On Thu, May 16, 2002 at 10:57:35AM +0930, Greg 'groggy' Lehey wrote:
> Most of the block I/O subsystem works with 32 bit signed sector
> numbers.  In particular, IIRC, (small) negative values are used to
> indicate error conditions.  We've tried this in FreeBSD, and we've
> never got beyond 1 TB.  I suspect it's possible to get almost to 2 TB
> (ignoring sector numbers which correspond to error numbers), but I
> expect it would be quite a bit of work, and it would give rise to
> compatibility issues.

Maybe we could just go to 64bits in the kernel, changing the int32_t to
u_int32_t in the on-disk filesystems structures ?
This would give us 2T instead of 1 ...

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
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