tag

#snapshots

3 posts

LinuxDeep Dive August 9, 2026 3 min read

Btrfs Copy-on-Write and Snapshots: What Is Shared, What Changes, and What Can Fail

A storage-accurate explanation of Btrfs extents, subvolumes, snapshots, reflinks, checksums, free-space behavior, consistency, and backup boundaries.

#linux#btrfs#snapshots

macOSHow-To July 11, 2026 4 min read

Creating, listing, mounting, and cleaning up APFS local snapshots directly — the same mechanism Time Machine uses, available for manual, ad-hoc use.

#howto#apfs#snapshots

WindowsDeep Dive July 11, 2026 5 min read

The coordination mechanism that lets Windows back up files that are open and being written to, without the inconsistency a live copy would risk.

#vss#backup#snapshots