Date: Sun, 10 Aug 2003 10:33:02 +0100 From: "Lawrence Farr" <bsd-current@epcdirect.co.uk> To: "'Justin T. Gibbs'" <gibbs@scsiguy.com>, <current@freebsd.org> Subject: RE: Adaptec AIC7902 Ultra320 Problems Message-ID: <008101c35f22$6bda20d0$c80aa8c0@lfarr> In-Reply-To: <531132704.1058892367@aslan.btc.adaptec.com>
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I've got another drive now to mess about with: da0: <IBM IC35L036UWDY10-0 S23C> Fixed Direct Access SCSI-3 device And I get the same problems. Running non-packetized fixes it. Are you sure this is a firmware issue? Lawrence Farr EPC Direct Limited > -----Original Message----- > From: Justin T. Gibbs [mailto:gibbs@scsiguy.com] > Sent: 22 July 2003 17:46 > To: Lawrence Farr; current@freebsd.org > Subject: Re: Adaptec AIC7902 Ultra320 Problems > > > > I have a Supermicro SuperServer 6013P-8, with: > > > > ahd0: <Adaptec AIC7902 Ultra320 SCSI adapter> port > > 0x4000-0x40ff,0x4400-0x44ff mem 0xfc300000-0xfc301fff irq 5 > at device 2.0 on > > pci3 > > aic7902: Ultra320 Wide Channel A, SCSI Id=7, PCI-X > 101-133Mhz, 512 SCBs > > ahd1: <Adaptec AIC7902 Ultra320 SCSI adapter> port > > 0x4800-0x48ff,0x4c00-0x4cff mem 0xfc302000-0xfc303fff irq 5 > at device 2.1 on > > pci3 > > aic7902: Ultra320 Wide Channel B, SCSI Id=7, PCI-X > 101-133Mhz, 512 SCBs > > > > Trying to install 5.1-CURRENT-20030709-JPSNAP or 4.8-STABLE on the > > box gives a timeout error that will hang the disk in a state that > > resetting the machine does not clear, and only power cycling will > > clear. Ive replaced the disks with no change, but installed and > > ran Redhat 7.3 on the box with no timeouts or errors. > > The problem you are encountering looks to be a drive firmware issue > exposed when the drive is running at high queue depths. The linux > driver limites the tag depth to 32 by default. The FreeBSD driver > does not throttle in this way. It seems that we just overwhelm the > drive with commands and it just stops doing anything on the > bus. According > to the timeout trace, the target just stopped sending packets while > still sitting on the bus. > > I have not tested this particular drive, so I do not know if update > firmware is available for it. You might try running in non-packetized > mode by toggling this option via SCSI-Select. You previous test of > running at "160" just reduced the clock rate, but still > allowed the use > of the newer, faster, packetized format. > > -- > Justin >
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