Recommended filesystem replacement for FFS... SFS or PFS?

[xeron]

You've been using dir cache on hard disks for the last 10 years? Oops :-)

[xeron]

Well, using FFS for 10 years isn't necessarily sad; its the standard, it has well tested salvage tools etc. but dir cache shouldn't ever be used on hard disks.

[xeron]

Well, dir cache is an attempt to make reading directories a little faster. It kind of makes sense on floppy disks, but on hard disks it gives no gain, but causes more pain.

Using FFS-DC on hard disks takes up space on the disk, uses more RAM, and makes the already annoying validation process take a lot longer.

A more detailed description is in this publically readable CAM article by Olaf Barthel. Scroll down to section 1.6.