Darren Pilgrim wrote:
> > > I thought the limit for filesystems was 2TB?
> >
> > The Blocknumber is signed that gives:
> > 2^31 * 512Bytes
> 
> Why sign the blocknumber?  LBA uses an unsigned 32-bit integer,
> allowing 2TB, and IIRC SCSI uses an unsigned integer as well (though I
> can't remember if that one is 32 or 48 bits, or if they've gotten to
> 64 bits by now).

To differentiate between direct (positive) and indirect (negative)
blocks within the inode, and within an indirect block.

-- Terry

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