Re: recovering from a controller failure

[Berkey B Walker <berk@panix.com>]

Good find, Richard.  Simplifies things a lot.  I liked the phrase 
"Abusively looping"  , as that was a technique I used to use (30 yr. ago)
b-


Richard wrote:
> Kyler Laird wrote:
>
>> I'd like to know if this is something I can recover.  I do have backups
>> but it's a huge pain to recover this much data.
>
> This happened to me before I discovered that LSI SAS1068E no longer 
> reliably tolerate querying via smartd/smartctl.
>
> Have a look at https://bugzilla.kernel.org/show_bug.cgi?id=14831
>
> and there is a patch that seems to fix it here:
>
> http://lkml.org/lkml/2010/4/26/335
>
> Use hdparm if you need serial numbers.
>
> In the the half dozen or so tests I have done, where more than 2 
> drives have been thrown out of md RAID6 arrays due to these controller 
> resets,
> reassembly using --force has worked with no data corruption, but this 
> may have been good luck.
>
> Regards,
>
> Richard
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