Re: recovering from a controller failure

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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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