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From: info-vax@ucbvax.ARPA
Newsgroups: fa.info-vax
Subject: Re: Dual ported TU78s
Message-ID: <5188@ucbvax.ARPA>
Date: Sat, 2-Mar-85 19:49:04 EST
Article-I.D.: ucbvax.5188
Posted: Sat Mar  2 19:49:04 1985
Date-Received: Sun, 3-Mar-85 04:55:10 EST
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Organization: University of California at Berkeley
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From: bellcore!martin@BERKELEY

This is the second 4.2 site that i have worked at with dual ported
TU78's, they work fine. Dual porting is much cheaper than buying
another TU78. We keep the switches on the A/B position and expect
people to come into the machine room and load a tape before typing
a tape write/read command (say cpio, tar, dd, dump etc).
Even with the switch in either the A or B position the other machine
gets an OFFLINE message, which is passed to the user. You can either
educate your users or not, either way it works.

Martin Levy,
Bellcore.