On 11/11/2018 05:31 PM, Tomas Kuchta wrote:
Disks we're not limited to <3 TB on 32b systems. The only limit there ever
was old MS FAT.

The 32 bit limit that was mentioned in an Ubuntu forum relates to some USB<->SATA converters. Apparently some controllers have internal sector registers that are only 32 bits.

Number of 512 byte sectors in 3 TB drive
3e12 / 512 = 5.9e9 sectors

Assuming 32 bit wrapping (modulo 2^32)
5.9e9 - 2^32 = 1.6e9 sectors

Drive size after wrapping
1.6e9 * 512 = 801 GB


galen
--
Galen Seitz
gal...@seitzassoc.com
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