On Wed, 29 Apr 2009, Paul Sobey wrote:
I have a server running Gentoo X64 2.6.27-gentoo-r8 with an Adaptec 2820SA
configured with a simple mirror. This card is a PCI-X card but due to an
oversight on my part is plugged into a standard PCI slot on a PCI-E
motherboard.
Still, I'm getting some absolutely atrocious disk performance from it, a lot
less than I would expect. Bonnie++ results are here:
<snip>
To reply to my own post, flashing the controller from 5.1 to 5.2 increased
read performance six fold and doubled write performance. Result!
Paul
