Re: Defragging a directory?

[nparker@cie-2.uoregon.edu (Neil Parker)]

In article <55ttr7$n5g@news.emi.com> drsmooth@relex.com writes:
>[...]
>I heard the UniDisk 3.5 goes at different speeds for accessing
>different parts of the disk.  If so, it would be preferable to put the
>subdirectory on a part of the disk that is spun at high speeds?

I seriously doubt it.  Yes, the disk spins faster when the head is over
the inner tracks, but the data are always tranferred at the same rate (0.5
bits/usec) no matter how fast the disk is spinning.  So reading a directory
block should take exactly the same amount of time no matter what track the
block is on.

The reason for the variable spin rate is to fit more data on the outer
tracks.  Track 80 (the innermost track) has 8 blocks per side, and track
0 (the outermost track) has 12 blocks per side.

               - Neil Parker
-- 
Neil Parker, nparker@{cie-2,cie}.uoregon.edu, http://cie-2.uoregon.edu/~nparker

     "Evolution is vastly overrated."  -- Ambassador Delenn, _Babylon_5_