[comp.sys.sun] Moving Sun disk to external case

bob@psitech.com (Bob Posert) (04/20/91)

Here's the scoop:  I bought a Sun 4/330 with an internal 327 Meg embedded
SCSI drive (a Seagate/CDC WREN IV, aka Model 94171).  I then purchased a
Fujitsu 2266A 1.2G drive from R-squared in an external case with power
supply, etc.  For various reasons, I want to put the Fuji in the 330, and
have the Wren in the external case.

The Fuji works fine internally or externally (BTW, $2586, including 3'
SCSI cable, case, power supply, external terminator, and formatting).  The
Wren works fine internally; but externally, probe-scsi finds it, but SunOS
can't seem to find it.  It won't boot from it.  It doesn't mention finding
it when booting from another disk or the ethernet.  Format can't find it.

I called Seagate's tech support; they say that Sun modifies the drives and
I'd have to talk to Sun.  Sun's tech support says that yes, they _do_
modify the drives ("a firmware change"), but they won't help me unless I
buy a Sun case to put it in.  R-squared's tech support had me check to see
that the SCSI code was in the kernel, /dev/sd* was correct, etc., but
they're stuck without knowing what Sun has done to the disk.

So, has anyone moved a WREN IV from within a Sun to an external case?  Any
help would be appreciated.  E-mail or post, and I'll summarize answers to
the net.

Thanks,
I'm bob@psitech.com or uunet!psitech!bob

bob@psitech.com (Bob Posert) (04/24/91)

In a previous article, I write:
>The Wren
>works fine internally; but externally, probe-scsi finds it, but SunOS can't
>seem to find it.  It won't boot from it.  It doesn't mention finding it when
>booting from another disk or the ethernet.  Format can't find it.

Thanks to everyone who responded:
	sblair@upurbmw.dell.com (Steve Blair)
	markm@apex.com(Mark McDonald)
	sukes@eng.umd.edu (Tasuki Hirata)

Mark McDonald came up with:
	Have you tried changing the drive ID?  The 4/330 wants the first
	external disk to be target id 0, i.e., all id select jumpers off.

which fixed the problem.  I don't know why the Fuji works ok as the first
external drive with SCSI ID 2, but as long as it works now I'll leave it
alone.

Note that the 330 will find drive 0 first when probing, and will boot from
it on auto-boot.  If you want to change this, you need to change the
eeprom Boot Device entries.  I can email the details to anyone who needs
them.

Thanks again!

--Bob
I'm bob@psitech.com or uunet!psitech!bob