Very Computer

I have an adaptec pci scsi card (scsi-2 internal 50 pin), connected to a
scsi cdrom and a scsi cd writer using the tulip driver.  ok so far.  

I've been using this configuration for several months along with an ide
hard disk without a problem and decided to try out a scsi disk.  I
disconnected the cdrom, since the cd-r provides termination, and
connected the scsi disk in-line.  The scsi disk has a 68 pin connector
so I used a 50 pin to 68 pin converter.

The disk is a used ibm DFHS S2W 68, unitized, single-ended.  It was
tested ok before I got it.  It spins up, but is not detected by the scsi
driver.  (by the way, I also tried the drive on a windows machine, with
similar results, i.e. nothing, but the linux machine is the only one
that shows me detail of what has been detected on the scsi chain, i.e.
the cd-r, but not the disk).

Is anyone familiar with this drive ?  Do I need to set any jumpers other
than the scsi-id ? (there are a bunch of them all documented on the ibm
site).

Is it possible that my scsi card will not support the 68 pin scsi disk
?  I'm not all that familiar with scsi, and this is the first time I've
experimented with a scsi disk.

thanks in advance.

Dave Thompson

There should be no trick.  Confirm your termination settings of the hard
drive (everything - TERMPWR and TERM - off if you're using the CD-R for
termination).  Also, ensure the SCSI ID of the hard drive is 7 or less.  
Failing that, ensure your SCSI cable is of decent quality and possibly
consider using an external, active terminator.

Mike.

well, no luck.  I tried the disk by itself with a one-connector cable,
with an external, active, passthru terminator.  nothing.  the scsi-id is
zero.  I also tried scsi-id 4.

The adaptec card supports scsi i & ii -- no problem there, is there ?
does it have to support scsi iii ?

Dave Thompson