I haven't looked at this for years, but if the Windows file-system is not fundamentally different from what it was in the good'ol days of floppy disks and DOS, you need to do a low level read of the sectors where the directory and file structure is kept and then for each file traverse the linked lists which map the clusters where the data is stored and somehow calculate the amount of dispersion of the files over the disk.

All pretty ugly stuff at a low level and most certainly ideal to totally mess up your disks.

CountZero

"If you have four groups working on a compiler, you'll get a 4-pass compiler." - Conway's Law


In reply to Re: measure Win32 disk fragmentation with Perl? by CountZero
in thread measure Win32 disk fragmentation with Perl? by McMahon

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.