Reclaiming Disk Space from Unused Snapshot Copies on Btrfs Filesystems

Tue, 26 May 2026 08:09:16 +0200

Introduction to Btrfs Snapshots

I’ve worked with Btrfs for a while now, and one of its most useful features is snapshotting. This allows you to create a read-only copy of a subvolume at a given point in time, which is perfect for backups, testing, and rolling back changes. However, over time, these snapshot copies can accumulate and consume significant disk space. In practice, this can become a real issue if you’re not careful.

Btrfs on Linux Security

Reclaiming Disk Space from Unused Snapshot Copies on Btrfs Filesystems

Introduction to Btrfs Snapshots