Re: Debugging a strange array corruption

[Brad Campbell <brad@wasp.net.au>]

On 14/12/10 17:22, Roman Mamedov wrote:
> On Tue, 14 Dec 2010 16:10:07 +0800
> Brad Campbell<brad@wasp.net.au>  wrote:
>
>> The drives are all on separate channels. 8 are on a pair of Marvell 88SX7042
>> controllers and 2 are on a SIL3132. This has occurred since I upgraded the
>> mainboard (and kernel at the same time - nothing like throwing more
>> variables in the mix) and its effects were subtle enough that I missed them
>> until it had successfully rotated out all of my good backups with broken
>> data. Lesson learned.
>
> I'd suggest that you try moving two disks away from SiI3132, change your
> setup so that at most ONE port on that controller is used, or none at all.
>
> Some time ago there was a report of data corruption with controllers using
> that chip when both ports simultaneously read at full speed:
> http://forum.ixbt.com/topic.cgi?id=11:35147:1200#1200 (in Russian)
> Perhaps problem not in the chip itself, but in some variations of
> schematics/components/soldering, because only two of five supposedly identical
> boards the reporter bought were corrupting data in that way, one much
> more often than the other.
>

And in the prior incarnation I was only using 1 port on that controller so the problem would never 
have manifested itself. Thanks, at least I have something to try.

Regards,
-- 
Dolphins are so intelligent that within a few weeks they can
train Americans to stand at the edge of the pool and throw them
fish.