Skip to content

Backup retention

The Operator supports setting pgBackRest retention policies for full and differential backups. When a full backup expires according to the retention policy, pgBackRest cleans up all the files related to this backup and to the write-ahead log. Thus, the expiration of a full backup with some incremental backups based on it results in expiring of all these incremental backups.

You can control backup retention by the following pgBackRest options:

  • --<repo name>-retention-full how much full backups to retain,
  • --<repo name>-retention-diff how much differential backups to retain.

Backup retention type can be either count (the number of backups to keep) or time (the number of days to keep a backup for).

You can set both backup type and retention policy for each of 4 repositories as follows.

        repo1-retention-full: "14"
        repo1-retention-full-type: time

Get expert help

If you need assistance, visit the community forum for comprehensive and free database knowledge, or contact our Percona Database Experts for professional support and services. Join K8S Squad to benefit from early access to features and “ask me anything” sessions with the Experts.

Last update: 2024-06-13