Does this disk/filesystem layout look sane to you?

[Andrew Reilly]

On Wed, Jun 17, 2009 at 04:53:12AM +1000, Peter Jeremy wrote:
> On 2009-Jun-15 09:57:39 +0100, Pete French <petefrench at ticketswitch.com> wrote:
> >In my expereince all the ones from the same manufacturer and model are
> >exactly the same size. Admittedly I only ever buy SCSI, but that
> >shouldnt make too much difference should it ?
> 
> I have 3 Samsung HD103UJ disks and they have two different sizes:
> two are 1953523055 and the third is 1953525168 sectors

I bought a pair of identical WD 750G SATA drives the other day
and was surprised to discover that they were different sizes:

ad4: 715403MB <WDC WD7500AACS-00D6B1 01.01A01> at ata2-master SATA150
ad6: 715404MB <WDC WD7500AACS-00D6B1 01.01A01> at ata3-master SATA150

Luckily for me I built the file systems on ad4, and added ad6 to
the gmirror configuration.  I suspect that it would have been
unhappy if I'd done it the other way around.

Cheers,

-- 
Andrew