[nycbug-talk] Reproducible data corruption on 6.1-Stable [Long but please read]

[Jonathan Stewart]

George Georgalis wrote:
> On Thu, Sep 14, 2006 at 09:17:53AM -0400, Jonathan Stewart wrote:
>> George Georgalis wrote:
>>> On Thu, Sep 14, 2006 at 08:20:47AM -0400, Jonathan Stewart wrote:
>>>> Did you mean doing something like
>>>> sudo dd if=/dev/ad4 of=/tmp/temp skip=268435455 count=1
>>>> sudo dd if=/dev/ad4 of=/tmp/temp skip=268435456 count=1
>>>> sudo dd if=/dev/ad4 of=/tmp/temp2 skip=268435456 count=1
>>>>
>>>> to make sure I can read the sectors and the reads come back the same
>>>> each time?  If so then yes to both.
>>>
>>> not sure about the base change
>>> or your device names, but
>>>  if=/dev/rwd0d skip=0xffffffe count=3
>>> is what I had in mind, is ad4 a raw device?
>> No errors, ad4 and ad6 are the 2 base drives used for the RAID stripe.
>> They are on a highpoint rocketraid controller card.
> 
> Are we talking about the same blocks as if the drives where not in a raid?

Yes, the raid device is ar0 while the drives show up as standard ad
devices with this card.

Jonathan