https://besterry.com/tags/database/Recent content in Database on Besterry — Linux & DevOps NotesHugoen-usSun, 18 Aug 2024 00:00:00 +0000https://besterry.com/posts/postgres-backup-strategies/Sun, 18 Aug 2024 00:00:00 +0000https://besterry.com/posts/postgres-backup-strategies/<p>A backup you can&rsquo;t restore isn&rsquo;t a backup. After losing data once (fortunately from a test environment), here&rsquo;s the framework I apply now.</p> <h2 id="the-three-levels-of-recovery">The three levels of recovery</h2> <ol> <li><strong>Point-in-time recovery (PITR)</strong>: Restore to any second in the last N days. Requires WAL archiving + base backups.</li> <li><strong>Daily snapshots</strong>: Restore to yesterday&rsquo;s 3am state. Simple, cheap, 24h RPO.</li> <li><strong>Logical dumps</strong>: Restore specific tables or data subsets. Useful for selective recovery.</li> </ol> <p>Most production databases should have all three.</p>