Date: Mon, 30 Jul 2001 11:11:21 -0700 From: Cy Schubert - ITSD Open Systems Group <Cy.Schubert@uumail.gov.bc.ca> To: "Chad R. Larson" <chad@DCFinc.com> Cc: Matt Dillon <dillon@earth.backplane.com>, Martin Kraemer <Martin.Kraemer@fujitsu-siemens.com>, "Justin T. Gibbs" <gibbs@scsiguy.com>, konecny@web.markiza.sk, freebsd-stable@FreeBSD.ORG Subject: Re: Continuing ahc problems - also cause fxp failure Message-ID: <200107301812.f6UIC8b19427@cwsys.cwsent.com> In-Reply-To: Your message of "Mon, 30 Jul 2001 10:00:09 PDT." <20010730100009.B24599@freeway.dcfinc.com>
next in thread | previous in thread | raw e-mail | index | archive | help
In message <20010730100009.B24599@freeway.dcfinc.com>, "Chad R. Larson" writes: > > Just as a side note here... I have never, ever had a SCSI DAT drive > > that didn't cause problems with my other devices. I always put those > > things on their own SCSI bus. It may or may not be related to your > > problem. > > For what it's worth, I've had the exact opposite experience. > +--------------- > | ahc0 <Adaptec aic7880 Ultra SCSI host adapter> rev 0 int a irq 11 on pci0:1 > 3:0 > | ahc0: aic7880 Wide Channel, SCSI Id=7, 16 SCBs > | (ahc0:0:0): "IBM DORS-32160W WA6A" type 0 fixed SCSI 2 > | (ahc0:1:0): "CONNER CFP2107E 2.14GB 1524" type 0 fixed SCSI 2 > | (ahc0:2:0): "IBM DGHS09Y 03E0" type 0 fixed SCSI 3 > | (ahc0:5:0): "HP HP35480A T603" type 1 removable SCSI 2 > | (ahc0:6:0): "RICOH CD-R/RW MP7040S 1.10" type 5 removable SCSI 2 > +--------------- > > All work perfectly. I've never had problems with DAT drives sharing the same bus as other SCSI devices either ahc0: <Adaptec 2940 Ultra SCSI adapter> port 0xb800-0xb8ff mem 0xf2800000-0xf280 0fff irq 9 at device 10.0 on pci2 aic7880: Wide Channel A, SCSI Id=7, 16/255 SCBs sa0 at ahc0 bus 0 target 4 lun 0 sa0: <ARCHIVE Python 28388-XXX 5.45> Removable Sequential Access SCSI-2 device sa0: 7.812MB/s transfers (7.812MHz, offset 15) da0 at ahc0 bus 0 target 0 lun 0 da0: <SEAGATE ST34520W 1444> Fixed Direct Access SCSI-2 device da0: 20.000MB/s transfers (20.000MHz, offset 15), Tagged Queueing Enabled da0: 4340MB (8888924 512 byte sectors: 255H 63S/T 553C) da1 at ahc0 bus 0 target 1 lun 0 da1: <SEAGATE ST34520N 1487> Fixed Direct Access SCSI-2 device da1: 20.000MB/s transfers (20.000MHz, offset 15), Tagged Queueing Enabled da1: 4340MB (8888924 512 byte sectors: 255H 63S/T 553C) cd0 at ahc0 bus 0 target 2 lun 0 cd0: <PLEXTOR CD-ROM PX-4XCH 1.22> Removable CD-ROM SCSI-2 device cd0: 4.032MB/s transfers (4.032MHz, offset 15) cd0: Attempt to query device size failed: NOT READY, Medium not present da2 at ahc0 bus 0 target 6 lun 0 da2: <CWS ORB2 -SE U ID 6 D42> Removable Direct Access SCSI-2 device da2: 20.000MB/s transfers (20.000MHz, offset 15) da2: Attempt to query device size failed: NOT READY, Medium not present On one of my other systems however, I've had problems with this drive sharing a bus on an AHA-1542CF card, da2 at aha1 bus 0 target 2 lun 0 da2: <SEAGATE SX910800N 8514> Fixed Direct Access SCSI-2 device da2: 5.000MB/s transfers (5.000MHz, offset 7) da2: 8669MB (17755614 512 byte sectors: 64H 32S/T 8669C) ... and have had to put it on its own SCSI bus on an AHA-1542B card. Yet, the another drive of the same model attached to an AHA-1542CP on another system has no problems (running at 10 MHz clock rate). I think that the issue is entirely device dependent. Regards, Phone: (250)387-8437 Cy Schubert Fax: (250)387-5766 Team Leader, Sun/Alpha Team Internet: Cy.Schubert@osg.gov.bc.ca Open Systems Group, ITSD Ministry of Management Services Province of BC To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200107301812.f6UIC8b19427>