🚀 go-pugleaf

In article <43lf52$bhu@News1.mcs.net>,  <itsinc@mcs.com> wrote:
>	I found some more sources, and it seems we may have ALL been 
>wrong about the partition size limit!  I was pointed to HPFS.ZIP (available 
>at the Hobbes FTP site) which contains the following file:
>
>
>Journal:   Microsoft Systems Journal  Sept 1989  v4 n5 p1(13)
>           * Full Text COPYRIGHT Microsoft Corp. 1989.
>-----------------------------------------------------------------------------
>Title:     Design goals and implementation of the new High Performance File
>           System. (includes related article on B-Trees and B+ Trees)
>Author:    Duncan, Roy.
>(...)
>
>	And guess what Microsoft says the limit is?  2 TERABYTES!  We 
>weren't *too* far off...

Two terabytes is the theoretial maximum, calculated from the fact that
HPFS sectors are 512 bytes, and there can be a maximum of 2^32 sectors on
the volume.


>"IBM-compatible HPFS volumes use a sector size of 512 bytes and have a maximum
>size of 2199Gb (2" sectors)."
>
>	Now, this may be a theoretical limit, I suppose...but if there are people 
>formatting 9 GB drives that's good enough for me.  :)


However, HPFS.IFS imposes smaller limits, with good reasons.  Running CHKDSK
on a large partition takes a lot of time and memory,.  I don't exactly know
how HPFS.IFS does things, but I suspect that large partitions slow it down...



/sj/


Scott Johnson --  Graduate Slave, ECE Department, Oregon State University
Check out my new (but unfinished) Web page--http://www.ece.orst.edu/~johnsos
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