Hi,

hard disks which have bigger internal sectors than are presented to
the OS will become more common in the future. The WD EARS, for
example, has 4096 bytes sectors internally, and 512 sectors externally.

On this disk, it is important to have partitions aligned on a physical
sector boundary. To do this properly, one needs to know whether sector
numbers start at 0 or 1.

I didn't find that anywhere in the docs.

Greetings
Marc