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Re: Problems with AHA2940AU

daemon@ATHENA.MIT.EDU (R.O. =?ISO-8859-1?Q?Bl=E4ttner" ?=)
Tue Sep 16 00:37:39 1997

Date: 	Mon, 15 Sep 1997 18:40:02 +0200
From: "R.O. =?ISO-8859-1?Q?Bl=E4ttner" ?= <rolf.blaettner@nuernberg.netsurf.de>
To: tgoltz@mediaone.net
CC: linux-scsi@vger.rutgers.edu

----------------------------------------

Tom Goltz <tgoltz@mediaone.net> wrote at Sun, 14 Sep 1997 23:38:50
-0400:

> I'm having trouble with an Adaptec AHA 2940AU (Narrow, Ultra) controller in
> a Dell Dimension P100t computer system.  The SCSI bus has a Fujitsu 4gb HD,
> a NEC SCSI CD-ROM and an HP DAT drive.  The harddrive and CD-ROM work
> great, but almost anything I do to the tape drive generates the following
> information:

> I'm running 2.0.31 (Prepatch-9)

> Any suggestions?

> First I've enclosed the bootup information for the machine:

> Sep 14 12:19:30 minerva kernel: Console: 16 point font, 400 scans

[ ... deleted ... ]

> Sep 14 12:19:30 minerva kernel: aic7xxx: <Adaptec AHA-2940A Ultra SCSI host
> adapter> at PCI 15
> Sep 14 12:19:30 minerva kernel: scsi0 : Adaptec AHA274x/284x/294x
> (EISA/VLB/PCI-Fast SCSI) 4.1/3.2
> Sep 14 12:19:30 minerva kernel: scsi : 1 host.
> Sep 14 12:19:30 minerva kernel:   Vendor: FUJITSU   Model: M2954S-512
>  Rev: 0147
> Sep 14 12:19:30 minerva kernel:   Type:   Direct-Access
>  ANSI SCSI revision: 02
> Sep 14 12:19:30 minerva kernel: Detected scsi disk sda at scsi0, channel 0,
> id 0, lun 0

O.K., FUJITSU DISK is seen at SCSI-Id 0

> Sep 14 12:19:30 minerva kernel:   Vendor: NEC       Model: CD-ROM DRIVE:500
>  Rev: 2.8
> Sep 14 12:19:30 minerva kernel:   Type:   CD-ROM
>  ANSI SCSI revision: 02
> Sep 14 12:19:30 minerva kernel: Detected scsi CD-ROM sr0 at scsi0, channel
> 0, id 1, lun 0

O.K., NEC CDROM is seen at SCSI-Id 1


> Sep 14 12:19:30 minerva kernel:   Vendor: HP        Model: C1533A
>  Rev: A612
> Sep 14 12:19:30 minerva kernel:   Type:   Sequential-Access
>  ANSI SCSI revision: 02

?!?, HP DAT is seen, but no message about it's SCSI-Id

> Sep 14 12:19:30 minerva kernel: scsi : detected 1 SCSI tape 1 SCSI cdrom 1
> SCSI disk total.
> Sep 14 12:19:30 minerva kernel: SCSI device sda: hdwr sector= 512 bytes.
> Sectors= 8498506 [4149 MB] [4.1 GB]

[ ... deleted ... ]

> About 20 seconds after I issue the 'mt -f /dev/st0 erase' command, I get
> the following:

> Sep 14 12:21:52 minerva kernel: scsi : aborting command due to timeout :
> pid 2612, scsi0, channel 0, id 0, lun 0 Write (6) 05 c0 83 02 00

Here, a write to SCSI-Id 0 fails (what is at ID 0: DISK or DISK and DAT
?)

My suggestion: possibly Your HP-DAT drive uses SCSI-Id 0 too ?
This would result to conflict with Your DISK.
Check the jumpering of HP-DAT drive - if it's jumpered to ID 0,
You have to change this to 2,3,4,5, or 6 (the controller itself
is normally at ID 7).

[ ... deleted ... ]

> Tom Goltz
> Software Engineering Services
> (508) 863-1175
> tgoltz@computer.org

Hope, I could help You !

- Rolf -

----------------------------------------
dipl.phys. Rudolf Otto Blaettner
Am Schuetzengraben 28 A
D 91074 Herzogenaurach
Germany
rolf.blaettner@nuernberg.netsurf.de
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