GPT and disk alignment

[Jeremy Chadwick]

On Tue, Jun 07, 2011 at 11:29:32PM -0500, Mark Felder wrote:
> On Tue, 07 Jun 2011 22:27:24 -0500, Robert Simmons
> <rsimmons0 at gmail.com> wrote:
> 
> >Do all HDDs that have 4KB per LBA present themselves to the OS as
> >having 512 bytes per LBA?
> 
> No
> 
> >What about SSDs that have 1024 bytes per LBA?
> 
> Not sure, but I do know that not all flash media have the same bytes
> per LBA internally. Some are 1K, some 4K, some even 8K. GPT is
> definitely the way to go if you want to make sure you're aligned.

Maybe I've misread what you've wrote, but since when was GPT a
requirement for partition boundary alignment?

-- 
| Jeremy Chadwick                                   jdc at parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                   Mountain View, CA, US |
| Making life hard for others since 1977.               PGP 4BD6C0CB |