Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!bbn!ginosko!duane
From: duane@ginosko.samsung.com (Andrew Duane)
Newsgroups: comp.sys.dec
Subject: Re: DS 3100 serial ports and other
Summary: Wren SCSI disks
Message-ID: <1533@ginosko.samsung.com>
Date: 20 Jun 89 13:11:36 GMT
References: <2390@blake.acs.washington.edu> <5170@decvax.dec.com>
Organization: Samsung Software America, Inc.
Lines: 27

In article <5170@decvax.dec.com>, rsp@decvax.dec.com (Ricky Palmer - (603)881-0370 - ZK3-3/T74) writes:
> I have seen problems with Wren V's on the DS3100.
> The problem is that the Wren does a seek, disconnects,
> and never reselects the initiator (in this case the 3100).
> Various people I have talked with are looking into getting
> a microcode fix from CDC. At one point I was told that
> microcode 5466 worked correctly with "fast machines"
> but this does not appear to be accurate. The problem appears
> quite readily when using the Wren in synchronous mode with
> the cache enable bit turned on (maximum performance mode).
> ---   Ricky Palmer	 Ultrix Advanced Development
> ---   Digital Equipment Corporation
> ---   Nashua, New Hampshire
> ---   ... One of the fathers of PMAX ...

We have just finished connecting a set of RIGIDYNE (the 3.5"
subsidiary of CDC) drives into our 3100's. Are we likely to
see this same problem, or is it restricted to the synchronous
mode drives like the Wren V's?


Andrew L. Duane (JOT-7)  w:(508)-685-7200 X122  h:(603)-434-7934
Samsung Software America	 decvax!cg-atla!ginosko!duane
1 Corporate Drive			  uunet/
Andover, MA.   01810

Only my cat shares my opinions, and she's breaking in the new help.