ted@hpwrce.HP.COM ( Ted Johnson) (03/11/89)
Does anyone know what kind of disk space allocation algorithm the Mac O.S. uses? Is it contiguous, linked, indexed, or something completely different? -Ted
amanda@lts.UUCP (Amanda Walker) (03/14/89)
ted@hpwrce.HP.COM ( Ted Johnson) writes:
Does anyone know what kind of disk space allocation algorithm
the Mac O.S. uses? Is it contiguous, linked, indexed, or
something completely different?
-Ted
Well, the old file system (MFS) used a linked-block system sickeningly
similar to MS-DOS. The new file system (HFS) uses a better scheme
involving (effectively) a linked list of extents for each file, each of
which is a contiguous area on disk. Inside Macintosh Volume IV has a
fairly detailed discussion of this.
--
Amanda Walker, InterCon Systems Corporation
amanda@lts.UUCP / ...!uunet!lts!amanda / 703.435.8170
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