https://tail.jtag.cat/tags/backup/ Recent content in Backup on jtagcat's tail Hugo -- gohugo.io en-us Tue, 03 Oct 2023 16:18:19 +0000 https://tail.jtag.cat/zfs-freeze/ Tue, 03 Oct 2023 16:18:19 +0000 https://tail.jtag.cat/zfs-freeze/ <p>I use <a href="https://docs.oracle.com/cd/E18752_01/html/819-5461/gbchx.html"><code>zfs-send</code></a> for backups, but not all destinations<sup id="fnref:1"><a href="#fn:1" class="footnote-ref" role="doc-noteref">1</a></sup> support it. Backing up live systems is problematic — while non-atomic <strong>ordered</strong> rollbacks are business as usual, segmented backups lead to corrupted databases and broken restores.</p> <p><a href="https://12factor.net">Twelve-Factor Apps</a> included: even if state isn&rsquo;t derived from multiple sources, references can still break. For example, when blob storage is backed up a minute before the database, the restored application could hold a broken reference to an image, which doesn&rsquo;t exist.</p> [...]