- Proxmox VE host backup
- Proxmox Mail Gateway host backup
- Encryption configuration improvements
- Backup to one (physical) datastore from multiple Proxmox VE clusters, avoiding backup naming conflicts
- Updates via GUI, xterm.js host console (done)
- GUI restore improvements (including VMs)
- Documentation improvements
- Add comments to backups (done)
- Set manual protection (immutable) flag for backups
- Importer for existing vzdump archives into Proxmox Backup Server
- LDAP/AD Authentication
- Two Factor Authentication (2FA)
- Tape support
- Backup clients for other operating systems
See also Announcement forum
Proxmox Backup Server 1.0
Released 11. November 2020
- Based on Debian Buster (10.6)
- Kernel 5.4 LTS
- ZFS 0.8.4
- Backup & Restore (core functionality):
Periodic backups produce large amounts of duplicate data. The deduplication layer avoids redundancy and minimizes the used storage space. Deduplication is performed per datastore.
- Incremental backups
Changes between backups are typically small. Reading and sending only the delta reduces the storage and network impact of backups.
- Data Integrity
The built in SHA-256 checksum algorithm ensures the accuracy and consistency of your backups.
The ultra-fast Zstandard compression is able to compress several gigabytes of data per second.
Backups can be encrypted on the client-side using AES-256 in Galois/Counter mode. This authenticated encryption mode provides very high performance on modern hardware.
Backups on disk can be verified with the stored SHA-256 checksums to protect against corruption and bitrot. This can be scheduled periodically including regular re-verification.
- Remote Sync
It is possible to efficiently synchronize data from remote sites. Only deltas containing new data are transferred. Optimized and tested for high-latency links.
The whole software stack is written in Rust, to provide high speed and memory efficiency.
- Open Source
Proxmox Backup Server is free and open-source software. The source code is licensed under GNU AGPL, v3.
- And of course - Backups can be restored comfortably!
- Proxmox VE Integration
- Support for incremental, deduplicated backups of qemu virtual machines (supporting QEMU dirty bitmaps) and containers.
- Simply configurable as a Storage Backend on Proxmox VE
- Granular restore:
- Mapping for QEMU virtual disks to loop back block devices
- File-level restore of container backups
- Current backup state is preserved across migrations inside Proxmox VE
- Enterprise support
With the release of version 1.0, support subscriptions for Proxmox Backup Server are available, providing access to the stable Enterprise Repository (recommended for production use) and to technical support from the Proxmox team.
- Web interface
Manage Proxmox backups with the integrated, web-based user interface.
- Start operations from within the views in which they are relevant
- Widgets in the GUI provide useful popups when you hoover over (e.g., individual states in the task summary, on the dashboard)
- Improved and mature user experience in the GUI - many features known from other Proxmox products were ported to the new Rust code-base to provide the same level of comfort during daily work:
- Online reference documentation for the current version, available in the GUI via the Help button
- System console via xterm.js
- System updates and changelogs
- Display of the system's journal
- Management and scheduling of maintenance tasks provides all the settings necessary to just configure it once and not have to think about it
- Scheduling based on the flexible systemd-time specification
- E-mail notifications for scheduled background tasks (verification, pruning, garbage collection, sync jobs).
- Vastly improved user interface
- Sensible encryption-key handling
- Proxmox Backup Server encryption keys are stored as simple json files, and can be easily stored off-site for disaster recover purposes
- They can also be exported as QR-codes for printing on paper and storing off-line
- Flexible Access Control:
- Support for fine-grained ACLs for separate users on different objects (datastores, remotes, system configuration)
- Token based authentication with reduced privileges:
A user can create tokens with a subset of their privileges, instead of having to store their password on a client
Proxmox Backup Server Beta (2nd ISO release)
Released 5. October 2020
- Beta Release
- Update to recent package versions with many fixes and feature additions
- Based on Debian 10.6 Buster
- Updated kernel (5.4) and include latest security fixes
Proxmox Backup Server Beta
Released 10. July 2020
- First public beta release
- Based on Debian Buster (10.4)
- Kernel 5.4 LTS with ZFS 0.8.4