>  > lfs?
>
> It's not clear LFS is necessarily a good fit.
>
> Sure, you could just turn off the cleaner.  But then eventually you
> run out of space, and have to do a cleaning cycle.  Which means you've
> written the same data twice.

anyway lfs spreads writes well through whole disks, while ffs writes lots
of times to same places like bitmaps, inodes etc..