How-to

Configure PBS Remote Sync for offsite copies.

Add a remote PBS target, sync backups offsite, and confirm the offsite copy is available.

Steps

  1. Collect remote PBS info. Remote hostname/IP, user/token, datastore name, and TLS fingerprint.
  2. Add remote as a sync target. In PBS UI: Datastores > Remote, add the remote PBS, approve the fingerprint, and test connection.
  3. Create a Sync Job. In PBS UI: Sync Jobs > Create. Choose local datastore, remote, and remote datastore. Pick namespaces if used.
  4. Run the first sync now. Trigger manually to populate the remote. Watch bandwidth and job logs.
  5. Confirm the offsite copy. Check the remote datastore for the new snapshots.

Prereqs

  • Remote PBS reachable on TCP 8007/backup ports
  • User/token with sync permissions
  • TLS fingerprint for trust
  • Bandwidth expectations noted

Quick checks

  • Sync job completes without fingerprint or auth errors.
  • Remote datastore shows snapshots after first run.
  • Snapshot counts align with what you expect to see.
  • Bandwidth stays within acceptable limits.

If something fails

  • Re-fetch and approve the remote fingerprint.
  • Confirm user/token role includes sync permissions.
  • Check namespace selection matches what you expect to sync.
  • Inspect bandwidth/latency and adjust concurrency limits.

Related guides

Official docs

Reference: Proxmox PBS Remote Sync docs.

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