Date: Mon, 21 May 2012 11:15:46 +0800 From: Marcelo Araujo <araujobsdport@gmail.com> To: Trent Nelson <trent@snakebite.org> Cc: "freebsd-fs@freebsd.org" <freebsd-fs@freebsd.org> Subject: Re: Mirror of Raidz for data reliability Message-ID: <CAOfEmZhZfTv6bqUa4z4TXOXKUATKb4TRq%2BHHP=CLWHJJBG8ptA@mail.gmail.com> In-Reply-To: <CBDBEF7C.2B265%trent@snakebite.org> References: <CAOfEmZj9mPnU%2BxgYP8qNWdPL_seqO7vxvwB-ZNOr3dGEUW5dbQ@mail.gmail.com> <CBDBEF7C.2B265%trent@snakebite.org>
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2012/5/19 Trent Nelson <trent@snakebite.org> > Hi Marcelo, > > > >2012/5/17 George Kontostanos <gkontos.mail@gmail.com> > > > > > >Not no.You can use Devd to start some scripts to mount the FS in another > >machine or something like that. > >But I can't be focused only in this scenario, I believe there are much > >more > >application for it. > > I'm in a similar situation with Snakebite. I have two boxes that can see > a common set of disks (via FC SAN). I'm interested in failover, but like > you, I don't want to use HAST -- why duplicate data when both machines can > access the disks? > > I came across these articles yesterday, which are pretty neat: > > CARP and devd on FreeBSD: > http://blather.michaelwlucas.com/archives/224 > Automated CARP/HAST > Failover: http://blather.michaelwlucas.com/archives/241 > > Yeap, you can use CARP + anything else to help you make it work. However in my case, if I have a JBOD fail, I want to be able to import the another JBOD with all data, so in my case I need raidz + vdev(mirror). Currently, I made a patch and now it works pretty well, but I'm doing some more tests to check if I'll face out any problem. Best Regards, -- Marcelo Araujo araujo@FreeBSD.org
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