I've used a slew of LSI controllers (22915A, integrated 53C1010,
22320-R, MegaRAID 320-1) and they've all performed w/o issues. Now I
have had some hardware die though. One was probably our fault -- during
an attempted upgrade, we probably weren't careful enough with the
22320-R (cramped #@#@$! rackmounts) and after we reinstalled it, it just
never worked right again.
Otherwise, if you leave it alone, they work pretty good. I've got a 4
15K disks (software RAID10) attached to a 22915A in a 2x Opteron 244
server running FC2 64-bit. This machine is deadly fast; every so often,
iostat will show peak transfer rates of 160MB/s. (RAID
cage+rackmount problems stopped us from upgrading to hardware
raid+battery -- we'll tackle this again when we get a 4U case.)
Iain wrote:
> Hi Ericson,
>
> I'm planning on using the onboard LSI SCSI controller, and have read
> alot about poor IO performance on Dells using LSI. Then again, most of
> the talk about Adaptec hasn't been all that complimentary either as I
> saw it ;-) It seems that there is more to it than the name of the chip
> vendor. I havn't heard anything bad about the Tyan opteron based boards
> in any configuration yet though.
