VMs backups that are not runing on Proxmox VE

jbravo

Member
Sep 22, 2022
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Hello,

Is it possible to use Proxmox Backup Server to backup VMs running on KVM/QEMU without Proxmox VE? Or only the file based backup is supported to that type of deployment?

Thank you!
 
The proxmox-backup-client can do file and block level backups. So as long as the VMs are stopped when backing them up that should work. But not that convenient without integration and you would have to write your own scripts.
 
The proxmox-backup-client can do file and block level backups. So as long as the VMs are stopped when backing them up that should work. But not that convenient without integration and you would have to write your own scripts.
The proxmox-backup-client will have to run in the hypervisor or in the VM to be able to do block level backups? If it's running in the VM how will be possible to work if the VM is stopped?
Do you have any idea where can I get some information about what the script should do to run the backup job?
 
On the hypervisor so it can directly backup the LVs, zvols or whatever block devices your VMs are using.

Not sure about the script. But I guess something like iterate through all VMs, stop them so all caches are flushed and block devices not in use. Then find out all blockdevices that VM is using, do a backup of those block devices to the PBS and start the VM again in case it was shutdown for the backup.
 
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