From: leonardz@sgi2.mathstat.uoguelph.ca
Newsgroups: comp.sys.hp
Subject: Re: Third party disk drives on HP-UX
Date: 2 Sep 1992 14:34:15 -0400
Organization: Department of Mathematics & Statistics, Univ. of Guelph
NNTP-Posting-Host: sgi2.mathstat.uoguelph.ca
X-Newsreader: Tin 1.1 PL5





I am trying to install a disk & dat subsystem on an HP 720. It has an internal
disk at scsi address 6. 

	I set the disk address to 4 and the tape address to 2. When the 720 comes up, it sees devices at adresses 2,4,6 and boots from 6 as it should. I did a
	mknod on /dev/rmt/0m,0mn and the tape works like a charm.

	Howver, I modified /etc/disktab,/etc/master,/usr/sam/lib/disk_aliases
	as follows:
from disktab :

###############################################
#FUJITSU|M2266
#   vendor:	FUJITSU
#   product id: M2266
#   bytes per block:	   1024
FUJITSU_M2266_noreserve|FUJITSU_M2266_noswap|FUJITSU_M2266|FUJITSU_M2266_noreserve_noswap:\
	:no swap or boot:ns#42:nt#15:nc#1644:\
	:s0#1035720:b0#8192:f0#1024:\
	:se#1024:rm#3600:


from master :

#
2212A		HP_2212A	scsi	single_ended_scsi
2213A		HP_2213A	scsi	single_ended_scsi
PD210S		QUANTUM_PD210S	scsi	single_ended_scsi
PD425S		QUANTUM_PD425S	scsi	single_ended_scsi
S6300.650A	HP_S6300.650A	scsi	single_ended_scsi
1528		MICROP_1528	scsi	single_ended_scsi
1588T		MICROP_1588T	scsi	single_ended_scsi
C2235		HP_C2235	scsi	single_ended_scsi
CDROM-SCSI	CDROM-SCSI	scsi	single_ended_scsi
2266            FUJITSU_M2266   scsi    single_ended_scsi
97560		HP_97560	scsi	differential_scsi


from disk_aliases :

$$$
*
* The following entries form the alias table.
* field 1: product #	field 2: driver name
*
nm		netman
2213A 		scsi
Quantum_210S	scsi
210S  		scsi
lan2		lan01
s2tape 		scsitape
s2disk 		scsi
CentIf		parallel
ram		ramdisc
HP_2212A	scsi
HP_2213A	scsi
HP_S6300.650A	scsi
QUANTUM_PD210S	scsi
QUANTUM_PD425S	scsi
MICROP_1588T	scsi
MICROP_1528	scsi
FUJITSU_M2266   scsi
HP_C2235S	scsi
HP_97560S	scsi
HP_7937		cs80
$$$


	This added the required descriptions of the Fujitsu M2266 disk drive.
	When I enter sam to add the disk, i go through the menus until i get
	to the add a disk menu. When I press enter , the message working comes
	up, lasts for 20-30 seconds, and then the system crashes.

	1 ) Am I doing something oviously wrong ??
	2 ) If not, how do I get to the system core dump to analyse it and see
	    what is going wrong?? On some systems , the system memory dumps to
	    a particular directory, and then upon reboot, you use dbx -?
	    to analyse the core file. Is there a similar procedure here??

	I know the vendor who supplied that disk has suppled 3 already that
	installed perfectly smoothly. I don't see what the difference is and I
	am suspecting flaky hardware, likely the disk as the disk and tape are
	in the same cabinet, and the tape works fine.

	While I am at it, the disk is supposed to be jumpered for asynchronous
transfer mode. Does the HP 720 not support synchronous scsi, or is it the 
combination of Fujitsu and HP that won't work in synchrous transfer mode?


--
						Regards,
						Len Zaifman

Len Zaifman
Information Technology Coordinator, College of Physical and Engineering Science
University of Guelph, Guelph, Ontario. N1G 2W1
phone : (519) 824-4747 xt 6566 
email : leonardz@vm.uoguelph.ca , leonardz@Testarossa.cs.uoguelph.ca
Newsgroups: comp.sys.hp