Combining multiple differential backups to a single full backup.

[nilse_freinet]

I have got a month-worth of daily differential backups of a virtual machine. Now I would like to combine them to a single full backup. Would be easier to restore from such a full backup.

Is this possible with Proxmox Backup Server 1.0-1?

 

[oversite]

I have got a month-worth of daily differential backups of a virtual machine. Now I would like to combine them to a single full backup. Would be easier to restore from such a full backup.

Is this possible with Proxmox Backup Server 1.0-1?

there are no full or diff backups in pbs, the snapshots are all full, you can do a full restore from any snapshot. how do you mean it would be easier?

 

[nilse_freinet]

The first backup of a new virtual machine is full. I assume the next backups are only incremental i.e. differential. Or is Proxmox coping the full content every time?

Instead of rolling back multiple differential backups, it is faster to restore a complete full backup. See https://www.bareos.org

 

[dcsapak]

vm backups can be made incremental, but the resulting backup snapshot is always a full snapshot. the underlying data is split into chunks and those are deduplicated.
see the docs for more detail: https://pbs.proxmox.com/docs/technical-overview.html

 

[nilse_freinet]

Great. Thank you. That answers my question.