FreeBSD filesystem performance in Enterprise

[Forrest Aldrich]

Curious how FreeBSD ffs performs in Enterprise-level environments (ie: 
email stores that send 100's of thousands of messages per  day) versus 
other filesystems like XFS (I heard thre's a port going on for 
FreeBSD..?), ReiserFS, et al.   Is there a FAQ that covers some of this 
and the various tuning issues one might consider (filesystem and 
kernel).   This applies either disk-alone or across a raid array, 
etc.    I'm interested in hearing others experiences (good and bad).


Thanks.