Adaptec SCSI card and Seagate DAT drive

[Paul Branston]

I have installed Redhat 5.0 on a Compaq at work, I was given
an Adaptec 2940U PCI SCSI card (not my choice since its not
fully supported).
 
The SCSI card is not recognised at boot time and when I try
to insmod the driver the card is seen but then the driver
never initialises. It seems to go round an endless loop
trying to find the attached SCSI devices.

An excerpt from /var/log/messages which is totaly
incomprehensible to me. Are there any SCSI gurus there who
could point me in the right direction?  The card has been tried
with active termination on and off, the DAT drive is internal and
is jumpered as the final device on the bus (there are no others). 
Termination is enabled in the BIOS. 
 
May 12 14:18:17 rannoch kernel: aic7xxx: <Adaptec AHA-2940A Ultra SCSI host adapter> at PCI 13
May 12 14:18:17 rannoch kernel: aic7xxx: BIOS enabled, IO Port 0x1000, IO Mem 0x41000000, IRQ 11
May 12 14:18:17 rannoch kernel: aic7xxx: Single Channel, SCSI ID 7, 3/3 SCBs, QFull 8, QMask 0xf
May 12 14:18:17 rannoch kernel: scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 4.1/3.2
May 12 14:18:17 rannoch kernel: scsi : 1 host.
May 12 14:18:17 rannoch kernel: scsi0: Scanning channel A for devices.
May 12 14:18:23 rannoch kernel: scsi : aborting command due to timeout
: pid 0, scsi0, channel 0, id 0, lun 0 Test Unit Ready 00 00 00 00 00
May 12 14:18:23 rannoch kernel: (scsi0:0:0) Abort_reset, scb flags 0x1, while idle, LASTPHASE = 0x1,
SCSISIGI 0x0, SEQADDR 0x162, SSTAT0 0x4, SSTAT1 0x0
May 12 14:18:23 rannoch kernel: (scsi0:0:0) Queueing an Abort SCB.
May 12 14:18:24 rannoch kernel: SCSI host 0 abort (pid 0) timed out - resetting
May 12 14:18:24 rannoch kernel: SCSI bus is being reset for host 0 channel 0.
May 12 14:18:24 rannoch kernel: (scsi0:-1:0) Reset device, active_scb 0
May 12 14:18:24 rannoch kernel: scsi0: (targ -1/chan A) matching scb to (targ 0/chan A)
May 12 14:18:24 rannoch kernel: scsi0: Resetting current channel A
May 12 14:18:24 rannoch kernel: scsi0: Channel reset, sequencer restarted
May 12 14:18:24 rannoch kernel: (scsi0:0:0) Aborting scb 0
May 12 14:18:31 rannoch kernel: SCSI host 0 abort (pid 0) timed out - resetting
May 12 14:18:31 rannoch kernel: SCSI bus is being reset for host 0 channel 0.
May 12 14:18:31 rannoch kernel: (scsi0:0:0) Abort_reset, scb flags 0x1, while idle, LASTPHASE = 0x1, SCSISIGI 0x0, SEQADDR 0x162, SSTAT0 0x4, SSTAT1 0x0
May 12 14:18:31 rannoch kernel: (scsi0:0:0) Queueing an Abort SCB.
May 12 14:18:33 rannoch kernel: SCSI host 0 channel 0 reset (pid 0) timed out - trying harder
May 12 14:18:34 rannoch kernel: SCSI bus is being reset for host 0 channel 0.
May 12 14:18:34 rannoch kernel: (scsi0:-1:0) Reset device, active_scb 0
May 12 14:18:34 rannoch kernel: scsi0: (targ -1/chan A) matching scb to (targ 0/chan A)
May 12 14:18:34 rannoch kernel: scsi0: Resetting current channel A
May 12 14:18:34 rannoch kernel: scsi0: Channel reset, sequencer restarted
 
 
 
Any help would be appreciated.

 
Paul.

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