Does ESIX still not support RLL?
Jon Gefaell
jon at turing.acs.virginia.edu
Sat Apr 27 04:51:45 AEST 1991
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
>drives have used it for years (but they call it GCR or group code
>recording). In the microcomputer world, the Apple II used it on floppy
>disks way back when.
for that matter, ST412/506 interface, MFM drives utilize RLL encoding.
The diferences are in the 'types'(number of zeros allowed?)
of RLL encoding used.
Is this correct?
--
____
\ /
\/ 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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