Phil Crown wrote in a message to Mike Ruskai:

 MR> The reason I ask is because I have a 60MB FAT partition with 2048 byte
 MR> clusters, but according to my reasoning, it should have only 1024 byte
 MR> clusters.

 PC> I made a 32 meg C: partition with FDISK for my DOS/Win stuff
 PC> thinking I would get 1024 byte clusters, but ended up with
 PC> 2048 byte clusters and 33.????? megs of diskspace.

Your 32 MB was small enough to be a Type 4 FAT partition.  A slightly
larger partition would have been allocated as a Type 6 FAT partition, and
this would have used clusters more efficiently.  Support for Type 6 was
added in DOS 4.0, borrowing from Compaq's proprietary scheme in their DOS
3.31.

 PC> I don't know the algorithm for calculating cluster size, but
 PC> I think to get 1024 byte clusters the partition must be less
 PC> than 32 megs.

It varies by partition type.

 PC> I've since converted to all HPFS.

Good move.
 
-- Mike


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