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Date: Tue, 30 Oct 2012 14:37:55 +0000
From: Paul Wootton <paul-freebsd@fletchermoorland.co.uk>
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To: Dennis Glatting <freebsd@penx.com>
Subject: Re: ZFS RaidZ-2 problems
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On 10/30/12 12:04, Dennis Glatting wrote:
> I've had this problem too. Here is what I can tell you for my case. 
> ... I replaced the card, the cable, and the disks themselves leaving 
> only one other possibility -- the power supply. The faulting array was 
> on a separate cable from the power supply. I replaced the power 
> supply, going from a 1,000W to 1,300W, and the power cables to the 
> disks. Not a problem since.

While I can accept that I might have a bad power supply. or cables, my 
main concern is that I have only 1 drive showing as "Unavail" on a 
RAIDZ-2 and the pack is showing "Faulted".
I would have expected that pack to continue working with 2 bad drives, 
and would have failed if I had 3rd one fail

Paul