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SubjectRe: FYI: RAID5 unusably unstable through 2.6.14
Martin Drab wrote:
> On Fri, 3 Feb 2006, Phillip Susi wrote:
>
>> It looks like the problem is in that controller card and its driver. Was this
>> a proprietary closed source driver?
>>
>
> No, it was the kernel's AACRAID driver (drivers/scsi/aacraid/*). And I've
> consulted that with Mark Salyzyn who told me that it is the problem of the
> upper layers which are only zero fault tollerant and that driver con do
> nothing about it.
>

That's a strange statement, maybe we could get some clarification on
it? From the dmesg lines you posted before, it appeared that the
hardware was failing the request with a bad disk sense code. As I said
before, normally Linux has no problem reading the good parts of a
partially bad disk, so I wonder exactly what Mark means by "upper layers
which are only zero fault tollerant"?



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