SUMMARY: SCSI Expansion on 2100 system

From: George Gallen <ggallen_at_slackinc.com>
Date: Wed, 15 Jan 97 14:38:00 EST

According to DEC, we only have 1 SCSI card in our system, and it hooks
to both the external and the internal bay + storage works (set for split
bus).
Because we only use a short external cable for our 8mm drive this
configuration works, however if we wanted to expand our external or add
more than (1) drive internally we would need another SCSI Card, so it
seems we will be purchasing another SCSI card.

Thanx to all who replied.
George Gallen
ggallen_at_slackinc.com

Original Post:


We are attempting to add (2) 4GB drives to our 2100, currently our setup
is (4) 2.1GB, (1) cdrom, (1) external 8mm drive. When I do a show config
I'm seeing all 6 drives above on the same SCSI card. According to the
"manual" for the 2100, you can either expand the SCSI into a storage
works
box OR expand externally. Now what I don't get is how can we be setup
with both an external drive and an internal storage works bay all on the
same SCSI card? Within the storagewords box all (4) RZ28s are on the
same bus (every other one). If we had the dual bus SCSI card, wouldn't
the 8mm drive show up in the config with a different bus code? see below:

SLOT
 0 21040-AA ewa0.0.0.0.0 08-00-2b-e6-07-ed
 1 NCR53C810 pka0.7.0.1.0 SCSI ID 7
    dka0.0.0.1.0 RZ28M
    dka100.1.0.1.0 RZ28M
    dka200.2.0.1.0 RZ28M
    dka300.3.0.1.0 RZ28M
    dka600.6.0.1.0 RRD45
    mka500.5.0.1.0 EXABYTE DRIVE 8mm

I haven't opened up the unit, so I don't know where the cables all run
from/to.

Any ideas?
George Gallen
ggallen_at_slackinc.com
Received on Wed Jan 15 1997 - 23:20:15 NZDT

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