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Date:      Tue, 20 Dec 2005 00:31:33 +0100
From:      Pawel Jakub Dawidek <pjd@FreeBSD.org>
To:        Walter Hop <freebsd@walter.transip.nl>
Cc:        freebsd-geom@freebsd.org
Subject:   Re: dumpon on a gmirror system
Message-ID:  <20051219233133.GG91822@garage.freebsd.pl>
In-Reply-To: <11510009518.20051220001944@lifeforms.nl>
References:  <1926276358.20051219235324@lifeforms.nl> <20051219230506.GF91822@garage.freebsd.pl> <11510009518.20051220001944@lifeforms.nl>

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On Tue, Dec 20, 2005 at 12:19:44AM +0100, Walter Hop wrote:
+> [in reply to pjd@FreeBSD.org, 20-12-2005]
+>=20
+> Hi Pawel,
+>=20
+> thanks for the reply!
+>=20
+> > Are you sure you mirror partitions and not slices nor whole disks?
+> > Output of 'gmirror list' will be helpful.
+>=20
+> I am mirroring the whole drive.

Ok, so I'm afraid you cannot disconnect single partition from it.
This is one of the reasons I prefer mirroring every partition separetly.

Actually changing configuration from whole-disk-mirror to
per-partition-mirrors is possible even remotly, but it's quite risky, so
I won't recommend it...
Not sure what else can I suggest.

If those panics are reproducable, you can risk removing one disk from
the mirror and setting dump partition on its 'b' partition, but I'm
guessing it is not the answer you were looking for.

--=20
Pawel Jakub Dawidek                       http://www.wheel.pl
pjd@FreeBSD.org                           http://www.FreeBSD.org
FreeBSD committer                         Am I Evil? Yes, I Am!

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