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 [EMAIL PROTECTED]@$! 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.
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