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Date: Sun, 24 Jul 2011 10:12:57 +0400
From: Lev Serebryakov <lev@FreeBSD.org>
Organization: FreeBSD Project
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To: Alexander Motin <mav@FreeBSD.org>
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Cc: lev@FreeBSD.org, freebsd-hardware@freebsd.org
Subject: Re: ahci.ko / geom_mirror / zfs hangs up system when one of HDDs
	fauilts.
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Hello, Alexander.
You wrote 24 =E8=FE=EB=FF 2011 =E3., 2:29:12:

>>   I'm not sure, that it is possible to update firmware on these
>> drives. And MoBo BIOS looks like latest one.
> Then I have no idea what to do about the cause of errors. What's about
> consequences, I've tried to simulate alike problem (device detected, but
> doesn't respond). Recovery (dropping failed device) took a lot of time,
> but finally (after about 10 minutes) it succeeded and ZFS continued
> operation without that drive. After that I've just committed one patch
> to the HEAD and sent another one to freebsd-scsi@ for review. That, I
> hope, should significantly (down to 1-2 minutes) speedup that process.

> How long have you waited before and after making that screenshot?
  About one and half hour -- server stopped to respond on
 HTTP/SSH/SMTP/POP3 (but responded to pings and traceroute), I've
 requested access to remote console, tech support provide such access
 and all this process takes more than hour.

--=20
// Black Lion AKA Lev Serebryakov <lev@FreeBSD.org>