Another WTF moment

[Adrian Chadd]

Hi,

Wow, I didn't even know this existed!

Would you mind filing a doc PR with this information, along with how
you figured out it was a HPA?

I'm sure this is going to come up from time to time and it'd be great
if someone would take the doc PR and turn it into a FAQ entry.

Thanks,



Adrian


On 16 December 2012 14:08, Ronald F. Guilmette <rfg at tristatelogic.com> wrote:
>
> In message <1355691233.1198.126.camel at revolution.hippie.lan>,
> Ian Lepore <freebsd at damnhippie.dyndns.org> wrote:
>
>>On Sun, 2012-12-16 at 12:01 -0800, Ronald F. Guilmette wrote:
>>> So, um, WTF?  One ST380011A is 156299375 sectors big, and the other one
>>> is 156301488 big.
>>>
>>> How exactly does this happen?
>>
>>Assuming the 3.06 and 3.54 are firmware revision numbers, one might
>>speculate that ongoing testing showed higher sector failure rates than
>>intially expected, and thus newer firmware sets aside a few more sectors
>>as spares.
>
> Well, as it turns out, no.
>
> I did some more research and managed to find out that the discrepancy
> is apparently due to the presence of a Host Protected Area (HPA) on the
> first drive.
>
> I don't know who or what created this HPA on that drive, but I do suspect
> that it was Windoze.  (I have WindowsME and also Windows2000 partitions on
> that drive, and both of those OSese were installed onto that drive at various
> prior points in time.)
>
> So anyway, nevermind.
>
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