On Donnerstag 20 November 2008, Vernon A. Fort wrote: > 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
xfs is known for its extremly bad defaults when you do your mkfs. If you search for it on lkml you will find a lot of information.