Date: Wed, 17 Sep 1997 18:39:29 +1000 From: "Taras M. Dowhaluk" <tarasd@visiondb.com.au> To: aic7xxx@FreeBSD.ORG, deischen@iworks.InterWorks.org Subject: Re: AHA-2940 Ultra/Ultra Wide Message-ID: <m0xBFc8-003qLaC@kyoko.mpx.com.au> In-Reply-To: <199709170431.XAA08017@iworks.InterWorks.org>
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> If you're terminating the bus with the JAZ drive, I'd say > that could be a problem. Thats what I thought, but, Well there's no business like SCSI business. On advice from an Adaptec FAQ, I disabled "Initiate Sync Negotiation" (what ever the hell that is) and set the "Max Transfer rate" down to 10mbps on all devices, and rebooted. Errors went away, beaudy ! To prove a point I then re-enabled "Initiate Sync Negotiation" and they did NOT come back ! What the ??? I then bumped the speed back up to 20mbps, and lo ! still no errors at boot. I re-formatted the Jaz cartridge (the filesystem had gone to god), may explain some (not all) of messages. I've rebooted several times, and its been up for 3.5hours, and I'm 'soak' testing by reading/writing filesystems as tarfiles from both hard drives to the Jaz drive. Not a whimper so far. If anyone has got some 'real' scsi bus exercising (exorcising ?) software, pls email the location. > > > > Sep 16 10:16:08 www /kernel: ahc0 <Adaptec 2940 Ultra SCSI host > > adapter> rev 0 int a irq 11 on pci0:10 Sep 16 10:16:08 www /kernel: > > ahc0: aic7880 Wide Channel, SCSI Id=7, 16 SCBs > > Sep 16 10:16:08 www /kernel: ahc0 waiting for scsi devices to settle > > Sep 16 10:16:08 www /kernel: (ahc0:2:0): "QUANTUM FIREBALL ST6.4S > > 0F04" type 0 fixed SCSI 2 > > Sep 16 10:16:08 www /kernel: sd0(ahc0:2:0): Direct-Access 6180MB > > (12657717 512 byte sectors) > > Sep 16 10:16:08 www /kernel: (ahc0:6:0): "iomega jaz 1GB J^77" type 0 > > removable SCSI 2 > > Sep 16 10:16:08 www /kernel: sd1(ahc0:6:0): Direct-Access > > Sep 16 10:16:08 www /kernel: sd1(ahc0:6:0): ILLEGAL REQUEST asc:24,0 > > Invalid field in CDB > > Sep 16 10:16:08 www /kernel: sd1 could not mode sense (4). Using > > ficticious geometry > > Sep 16 10:16:08 www /kernel: ahc0: board is not responding > > What is wrong with the JAZ drive here? It doesn't seem to be > responding correctly. Have you got wide negotiation enabled for > it? Wide negotiation is off for all devices. regards, taras ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Taras M. Dowhaluk Director - Technical Operations VisionDB Pty Ltd Sydney, Australia email: tarasd@visiondb.com.au www: http://www.visiondb.com.au www: http://www.biz.com.au voice: +61 2 99226615 facsimilie: +61 2 99568452 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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