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From: krowitz@RICHTER.MIT.EDU (David Krowitz)
Newsgroups: comp.sys.apollo
Subject: Re:  cartridge tape on a server
Message-ID: <8809091332.AA02203@richter.mit.edu>
Date: 9 Sep 88 13:32:46 GMT
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Are you running SR9.7 or an earlier version? The operation of the cartridge
drive got better when we switched to SR9.7 -- it's not great, but the node
doesn't come to a complete stop (which it did with SR9.5 due to a software
bug that had the disk controller and the tape controller using the same
lock flags). Having at least 4MB on the node seems to help, too, since the
node doesn't have to be paging as often while the tape is running.


 -- David Krowitz

krowitz@richter.mit.edu   (18.83.0.109)
krowitz%richter@eddie.mit.edu
krowitz%richter@athena.mit.edu
krowitz%richter.mit.edu@mitvma.bitnet
(in order of decreasing preference)

P.S. These observations come from a DN3000 and DN4000 which have both 350 MB
     disks and cartridge tapes. I assume that the DN3500/4500 use the same
     controllers and I/O bus structure as the DN4000 (which I understand has
     a slightly different bus and the DN3000 -- despite that fact that they 
     are all IBM-AT compatible!).