🚀 go-pugleaf

In article <15o0m8INN91l@grapevine.EBay.Sun.COM>, smckinty@sunicnc.France.Sun.COM (Steve McKinty - Sun ICNC) writes:
> 
> Have you checked the terminators? All SCSI busses must have two, and only
> two, terminators. Normally there is one at the CPU end. If you're fitting
> an extra disk alone that disk should have a terminator. I would guess that
> there is some sort of external terminator plug for the SCSI socket
> on the CPU box, so normal practice would be to leave the disk unterminated
> and plug in the external terminator. When you add other devices the terminator
> should be moved to the end of that chain.

Have you ever seen the internal cabling for the 5000/125?  The internal disk
cable on the 3min is shipped terminated.

> > 
> > If I connect an external disk or tape, it then reports that it has six RZ25's
> > connected and nothing else.
> 
> That sounds like one of your external devices has the same SCSI ID as the
> RZ25

Now this points to precisely what is the problem.  The documentation for the
RZ25's is just plain wrong.  To set the SCSI unit id you have to take the
bracket off it and on one side you'll see three jumpers which have set the
drive up to be unit 7.  When one reports it's unit 7 you get N of them and
no other device on the bus gets seen.  Fix up the unit id, put the bracket on
and boot it up.


Boyd Roberts			boyd@prl.dec.com

``When the going gets wierd, the weird turn pro...''