3TB disc and block alignment

[Pete French]

> Why may it hurt ? How may it hurt ? Which sector is written to by
> this 'gpart' command ?
>
> As far as I understand, GPT writes some stuff at the beginning and
> the end of the harddisk.

Yup, this is true.

> How/why will the newfs overwrite those parts ?

Because you are also giving it the whole hard disc to write to, instead of
a partition within the hard disc, so you will end up scribbling on what you
wrote with the gpart command.

-pete.