Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!purdue!gatech!ncsuvx!shumv1!unkydave
From: unkydave@shumv1.uucp (David Bank)
Newsgroups: comp.sys.ibm.pc
Subject: Re: RLL controllers with MFM drives
Message-ID: <4273@ncsuvx.ncsu.edu>
Date: 22 Oct 89 20:16:02 GMT
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Reply-To: unkydave@shumv1.ncsu.edu (David Bank)
Organization: NCSU Computing Center
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 ,.  In response to Brynn Roger (rogers@src.honeywell.com):

       Nope. I don't sell hard drives. I merely install and maintain
them and diagnose them when they go bad. 

       Contrary to your assertion, plated media is NOT the sole
basic difference in RLL-rated drives. The biggest single difference
is in the use of VOICE COIL technology in the armature control
mechanism. This is what allows the mush more closely controlled
head movement demanded by RLL. The plated media simply makes
for a more reliable rusty pie plate.

       Sure, I know people running MFM drives on RLL too. Its
like the car you drive off the lot and it never needs to see a
mechanic. Some RLL drives are just able to do it. You may be running
them at the edge of tolerance, but you are just on this side of
their operational capacity. I never meant to say it was IMPOSSIBLE
to run an MFM drive on RLL. Merely dangerous with your data.

        No, not a blanket statement at all. As I recall, I
qualified it with "probably".

        Oops. Two paragraphs back, 3rd line, "RLL" should be "MFM"
These remote connections are hell on editing.

Unky Dave
unkydave@shumv1.ncsu.edu