Date: Thu, 19 Jan 2006 14:53:42 +0000 From: Thomas Hurst <tom.hurst@clara.net> To: freebsd-stable@freebsd.org Subject: Re: Gmirror'd SWAP: no dump? Message-ID: <20060119145342.GA86397@voi.aagh.net> In-Reply-To: <20060119123428.GD19305@voodoo.schug.net> References: <20060119121602.GC19305@voodoo.schug.net> <00c301c61cf2$8e9a7b70$68c8a8c0@lerctr.org> <20060119123428.GD19305@voodoo.schug.net>
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* Christoph Schug (chris+freebsd-stable@schug.net) wrote:
> IIRC I had the problem that 'gmirror insert' without '-h' not always
> inserted the slice specified by the entire block device (e.g.
> /dev/ad4s1 vs. /dev/ad4). Apparently there is some auto detection
> code and/or gmirror cannot differ correctly, but that's just a
> guess. Specifing '-h' fixed it in my case.
As I understand it, gmirror writes its metadata on the last sector of
the provider; when tasting devices it will look at the last sector of
ad4, find the metadata and use that as the provider for your mirror; you
can either hardcode the provider name there to override it, or make the
slice 1 sector smaller so gmirror tastes ad4, finds nothing, then goes
on to taste ad4s1 correctly.
--
Thomas 'Freaky' Hurst
http://hur.st/
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