Date: Sun, 27 Jul 2003 20:47:14 -0400 From: Don Bowman <don@sandvine.com> To: "'freebsd-scsi@freebsd.org'" <freebsd-scsi@freebsd.org>, aic7xxx@freebsd.org Subject: RE: AIC7902 w/ seagate U320 drive issue on releng-4 (and current) Message-ID: <FE045D4D9F7AED4CBFF1B3B813C8533702741FFD@mail.sandvine.com>
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> On Sat, 26 Jul 2003, Don Bowman wrote: > > > Jul 26 19:27:20 /kernel: <<<<<<<<<<<<<<<< Dump Card State Ends > > >>>>>>>>>>>>>>>>>> FYI, i've solved this problem for me by moving to firmware version 5 on the ST318453LW (U320 15KRPM 18GB) seagate drive. If you are seeing the problem I mentioned with U320 seagate drive and AIC7902 controller I highly recommend contacting seagate and requesting the latest rom. Sadly the actual changes are 'proprietary' so I cannot be sure this was the root cause of the problem. I'm guessing there is an issue with large # of tags outstanding, but its only a hunch. I have code to program this ROM under FreeBSD i will share with anyone who asks. I obtained this from andre __AT__ albsmeier __DOT__ net, who had posted information to this list in the past [thank you!]. I cannot be 100% sure this fixes the problem, but it was pretty easy to reproduce with 'dd if=/dev/da0 of=/dev/null bs=20k', and now I cannot reproduce on the 15 systems I am trying. --don
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