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echo: os2prog
to: Rob Hamerling
from: George White
date: 1996-02-02 20:10:00
subject: Cluster algorithm

Hi Rob,

You wrote to me:

RH>MR>Is there anything wrong with this *other* than it not taking into
RH>MR>account th 12-bit FAT of a <16MB drive?

RH> GW> Yes. The minimum cluster size on 16-bit FAT is 4 sectors (2048
RH> GW> bytes) (another Microsoft odditity :-( ).

RH>Sorry, this is not quite correct. DOS or OS/2 allows smaller cluster-sizes,
RH>but 'Format' does not give you an option. Long time ago I
RH>wrote a program to bypass this limitation. With this
RH>program I can modify any volume (on harddisk or diskette)
RH>and choose for 1, 2, 3 or any other number of
RH>sectors/cluster (of course it does not allow you to exceed
RH>the 65500+ number of clusters). And DOS or OS/2 do not
RH>complain about this 'odd' partition size (apart from
RH>CHKDSK, maybe).
RH>So for example a 60 MB partition can have a 1 KB clustersize.

OK. Understood. I _did_ say it was another Microsoft oddity.
I wonder why they chose the limits they use in the format program?

George

 * SLMR 2.1a * Lawyers: The larval stage of politicians.

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