Proxmox company, known to develop Proxmox Virtual Environment and Proxmox Mail Gateway, introduced Production of the distribution Proxmox Backup Server 1.1 , which is presented as a ready-made solution for backup and restore virtual environments, containers and server fillings. Installation ISO-image Available for free download. Distribution-specific components are open under the AGPLV3 license. To install updates, both the ENTERPRISE paid repository and two free repository, which are distinguished by the update stabilization level.
The system part of the distribution is based on the Debian 10.9 batch database (buster), Linux 5.4 and OpenZFS 2.0 core. The backup control software stack is written in RUST and supports incremental backups (only changed data is transmitted to the server), deduplication (with duplicate, only one copy is stored), compression (ZStD) and backup encryption. The system is designed based on client-server architecture – Proxmox Backup Server can be used both to operate with local backups and as a centralized server for backing up data from different hosts. Provides quickly selective recovery and data synchronization modes between servers.
Proxmox Backup Server supports integration with the PROXMOX VE platform to back up virtual machines and containers. Backup management and data recovery is carried out via the Web interface. It is possible to distinguish between users’ access to its data. All transmitted traffic from customers to the server is encrypted using AES-256 in GCM mode, and the backup copies themselves are transmitted already encrypted using asymmetric encryption over open keys (encryption is made on the client side and the compromise the server with backup will not lead to the data leakage). The integrity of the backup copies is monitored using the SHA-256 hash.
in new release :
- synchronized with the Debian bay base 10.9 “buster”.
- The implementation of the ZFS file system is translated into the use of branchesOpenZFS 2.0.
- Added support for tape drives supporting the LTO (Linear Tape-Open).
- Added support for saving and restoring storage facilities using a belt drive pool.
- Flexible policies are implemented to determine the data storage.
- Added new driver for tape drives, working in the user space and written in RUST.
- Added support for the control of automatic cartridges in tape drives. To manage autoloaders, the PMTX utility is proposed, which is an analogue of the MTX utility, rewritten in the RUST language.
- The sections are added to the Web interface to configure components, works and executing tasks on a schedule.