ZFS scrubs can detect silent bit rot and recover any data affected. ZFS also has very easy, filesystem-level snapshots. Filesystem-level deduplication might als

ZFS scrubs can detect silent bit rot and recover any data affected. ZFS also has very easy, filesystem-level snapshots. Filesystem-level deduplication might also be a benefit in the future, though is likely too memory intensive currently for a consumer device. Basically, on OS X, it would allow Time Machine (including Time Machine local backups) to be implemented in a much more elegant way, though I think it's fair to say Apple's actually done a pretty good job of it with their current implementation.