> Thanks for the clarification!
>
> Presumably there are also some limits imposed by the hardware, like
> ATA's 137Gb limit.  I was rather hoping that people might start moving
> towards SCSI (serial or parallel) as that limit drew near, but it
> looks as though ATA's being extended to 48-bit addressing (144Pb).

you mean "b" or "B"?

> Do you happen to know whether SCSI is limited to 32-bit addressing
> (~2.2Tb assuming 512 byte blocks)?  Does NetBSD use 32 bits to address
> blocks on a device?
IMHO yes