Automatic VM snapshot ?

F

Florent

Member
Apr 3, 2012
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Hi everyone,

I use "snapshot" feature for my VMs, which is a very quick using RBD disks.

I would like to do automatic snapshots, so I went to Datacenter->Backup and created a task for my VM using "snapshot" mode.

But it does not seem to be the same "snapshot" mode as doing it manually on my VM, because it does an entire copy of the disk, on an NFS share.

Is there a way to do automatic "snapshots" like in "VM" -> "Snapshots" ?

Thank you :)
 
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>> But it does not seem to be the same "snapshot" mode as doing it manually on my VM, because it does an entire copy of the disk, on an NFS share.
That option means "make snapshot of LV and then dump it to the files with compression" - advantage of this backup method is short down time (practically is time needed to take snapshot)

>> Is there a way to do automatic "snapshots" like in "VM" -> "Snapshots" ?
I think this can be done with crontab + cli command (you can see which command in task tray of Proxmox GUI)

But this snapshots have one big disadvantage - VM's data will be smudged on physical block device - that will result in poor disk performance due to highest fragmentation of data.
 
simon272 said:
>> But it does not seem to be the same "snapshot" mode as doing it manually on my VM, because it does an entire copy of the disk, on an NFS share.
That option means "make snapshot of LV and then dump it to the files with compression" - advantage of this backup method is short down time (practically is time needed to take snapshot)
Click to expand...

Backup takes a long time for me... it copies the entire disk to another location (RBD to NFS) and last night the host crashed during this backup...
 
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