Does ESIX still not support RLL?
Jon Gefaell
jon at turing.acs.virginia.edu
Sat Apr 27 04:53:55 AEST 1991
In article <1991Apr25.200115.12310 at mccc.edu> pjh at mccc.edu (Pete Holsberg) writes:
>In article <3087 at cirrusl.UUCP> Rahul Dhesi <dhesi at cirrus.COM> writes:
>=The following is directed not towards Bill, but towards many Usenet
>=users who assume that RLL is some sort of disk interface standard.
>=It's not! It's just a way of putting bit patterns on the disk
>=surface. And it wasn't invented by Adaptec either. RLL means "run
>=length limited" -- a way of recording bits such that you never have
>=more than m consecutive raw ones or n consecutive raw zeroes. Tape
>
>In fact, what we call RLL here is actually only one of many possible RLL
>schemes. I believe that the "proper" name is "RLL 2,7." And if I
>haven't lost too many brain cells, I think I recall that MFM is RLL 1,3.
>
>Pete
>--
>Prof. Peter J. Holsberg Mercer County Community College
>Voice: 609-586-4800 Engineering Technology, Computers and Math
>UUCP:...!princeton!mccc!pjh 1200 Old Trenton Road, Trenton, NJ 08690
>Internet: pjh at mccc.edu Trenton Computer Festival -- 4/20-21/91
Exactly! and 34 sectors is yielded by 3,9 RLL encoding.
--
____
\ /
\/ The pleasure of satisfying a savage instinct, undomesticated by the ego, is uncomparably much more intense than one of satisfying a tamed instinct. The reason is becoming the enemy that prevents us from a lot of possibilities of pleasure.
S. Freud
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