> The most obvious alternative to ZFS on Debian would be Btrfs. Does anyone
> have any comments or suggestions regarding Btrfs and data corruption bugs,
> concurrency, CMM level, PSP, etc.?
If you're worried about such things, I'd think "the most obvious
alternative" is LVM+ext4. Both Btrfs and ZFS share the same underlying
problem: more features => more code => more bugs.
Stefan