[gentoo-user] Adaptec 3405 Raid performance

[Vernon A. Fort]

Anyone have one of these raid cards?  The disk performance is horrible.
The setup:
   ASUS P5Q
   kernel 2.6.25-gentoo-r9
   Adaptec 3405 Firmware version 5.2-12415 (June 7th 2007)
   XFS file systems with LVMS

I have put the mount options "noatime,nobarrier" in one file system but 
it made no difference.  Any suggestions?

Vernon