Proxmox Backup Server: Incremental Backups for Your Whole Cluster

Short summary

Proxmox Backup Server reduces backup storage from 1.5 TB to 80–120 GB through deduplication and incremental backups, while adding backup verification. Key setup requires careful attention to API token privilege separation, which differs from PVE's format. Dedicated hardware for PBS is strongly recommended to avoid losing backups during cluster failure.

• •PBS deduplicates backups across VMs, reducing storage needs by ~95%
• •Built-in verification ensures backups are actually restorable
• •API token privilege separation in PBS requires explicit per-token permission assignment

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