On Mon, 17 Feb 2003, Markie wrote:
> You're right :) Sorry.
> file must be nonresident and must not contain any sparces (uninitialized
> What does this mean? :) big words for a 17 year old :$
Nonresident: Bigger than a kilobyte :-) A "resident" file is an
optimisation. Roughly by analogy, it'd be like storing the contents of a
(small) file directly in the inode, rather than in data blocks pointed
to by the inode. Most files are likely to be nonresident. If you create
a file it'll be nonresident.
Most resident data appears to crop up using NTFS' "forked" file ability,
which isn't generally something you hear a lot about.
Not having any spaces: this is what's called a "sparse" file - eg, you
write some bytes, seek forward a gigabyte, and write some more. NTFS has
the ability to record this file with a "hole" in the middle, so it
doesn't require a GB of disk storage. Most files are unlikely to be
jan grant, ILRT, University of Bristol. http://www.ilrt.bris.ac.uk/
Tel +44(0)117 9287088 Fax +44 (0)117 9287112 http://ioctl.org/jan/
Axioms speak louder than words.
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