How-to

Set up reliable backup jobs in Proxmox VE.

Create backup jobs to PBS with schedules, retention alignment, and hooks to keep windows predictable.

Steps

  1. Add PBS storage. Ensure the PBS datastore is added and active in Proxmox VE.
  2. Create a backup job. In PVE: Datacenter > Backup > Add. Select VMs/CTs, PBS storage, mode (snapshot), and compression (zstd).
  3. Set schedule and notes. Choose time aligned to your window; add notes/tags to identify job purpose.
  4. Limit concurrency. Set max concurrent jobs to match storage/network capacity; avoid overlapping with verify/prune/GC.
  5. Add hooks if needed. Use hook scripts for pre/post tasks (e.g., app quiesce or service checks).
  6. Run an initial job. Execute once, review logs, and confirm the snapshot appears in PBS.

Prereqs

  • PBS storage added and active
  • Backup window chosen
  • Retention/prune policy set
  • Hook scripts prepared (if needed)

Quick checks

  • Job completes within the window.
  • Snapshots visible in PBS datastore.
  • Concurrency limits prevent overload.
  • Notes/tags recorded for audits.

If something fails

  • Check storage status; re-approve fingerprint if needed.
  • Reduce concurrent jobs; reschedule away from verify/prune.
  • Inspect hook scripts for errors.
  • Review logs for auth/fingerprint or network issues.

Related guides

Official docs

See Proxmox VE backup job docs: PVE backup and restore.

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