Re: kernel patch support large fat partitions

From: H. Peter Anvin (
Date: Sat Jan 05 2002 - 15:40:51 EST

Followup to: <>
By author: Vijay Kumar <>
In newsgroup:
> Using 28bit cluster numbers and 65536 cluster size I could go upto 16TB
> which is lot more than what I wanted. So right now I have no problem with
> the on-disk format of a fat partition. Nevertheless with hard drives prices
> going down dramatically it may not be too long before we hit the limit.
> Regards,
> - Vijay

That's Microsoft's problem -- that's a fundamental limit of the format
they defined. The fact that they defined it in the first place is
part of the problem (the only way you can make a FAT filesystem work
*well* is by loading the entire FAT into memory ahead of time, and
"FAT32" breaks that), instead of creating a more sensible

(FWIW, the reason they used to justify FAT32 was "it would be too much
work to make DOS handle NTFS", as if those were the only options...)


<> at work, <> in private!
"Unix gives you enough rope to shoot yourself in the foot."	<>
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