What distribution is Proxmox Backup Server (PBS) based on?

Proxmox Backup Server is based on Debian GNU/Linux.

Which platforms are supported as a backup source (client)?

The client tool works on most modern Linux systems, meaning you are not limited to Debian-based backups.

Will Proxmox Backup Server run on a 32-bit processor?

Proxmox Backup Server only supports 64-bit CPUs (AMD or Intel). There are no future plans to support 32-bit processors.

How long will my Proxmox Backup Server version be supported?

Proxmox Backup Version Debian Version First Release Debian EOL Proxmox Backup EOL
Proxmox Backup 1.x Debian 10 (Buster) 2020-11 tba tba

Can I copy or synchronize my datastore to another location?

Proxmox Backup Server allows you to copy or synchronize datastores to other locations, through the use of Remotes and Sync Jobs. Remote is the term given to a separate server, which has a datastore that can be synced to a local store. A Sync Job is the process which is used to pull the contents of a datastore from a Remote to a local datastore.

Can Proxmox Backup Server verify data integrity of a backup archive?

Proxmox Backup Server uses a built-in SHA-256 checksum algorithm, to ensure data integrity. Within each backup, a manifest file (index.json) is created, which contains a list of all the backup files, along with their sizes and checksums. This manifest file is used to verify the integrity of each backup.

When backing up to remote servers, do I have to trust the remote server?

Proxmox Backup Server supports client-side encryption, meaning your data is encrypted before it reaches the server. Thus, in the event that an attacker gains access to the server, they will not be able to read the data.


Encryption is not enabled by default. To set up encryption, see the Encryption section of the Proxmox Backup Server Administration Guide.

Is the backup incremental/deduplicated?

With Proxmox Backup Server, backups are sent incremental and data is deduplicated on the server. This minimizes both the storage consumed and the network impact.