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Proxmox Backup Server Features

ENTERPRISE-CLASS BACKUP SOLUTION

• Secure backup of VMs, containers, and physical hosts.
• Optimized for virtual environments like Proxmox VE.
• Written in Rust for performance, speed, and memory efficiency.
• Store on-premises and remotely.
• Stand-alone solution means no vendor lock-in.

FREE & OPEN-SOURCE SOFTWARE

• Licensed under the GNU AGPL, v3.
• Debian-based, using Proxmox kernel with OpenZFS support.
• Public code repository (Git).
• Open development on transparent mailing list.
• Bugtracker for issue tracking.
• Community support forum.
• Documentation, project page, video tutorials, howto guides,…

PROXMOX VE INTEGRATION

• Proxmox Virtual Environment is fully supported.
• Add datastores and run backups in the same way you would with any other Proxmox VE storage type.
• Best choice for quick and simple backup of VMs (supporting QEMU dirty bitmaps) and containers.
• Restore single files from VM and container backups.
• Live-restore feature allows for starting a VM, as soon as the restore starts.

INCREMENTAL, DEDUPLICATED BACKUPS

•  Only changes since the last backup are sent and stored – whether it’s an archive, VM, or container.
• The deduplication layer reduces the amount of duplicate data on the backup server.
• Using Proxmox File Archive Format (.pxar) allows you to achieve a high level of deduplication.
• Low network impact – only changes in data are transferred from the backup client to the server.
• Storage space is used efficiently.
• Fast incremental backup (QEMU dirty-bitmap support) for running VMs.
• Use of Zstandard compression to compress several GBs of data per second, before sending.
• Datastore namespaces enable deduplication of data from multiple backup sources.

TAPE BACKUP

• Native tape support fully integrated into Proxmox Backup Server.
• Supports LTO-5 and later (with best-effort support for LTO-4).
• Tape backup/restore jobs.
• Flexible retention policies.
• New user space tape driver (in Rust).
• Support for various tape autoloaders (pmtx-tool).
• Proxmox LTO Barcode Label Generator for organizing your tape library