Path: utzoo!mnetor!uunet!husc6!ut-sally!utah-cs!utah-gr!uplherc!sp7040!obie!wsccs!wes
From: wes@wsccs.UUCP (Barnacle Wes)
Newsgroups: comp.unix.microport
Subject: Re: Controller/driver combo... will it work?
Message-ID: <357@wsccs.UUCP>
Date: 22 Mar 88 21:45:13 GMT
References: <3575@killer.UUCP> <4144@ihlpl.ATT.COM> <257@bby-bc.UUCP> <119@hawkmoon.MN.ORG>
Lines: 18
Keywords: Microport
Summary: RLL explained (sort of)

In article <119@hawkmoon.MN.ORG>, det@hawkmoon.MN.ORG (Derek E. Terveer) writes:
> The term RLL has been bandied about a lot, but the
> discussion is somewhat crepuscular to me since i don't know the basics about
> RLL stuff.  Anyone care to indulge me?

Yah, it's simple: RLL stands for Run-Length Limited.  It is a different way
of formatting and storing the bits on the disk surface (the "standard" way,
at least with ST506-type winchester disks, is Modified Frequency Modulation,
or MFM, which also stands for Mother F***ing Magic).  The gist of it is that
you can store more bits in the same space, usually resulting in approxi-
mately 27 sectors per track, rather than the "standard" 17 sectors/track.

	Wes Peters
-- 
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