🚀 go-pugleaf

In article <1gudr6INNm83@tamsun.tamu.edu> lehmann@cs.tamu.edu (Mark A Lehmann) writes:
>I would like to change the SCSI and LUN # on my Supra 20 Mg hard drive.
>My father graciously bought me a ICD/Quatum drive to replace my destroyed
>Supra 60MG drive.  Now I want to occasionally connect my 20Mg drive to 
>my ICD/Quantum drive to backup my data.  Does anyone know how to change
>the Supra drive so that I can boot with the ICD/Quantum drive and then
>later turn on the Supra 20Mg drive to backup some data?

The SCSI ID number is usually set by manually moving a jumper on the
hard drive's controller board. If the drive is an embedded-controller type,
then you probably can't change the LUN at all, it's hardwired as zero. You
need to open up the case, see what kind of physical drive is present, and
then find the manufacturer's data sheet for that drive to get the required
configuration info. (Just saying "Supra" doesn't tell anything; Supra and ICD
and all the other companies that sell pre-packaged hard drives just buy bare
drives from any number of sources, tack on their host adapter, and then mount
it inside a case. Your "Supra 20 MB" drive could be a Seagate, Miniscribe,
Micropolis, or one of a few dozen other mechs. If it's not an embedded
controller type, then it probably has an Adaptec SCSI controller, but that
could be for MFM or RLL drives, etc. etc....)
-- 
  -- Howard Chu @ Jet Propulsion Laboratory, Pasadena, CA

There's a narrow border between genius and insanity, but I'm a dual citizen.