From owner-freebsd-fs@FreeBSD.ORG  Sat Jan 27 23:48:19 2007
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Message-ID: <eb8efda50701271520x4dd32780r8f99b4d05716a891@mail.gmail.com>
Date: Sun, 28 Jan 2007 00:20:56 +0100
From: "Juraj Lutter" <wilbury@gmail.com>
To: "Josef Karthauser" <joe@freebsd.org>, "Joe Koberg" <joe@osoft.us>, 
	stable@freebsd.org, fs@freebsd.org
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References: <20070115112106.GA2304@genius.tao.org.uk>
	<20070115115650.GB2304@genius.tao.org.uk> <45AB9BE4.1030606@osoft.us>
	<20070127224749.GA8203@genius.tao.org.uk>
Cc: 
Subject: Re: mpt problems. (Re: Dell hardware raid 0 (sas5ir) or gmirror?)
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On 1/27/07, Josef Karthauser <joe@freebsd.org> wrote:
> The problem is that the synchronisation appears to progress ok, but
> when I add some additional load, like cvsuping the ports collection
> at the same time, after a short period I get loads of errors from
> the mpt controller and then geom disconnects the drive (da0s1).
> Wierdly when I reboot the machine the mpt controller refuses to
> probe da0, and I have to physically power cycle the machine before
> it sees the drive again.


I've been observing very similar behavriour with recent 6.2-STABLE on
i386 with either Silicon Image 3114 or Promise FastTrak TX4. gmirror
synchronisation worked OK until I've added some additional load on the
synchronised volume. Unfortunately I haven't been able to take any
reasonable DDB output :-(

-- 
Sincerely yours,
Juraj Lutter