[SunHELP] anyone gotten a 73gig drive to work with am

[Arthur Wouk]

re:

:From: "Michael Lehmann" <maal1 at gmx.de>
:Subject: Re: [SunHELP] anyone gotten a 73gig drive to work with am
:	ultra?
:
:Hello,
:
:> i think. also, sca drives are supposed to self-terminate.
:
:No, they aren't. The termination is integrated in the "backplane" with the 80p
:connectors. If you use an SCA-68p/50p adapter an addtional active terminator
:is required.

i properly terminated after using the afayer. when i placed it in the 611 box, it was i presume properly terminated by the box.
:
:My configuration in an SPARCengine Ultra AXi:
:
:68p connector on system board ---  68p harddisk --- cd-rom drive with 68p-50p
:adapter  --- 68p active terminator
:
:The cable is 68p. The harddisk is either 68p UW-SCSI or 80p (SCA) with 68p-SCA
:adaptor.
:
:> i purchased a 73gig sca hard drive in a sun 611 case some time ago,
:> and tried to attach it to a 'new' ultra-1. it was not recognized, no
:> matter what i tried. i eventually took the drive, attached a 50pin to
:> sca adapter, and put it on a sparc2 which is very reliable, and besides
:> has sformat working on it. it was attached at scsi station 0.
:
:You can try to force single-ended (SE) mode by setting a jumper on the drive.
:Probably the drive remained in LVD (low voltage differential) mode.
:For example the Seagate ST373405LC (73GB) has a "FORCE SINGLE ENDED" jumper.

i have looked over the drive very carefully. this is a

	QUANTUM  ATLAS10K2-TY734J DDD6 

in the usual places for, say, a seagate drive, there are NO jumper positions!
on the bottom i do see two jumpers in place in amongst all the other junk
which shows on a circuit board. i will try to find something from quantum 
about this drive, and hope that those two jumpers have something to do  with
getting it to sense properly.


for clarity: here is sformat's output (done on the sparc2 with the 80-50
converter in place and with a properly terminated scsi chain:

sformat SCSI format/analysis/repair utilities
Release 3.4, Copyright J. Schilling

scsibus0:
c0t0d0	0,0,0	  0) 'QUANTUM ' 'ATLAS10K2-TY734J' 'DDD6' Disk
c0t1d0	0,1,0	  1) 'IBM     ' 'DCHS09F  CLAR09 ' '1919' Disk
	0,2,0	  2) *
c0t3d0	0,3,0	  3) 'IBM     ' 'DCAS-32160      ' 'S65A' Disk
	0,4,0	  4) *
	0,5,0	  5) *
	0,6,0	  6) *
	0,7,0	  7) *
Select target -1 (0 - 3)/<cr>:0
scsibus0 target 0:
c0t0d0	0,0,0	  0) 'QUANTUM ' 'ATLAS10K2-TY734J' 'DDD6' Disk
	0,0,1	  1) *
	0,0,2	  2) *
	0,0,3	  3) *
	0,0,4	  4) *
	0,0,5	  5) *
	0,0,6	  6) *
	0,0,7	  7) *
Select lun -1 (0 - 0)/<cr>:0
scsibus0 target 0 lun 0
Device type    : Disk
Version        : 3
Response Format: 2
Capabilities   : WBUS16 SYNC LINKED CMDQUE 
Vendor_info    : 'QUANTUM '
Identifikation : 'ATLAS10K2-TY734J'
Revision       : 'DDD6'
Device seems to be: Generic CCS Disk.
sformat: I/O error. test unit ready: scsi sendcmd: no error
CDB:  00 00 00 00 00 00
status: 0x2 (CHECK CONDITION)
Sense Bytes: 70 00 02 00 00 00 00 0A 00 00 00 00 04 88 00 00 00 00
Sense Key: 0x2 Not Ready, Segment 0
Sense Code: 0x04 Qual 0x88 (logical unit not ready, cause not reportable) [No matching qualifier] Fru 0x0
Sense flags: Blk 0 (not valid) 
cmd finished after 10.000s timeout 20s
sformat: Drive not ready.