I was curious how "never lose data" works given that HDDs do not provide infinite capacity: the log is circular. This makes NILFS good for NAND flash. The cont

I was curious how "never lose data" works given that HDDs do not provide infinite capacity: the log is circular. This makes NILFS good for NAND flash. The continuous per-fwrite snapshotting functionality sounds awesome - I've had a few (minor but annoying) accidents with rm of late, so I'd definitely appreciate an rm-proof undelete. I was trying to figure out if NILFS had any sort of COW functionality, then realized, d'oh, of course it effectively does, via the log. To address the elephant in the room - checksumming - unfortunately NILFS doesn't (yet?) do this. The WP article links to https://www.spinics.net/lists/linux-nilfs/msg01063.html https://www.spinics.net/lists/linux-nilfs/msg01063.html, which states that the CRC32Cs that are written to disk are used only for the remount/recovery stage, and are apparently not suitable for realtime verification.