Persistent Volume

Percona Operator for PostgreSQL uses Kubernetes Persistent Volumes for PostgreSQL data. You can use the same mechanism for backups on a volume attached to the pgBackRest Pod.

The Operator creates a Persistent Volume when it provisions the cluster. The default backup repository on a volume is repo1 in backups.pgbackrest.repos:

...
backups:
  pgbackrest:
    ...
    global:
      repo1-path: /pgbackrest/postgres-operator/cluster1/repo1
    ...
    repos:
    - name: repo1
      volume:
        volumeClaimSpec:
          accessModes:
          - ReadWriteOnce
          resources:
            requests:
              storage: 1Gi

This configuration is enough to run backups. To use a specific Storage Class , set it in volumeClaimSpec as described in the Operator Custom Resource options.

Next steps

Make an on-demand backup Make a scheduled backup

---

Last update: May 22, 2026
Created: May 22, 2026