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Date: Thu, 17 Jan 2013 17:22:26 +0400
From: Alex Povolotsky <tarkhil@webmail.sub.ru>
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To: Mark Felder <feld@feld.me>
Subject: Re: Strange problem with... ZFS? Disk? Controller?
References: <50D56D4B.4060709@webmail.sub.ru> <20121222032541.0ceb9f56@tech304>
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On 12/22/12 13:25, Mark Felder wrote:
> Try running diskinfo -t /dev/...
>
> If it says your device is really slow it's probably dying. I'd suspect it's having trouble seeking.
>
It was a break-in. Some dumb php script running with user privileges 
managed FreeBSD to hang on disk io up to stopping responding to anything 
besides reset.

Alex