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From: tbrown@lehi3b15.csee.Lehigh.EDU (Thomas Brown [901015])
Newsgroups: comp.sys.ibm.pc.misc
Subject: Re: Help with RLL install on DTK 10 MHZ AT
Message-ID: <1240@lehi3b15.csee.Lehigh.EDU>
Date: 6 Nov 90 15:17:56 GMT
References: <1990Oct16.100223.7045@pwa-b.uucp> <510003@hprpcd.HP.COM>
Reply-To: tbrown@lehi3b15.csee.Lehigh.EDU (Thomas Brown [901015])
Organization: CSEE Dept. Lehigh University, Bethlehem, PA
Lines: 18

In article <510003@hprpcd.HP.COM> patf@hprpcd.HP.COM (pat fung) writes:
>
>        The Deico controller card does not have on board BIOS. It is an 
>indication it is not a RLL controller. You have 65MB of MFM storage from your
>disk.

The fact that the controller does not use an internal BIOS has absolutely
nothing do to with the encoding method which it uses; if the disk was
intended as a 65MB RLL drive, it can still be formatted under MFM
albeit with lower capacity.  Conversely, MFM-intended drives should *NOT*
be formatted under RLL (only for the reason of reliability).

If the controller does not have it's own BIOS, formatting may be
possible using a program such as Ontrack's Disk Manager or the like,
provided you know the parameters (heads, cyls, precomp, LZ, etc.) 
for your drive.

-Tom