-8i, 4x SAS as RAID 10.
As far as I can tell everything went fine.
After upgrading with the non-subscription repository I'm now on:
I've then setup one VM with WIN 2008R2 STD as guest:
Then I've setup a snapshot backup for the machine to local and tried it without problems.
Additionally I've mounted a CIFS share to a WIN2008R2 STD Server connected via GB-Lan, exactly as described here: http://pve.proxmox.com/wiki/Storage_....2Fetc.2Ffstab
I've set up the mountpoint as directory via GUI and configured a backup to that location.
2 testbackups to the CIFS also had now problems at first. They took about 15 min each (10GB data, nearly the same time as backup to local), which seemed reasonable.
After that I installed MS-SQL2012 Express inside the VM.
Then the problems started, when the first backup to CIFS took place.
The backup stopped after 600MB leaving the VM Guest unusable. The CPU usage at that time was 0,2 - 0,7% but the IO delay always above 12%.
After 2,5 hours waiting for any progress, I restarted the whole proxmox server and unlocked the VM. After that the CPU usage stayed about the same but the IO delay came down to 0 - 0,3%.
I tried a backup to local which worked without issue.
Then again tried backup to CIFS which reproduced the above problem.
Do you have any ideas how to get a backup to CIFS working properly?
It is not so much an issue, if one backup fails from time to time, but a very big issue if the VM is unusuable after a backup.
If you need any further information, please tell me what you need (and how to get it).
Thank you very much!
Harry
I'm pretty new to proxmox and also have very limited Linux experience, so please be patient with me...
As i found out searching a solution for my problem, there seem to be some major problems with the backup as there are many posts on this, but no real solution (at least I didn't find one).
I installed proxmox 3.2 with the official ISO bare metal on a system with a LSI9271-8i, 4x SAS as RAID 10.
As far as I can tell everything went fine.
After upgrading with the non-subscription repository I'm now on:
Code:
root@pve01:~# pveversion -v
proxmox-ve-2.6.32: 3.2-121 (running kernel: 2.6.32-27-pve)
pve-manager: 3.2-1 (running version: 3.2-1/1933730b)
pve-kernel-2.6.32-27-pve: 2.6.32-121
lvm2: 2.02.98-pve4
clvm: 2.02.98-pve4
corosync-pve: 1.4.5-1
openais-pve: 1.1.4-3
libqb0: 0.11.1-2
redhat-cluster-pve: 3.2.0-2
resource-agents-pve: 3.9.2-4
fence-agents-pve: 4.0.5-1
pve-cluster: 3.0-12
qemu-server: 3.1-15
pve-firmware: 1.1-2
libpve-common-perl: 3.0-14
libpve-access-control: 3.0-11
libpve-storage-perl: 3.0-19
pve-libspice-server1: 0.12.4-3
vncterm: 1.1-6
vzctl: 4.0-1pve5
vzprocps: 2.0.11-2
vzquota: 3.1-2
pve-qemu-kvm: 1.7-4
ksm-control-daemon: 1.1-1
glusterfs-client: 3.4.2-1Code:
root@pve01:/etc/pve/qemu-server# cat 1501.conf
boot: dc
bootdisk: virtio0
cores: 2
ide2: cdrom,media=cdrom
memory: 8192
name: WIN2008R2
net0: virtio=DA:10:88:17:F1:C4,bridge=vmbr0,tag=18
onboot: 1
ostype: win7
scsihw: virtio-scsi-pci
sockets: 1
usb0: host=3-9 (this is a software dongle)
virtio0: local:1501/vm-1501-disk-1.raw,format=raw,size=80GAdditionally I've mounted a CIFS share to a WIN2008R2 STD Server connected via GB-Lan, exactly as described here: http://pve.proxmox.com/wiki/Storage_....2Fetc.2Ffstab
I've set up the mountpoint as directory via GUI and configured a backup to that location.
2 testbackups to the CIFS also had now problems at first. They took about 15 min each (10GB data, nearly the same time as backup to local), which seemed reasonable.
After that I installed MS-SQL2012 Express inside the VM.
Then the problems started, when the first backup to CIFS took place.
The backup stopped after 600MB leaving the VM Guest unusable. The CPU usage at that time was 0,2 - 0,7% but the IO delay always above 12%.
After 2,5 hours waiting for any progress, I restarted the whole proxmox server and unlocked the VM. After that the CPU usage stayed about the same but the IO delay came down to 0 - 0,3%.
I tried a backup to local which worked without issue.
Then again tried backup to CIFS which reproduced the above problem.
Do you have any ideas how to get a backup to CIFS working properly?
It is not so much an issue, if one backup fails from time to time, but a very big issue if the VM is unusuable after a backup.
If you need any further information, please tell me what you need (and how to get it).
Thank you very much!
Harry