The file format is very simple. The write guarantees of the file system for full OS usage may not be simple, certainly they're not simple on Linux, and Btrfs de

The file format is very simple. The write guarantees of the file system for full OS usage may not be simple, certainly they're not simple on Linux, and Btrfs development shows that this is hard. The GRUB Btrfs driver is pretty small considering the Btrfs feature set. And yet it understands all the multiple device stuff, the logical and physical device abstraction, and snapshots and subvolume navigation. I like always on checksums for every block, both metadata and data. It's a good fit for the cheaper flash media out there including USB sticks which non-deterministically report back garbage, rather than a discrete read error.