Date: Thu, 6 Nov 2008 08:24:21 -0500 From: "Gabriel Lavoie" <glavoie@gmail.com> To: "Volodymyr Kostyrko" <c.kworr@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: gmirror + gjournal setup question Message-ID: <d05df8620811060524x6c8d3883j1a8efc42aaabf2cd@mail.gmail.com> In-Reply-To: <geug4k$dnt$1@ger.gmane.org> References: <d05df8620810291007y3d18e5b8g8674477f1f00d810@mail.gmail.com> <geug4k$dnt$1@ger.gmane.org>
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Thanks for your reply. I finally understood that with the "power failure" tests I made. Gabriel 2008/11/6 Volodymyr Kostyrko <c.kworr@gmail.com> > Gabriel Lavoie wrote: > >> Hello, >> I would like to know what is the best way to setup gmirror + gjournal, >> on a slice level on two hard drives. Do I set up a mirrored journal >> partition + mirrored journalized slice (gmirror on top of gjournal) on >> which >> I create my labels with bsdlabels (will create /dev/mirror/name.journal, >> /dev/mirror/name.journala, /dev/mirror/name.journalb). Or I setup a >> journalized slice on both hard drive and then I mirror /dev/ad0s1.journal >> and /dev/ad1s1.journal (gjournal on top of gmirror)? I have hard time to >> figure out what would be the best, if I want to avoid mirror rebuild on >> power failure and I want fast fsck. I'd also like to make this setup on my >> 1st slice (which contains the root filesystem). >> > > man gjournal: > ... > When gjournal is configured on top of gmirror(8) or graid3(8) > providers, > it also keeps them in a consistent state, thus automatic > synchronization > on power failure or system crash may be disabled on those providers. > ... > > I think journaling a mirrored partition can be much better. > > -- > Sphinx of black quartz judge my vow. > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscribe@freebsd.org" > -- Gabriel Lavoie glavoie@gmail.com
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