Adding third Sun shoebox to 3/60
Douglas R. East
dre at umn-cs.CS.UMN.EDU
Thu Apr 27 16:12:35 AEST 1989
I'm fairly new to a Sun environment and I need a little help configuring
the disk subsystems of a Sun 3/60. In particular, I have the following
questions:
1. Can more than two shoeboxes be placed on the SCSI port? According to
the Mass Storage Systems manual, only two can be--a unit with the 1/4"
tape plus an add-on unit. But this doesn't make a lot of sense to me,
after all, what is SCSI for? I would like to place a third 70M shoebox
since I happen to have one laying around.
2. If more than two can be on the bus, how do you set the target and unit
inside the shoebox. I can't find anything in the documentation I have
that shows how to set up the jumpers. The two shoeboxes currently on the
3/60 are targets 0 and 1, both units 0 (this corresponds to drives 0 and
8). The extra shoebox is configured as target 1, unit 0 (drive 8). I
would like to configure it as target 0, unit 1 (drive 1).
3. If 2. is possible, does the last shoebox (presumably target 0, unit 0)
need to be terminated in any way?
I appreciate any help regarding this manner.
Thanks in advance,
Doug East
ARPA: dre at umn-cs.cs.umn.edu
Phone: (612) 625-5856
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