SCSI tape drive with Adaptec adapter...

[Gregory Gulik]

Charles Curley wrote:
> Do you have parity enabled or disabled consistently on that SCSI bus?
> I.e. all devices have parity enabled or all have it disabled,
> including the HA. Parity enable on this drive is jumpers 7 and 8, next
> to the three address bit jumpers. Parity enable in the 2940 is via the
> BIOS firmware.

Ok, the parity error is now fixed.  I had parity enabled in the BIOS and 
disabled on the drive.  The parity error is now gone.

However I still can't get to the tape drive.  I tried both the new and 
old drivers.

Aug 27 12:57:31 penguin kernel: ACPI: PCI interrupt 0000:00:0a.0[A] -> 
GSI 11 (level, low) -> IRQ 11
Aug 27 12:57:31 penguin kernel: scsi5 : Adaptec AIC7XXX EISA/VLB/PCI 
SCSI HBA DRIVER, Rev 6.2.36
Aug 27 12:57:31 penguin kernel:         <Adaptec 2940 SCSI adapter>
Aug 27 12:57:31 penguin kernel:         aic7870: Single Channel A, SCSI 
Id=7, 16/253 SCBs
Aug 27 12:57:31 penguin kernel:
Aug 27 12:57:49 penguin kernel: (scsi5:A:4): 5.000MB/s transfers 
(5.000MHz, offset 15)
Aug 27 12:57:49 penguin kernel:   Vendor: CONNER    Model: CTT8000-S 
      Rev: 1.17
Aug 27 12:57:49 penguin kernel:   Type:   Sequential-Access 
      ANSI SCSI revision: 02
Aug 27 12:57:49 penguin kernel: Attached scsi tape st0 at scsi5, channel 
0, id 4, lun 0
Aug 27 12:57:49 penguin kernel: st0: try direct i/o: yes (alignment 512 
B), max page reachable by HBA 1048575
Aug 27 12:57:49 penguin kernel: Attached scsi generic sg5 at scsi5, 
channel 0, id 4, lun 0,  type 1

ACPI: PCI interrupt 0000:00:0a.0[A] -> GSI 11 (level, low) -> IRQ 11
scsi5 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36
         <Adaptec 2940 SCSI adapter>
         aic7870: Single Channel A, SCSI Id=7, 16/253 SCBs

(scsi5:A:4): 5.000MB/s transfers (5.000MHz, offset 15)
   Vendor: CONNER    Model: CTT8000-S         Rev: 1.17
   Type:   Sequential-Access                  ANSI SCSI revision: 02
Attached scsi tape st0 at scsi5, channel 0, id 4, lun 0
st0: try direct i/o: yes (alignment 512 B), max page reachable by HBA 
1048575
Attached scsi generic sg5 at scsi5, channel 0, id 4, lun 0,  type 1

> Also, you have firmware rev 1.17. You might want to upgrade it. I seem
> to recall problems with 1.17. I have 1.22, and there may be even more
> recent firmware.

I'll try that next.

Now I remember why I avoid SCSI...

-- 
Greg Gulik                                 http://www.gulik.org/greg/
greg @ gulik.org