[parisc-linux] SCSI Boot Problems on HP C110/9000

[Michael Audette]

Everyone,

Thanks for the help.  I searched back in the forum another month and saw a
very similar message with a response top it that said "sounds like SCSI
termination problem".  I think this is actually a driver problem.  Both
disks are on the internal SCSI chain and internally terminated (2 GB Segate
and a Toshiba CDROM).  I did have SCSI terminator s on the external ports
(HP-UX wouldn't boot without them) (Both the Fast-Wide and the Single
Ended).

The problem suddenly went away when I removed these external SCSI
terminators.  This seems to be incorrect behavior (unless the controller
chip has built-in termination)  Anyhow,  After removing the terminators the
system booted fine.

To answer someone else's' question.  The system did not hang per se, it got
stuck in a loop trying to reset the SCSI ports.  This caused the system to
not completely boot.  Has anyone gotten external SCSI working on a C110?

					-Thanks!

						Mike


-----Original Message-----
From: parisc-linux-admin@lists.parisc-linux.org
[mailto:parisc-linux-admin@lists.parisc-linux.org]On Behalf Of Michael
Audette
Sent: Tuesday, June 18, 2002 4:36 PM
To: parisc-linux@lists.parisc-linux.org
Subject: [parisc-linux] SCSI Boot Problems on HP C110/9000


When the kernel boots it gets hung up trying to probe sda with the
following:

SCSO host 0 abort (pid 0) timed out resetting
SCSI bus is being reset for host 0 channel 9
ncr53c8xx_reset: pid 0 reset_flags=2 serial_number=84
serian_number_at_timeout=84
ncr53c720-0: suspicious SCSI data while resetting the BUS
ncr53c720-0:
dp1,d15-8,dp0,d7-0,rst,req,ack,bsy,sel,ath,msg,c/d,i/o=0X4020029, expecting
0x100

Any way around this.  This drive boots up just fine with the HP-UX10.20 that
is installed on it.

			-Thanks!
			   Mike


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