wikiProxmox Backup Server
Proxmox BS (Proxmox Backup Server; short PBS) is an open source backup solution for Proxmox VE based on Debian GNU/Linux. PBS supports both the backup of classic kernel-based virtual machines (KVM) and the backup of containers based on LinuX Containers (LXC). The PBS offers a clear web interface for managing backups.
Proxmox Backp Server 3.x
Proxmox Backup Server 3.0 is based on Debian 12 and uses a kernel 6.8 based on Ubuntu 24.04 in the latest version:
| Version | Base | Kernel | Kernel Comment |
|---|---|---|---|
| Proxmox BS 3.0 | Debian Bookworm 12 | 6.2 | (Ubuntu 23.04 Kernel) |
| Proxmox BS 3.1 | Debian Bookworm 12.2 | 6.5 | (Ubuntu 23.10 Kernel) |
| Proxmox BS 3.2 | Debian Bookworm 12.5 | 6.5 | (Ubuntu 23.10 Kernel) |
| Proxmox BS 3.3 | Debian Bookworm 12.8 | 6.8 | (Ubuntu 24.04 Kernel) |
| Proxmox BS 3.4 | Debian Bookworm 12.10 | 6.8 | (Ubuntu 24.04 Kernel) |
Proxmox Backup Server 2.x
Proxmox Backup Server 2.0 is based on Debian 11 and uses a kernel 5.13 based on Ubuntu 21.10 in the latest version:
| Version | Base | Kernel | Kernel Comment |
|---|---|---|---|
| Proxmox BS 2.0 | Debian Bullseye 11 | 5.11 | (Ubuntu 21.04 Kernel) |
| Proxmox BS 2.1 | Debian Bullseye 11.1 | 5.13 | (Ubuntu 21.10 Kernel) |
| Proxmox BS 2.2 | Debian Bullseye 11.3 | 5.15 | (Ubuntu 22.04 Kernel) |
| Proxmox BS 2.3 | Debian Bullseye 11.5 | 5.15 | (Ubuntu 22.04 Kernel) |
Proxmox Backup Server 1.x
Proxmox BS 1.0 basiert auf Debian 10 und verwendet in der aktuellsten Version einen auf Ubuntu 20.04 basierenden Kernel 5.4:
| Version | Base | Kernel | Kernel Comment |
|---|---|---|---|
| Proxmox BS 1.0 | Debian Buster 10.6 | 5.4 | (Ubuntu 20.04 Kernel) |
| Proxmox BS 1.1 | Debian Buster 10.9 | 5.4.106 |
Changelog
Proxmox Backup Server (PBS) uses a rolling release model instead of point releases. Updates can be easily installed using the integrated update function. This section lists the currently available versions of Proxmox Backup Server with the most important changes and features.
Proxmox Backup Server 3.3
- Debian Bookworm (12.8)
- ZFS 2.2.6
- New push options for remote sync jobs
- Support for removable data storage
- New webhook notification target
- New change detection modes to speed up file-based backups
Proxmox Backup Server 3.2
- Debian Bookworm (12.5)
- ZFS 2.2.3
- Reworked the notification system
- Automated installation possible
- Overview of the configured prune and garbage collection jobs
Proxmox Backup Server 3.1
- Debian Bookworm (12.2)
- Kernel 6.5
- ZFS 2.2.0
- Support for Secure Boot
- Addition of local sync jobs to the sync jobs
- Tape support for LTO 9
Proxmox Backup Server 3.0
- Debian Bookworm (12)
- Kernel 6.2
- ZFS 2.1.12
- Text based installer
- Extended support for tape backups
- Customisation of sync jobs (possibility to transfer only the latest backups)
Proxmox Backup Server 2.3
- Debian Bullseye (11.5)
- ZFS 2.1.6
- Pruning is now also possible for individual namespaces
- Off-site backups possible using a remote sync
Proxmox Backup Server 2.2
- Debian Bullseye (11.3)
- Kernel 5.15
- ZFS 2.1.4
- Possibility to divide the data storage into several namespaces
- Maintenance mode (offline, read-only)
Proxmox Backup Server 2.1
- Bandwidth limit configuration for network traffic now possible
- Backups can now be marked as protected (cannot be deleted)
- Group filter for sync and tape job backups
- Improvements to OpenID Connect
Proxmox Backup Server 2.0
- Proxmox Tape-Backup is now included in PBS 2.0
- Single Sign On with OpenID Connect
- HTTP proxy configuration possible
- Lets Encrypt / ACME support via GUI
- Repository management via GUI
- Single file restore for VMs (ZFS/LVMthin based)
Proxmox Backup Server 1.1
- Debian Buster (10.9)(base)
- Kernel 5.4.106
- ZFS 2.0
- Tape Backup (Technology Preview)
- 2 factor authentication (TFA) for the web interface
- HTTP compression via content encoding
- Compression File-Level ZIP Archive Downloads
- Noticeable improvements and bugfixes
Proxmox Backup Server 1.0
The first version of the Proxmox Backup Server was released on 11/11/2020 [1]
- Based on Debian Buster (10.6)
- Kernel 5.4 LTS
- ZFS 0.8.4
- Backup & Restore (basic functions):
- Deduplication
- Incremental backups
- Data integrity (SHA-256)
- Compression (ZSTD)
- Encryption (AES-256 client-side)
- Data verification (incl. reverification)
- Remote sync (asynchronous datastore sync between multiple servers)
- Performance (PBS is written in Rust)
- Open Source
- Full Proxmox VE integration
- Backup of KVM (Kernel Based Virtual Machines) (including QEMU dirty bitmaps)
- Backup of Linux Containers (LXC) (incl. file-level restore)
- Enterprise support (recommended for productive operation)
- Web interface
- Set up and start backup jobs
- Widgets in the dashboard show current utilisation, successful, running and failed backup jobs and much more.
- Backup job scheduling
- Defined at datastore level
- based on the flexible systemd time specifications (known from cronjobs)
- E-mail notifications
More information
- Proxmox Backup Server (proxmox.com)
- https://pbs.proxmox.com/docs/ Documentation] (pbs.proxmox.com/docs)
- Community Forum (forum.proxmox.com)
- https://bugzilla.proxmox.com Bugtracker] (bugzilla.proxmox.com)
- https://git.proxmox.com Source Code] (git.proxmox.com)
- Proxmox Backup Server Roadmap (pbs.proxmox.com/wiki)
Individual references
- ↑ Proxmox Backup Server Roadmap - Changelogs 1.0 (pbs.proxmox.com)
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Author: Jonas Sterr Jonas Sterr has been working for Thomas-Krenn for several years. Originally employed as a trainee in technical support and then in hosting (formerly Filoo), Mr. Sterr now mainly deals with the topics of storage (SDS / Huawei / Netapp), virtualization (VMware, Proxmox, HyperV) and network (switches, firewalls) in product management at Thomas-Krenn.AG in Freyung.
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