For those of you involved in developing drivers for disk subsystems, I 
got this in a fortune cookie today:

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The following quote is from page 4-27 of the MSCP Basic Disk Functions
Manual which is part of the UDA50 Programmers Doc Kit manuals:

As stated above, the host area of a disk is structured as a vector of
logical blocks.  From a performance viewpoint, however, it is more
appropriate to view the host area as a four dimensional hyper-cube, the
four dimensions being cylinder, group, track, and sector.
        . . .
Referring to our hyper-cube analogy, the set of potentially accessible
blocks form a line parallel to the track axis.  This line moves
parallel to the sector axis, wrapping around when it reaches the edge
of the hyper-cube.

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Easy once you get it explained, isn't it? ;-)

Gunnar

--
Gunnar Helliesen   | Bergen IT Consult AS  | NetBSD/VAX on a uVAX II
Systems Consultant | Bergen, Norway        | '86 Jaguar XJ6 4.2 Sovereign
gunnar@bitcon.no   | http://www.bitcon.no/ | Vicki who? What .sig virus?