> From: Moore, Eric [mailto:Eric.Moore@xxxxxxxx] > Sent: Thursday, August 03, 2006 2:07 PM > To: Scott Lowrey; linux-scsi@xxxxxxxxxxxxxxx > Subject: RE: Performance Problem with LSI Logic 53c1030 RAID > > -- On Thursday, August 03, 2006 11:50 AM, Scott Lowrey wrote: > > > > Problem: > > Deteriorating disk write performance with large files. > > > > The problem *disappears* completely if RAID is disabled > > or if the > > array > > is put into a degraded state by pulling the secondary > > array drive. > > The > > problem *remains* if the primary array drive is pulled. > > > > > Is it possible for you to upgrade to the latest stable kernel on > www.kernel.org, such as 2.6.17, or even 2.6.18-rc3. This issue would > be solved. I believe one of your disks in your integrated volume > is running asyn narrow, due to a bug in the driver. From 2.6.17 kernel, > the mptspi driver is using the spi transport layer. > I'm confused. Are you saying the driver has a bug? If so, we're using the latest MPT drivers from LSI -- 3.02.68. Or are you saying that the newer kernel interacts with the driver in a different way? We could update the kernel, but time is a factor and we'd have to do a lot of testing before release.... hmm... probably worth doing a quick build-and-test to see if it works. - : send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
