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Article View: comp.sys.ibm.pc.rt
Article #1935

Re: 3rd Party Drive in IBM RT

#1935
From: Jacob Parnas
Date: Sun, 25 Feb 1990 23:39
34 lines
2130 bytes
In article <91.25dc43cf@venus.ycc.yale.edu> newman@suncis.ycc.yale.edu (Andrew N
ewman) writes:
>Ok:
>
>Now I've really done it.  I went ahead and got one of those zippy HUGE
>EESDI drives that cost hardly anything from CDC.  I intend to put it in
>my RT Workstation running ACIS.  The drive I bought is a WREN VI with the
>EESDI controller.  Pertinent specs I have are:
>
>               # of Sectors Per Track: 53
>               # of heads              15
>               # of cylinders          1632
>...

The problem is that the Wren VI ESDI is a 15 Mhz drive.  The EESDI card
only supports up to 10 Mhz.

Wren V's are (to the best of my knowledge) the biggest ESDI disks that
the EESDI card supports (442 MB unformatted).  If you want bigger
disks, get the Adaptek SCSI controller (around $300) and you can
use Wren VI SCSI or Wren VII SCSI.  There is a public domain driver
for the Adaptek SCSI adapter.  The (Seagate/Imprimis/CDC) Wren VI is
766 MB and the Wren VII is 1.2 GB (unformatted).

Note:  This driver only exists for 4.3 BSD/AOS.  No AIX support.

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| Jacob M. Parnas                    | DISCLAIMER: The above message is from |
| IBM Thomas J. Watson Research Ctr. | me and is not from my employer.  IBM  |
| Arpanet: jparnas@ibm.com           | might completely disagree with me.    |
| Bitnet: jparnas@yktvmx.bitnet      \---------------------------------------|
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Message-ID: <1990Feb25.233908.1196@larouch.uucp>
Path: arc1-ca.pugleaf.net!utzoo!censor!geac!torsqnt!jarvis.csri.toronto.edu!cs.utexas.edu!uunet!bywater!acheron!archet!larouch!jparnas
References: <91.25dc43cf@venus.ycc.yale.edu>

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From: jparnas@larouch.uucp (Jacob Parnas)
Newsgroups: comp.sys.ibm.pc.rt
Subject: Re: 3rd Party Drive in IBM RT
Message-ID: <1990Feb25.233908.1196@larouch.uucp>
Date: 25 Feb 90 23:39:08 GMT
References: <91.25dc43cf@venus.ycc.yale.edu>
Reply-To: jparnas@larouch.UUCP (Jacob Parnas)
Organization: Larouch Headquarters, Hopewell Junction, NY
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