I'm looking into implementing additional backups for a basic Proxmox host (no Ceph/SAN). Currently it's just rsync to another physical non-Proxmox machine and that machine died thus prompting a look into additional offsite backup.
The initial plan was to backup to a remote storage like rsync.net or wasabi.com
While going through documentation and info, my understanding is that ProxMox PBS and zsync all appear to be backing up the disk images. This means that if an important file was lost/corrupted, it is not possible to recover just that file alone. I would have to
- backup the current VM
- restore earlier backup
- find the target file(s), copy it somewhere
- restore the current backup
- copy the target file(s) back into the VM.
If the backup is on local network, this could still be done within reasonable time. However, since this would be on remote, the time needed would be impractical given the typical size of a VM disk and WAN network speed of only 100Mbps.
The other way I can think of to achieve individual file retrieval is to rsync within each VMs to the backup location. Base on past experiences, this is usually quite a slow process on large file systems, the actual transfers can take far far lesser time than what rsync needs to scan the filesystem.
Are there any backup methods that could be used with ProxMox that has a relatively fast backup time and yet easily retrieve individual files?
The initial plan was to backup to a remote storage like rsync.net or wasabi.com
While going through documentation and info, my understanding is that ProxMox PBS and zsync all appear to be backing up the disk images. This means that if an important file was lost/corrupted, it is not possible to recover just that file alone. I would have to
- backup the current VM
- restore earlier backup
- find the target file(s), copy it somewhere
- restore the current backup
- copy the target file(s) back into the VM.
If the backup is on local network, this could still be done within reasonable time. However, since this would be on remote, the time needed would be impractical given the typical size of a VM disk and WAN network speed of only 100Mbps.
The other way I can think of to achieve individual file retrieval is to rsync within each VMs to the backup location. Base on past experiences, this is usually quite a slow process on large file systems, the actual transfers can take far far lesser time than what rsync needs to scan the filesystem.
Are there any backup methods that could be used with ProxMox that has a relatively fast backup time and yet easily retrieve individual files?
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