Date: Wed, 2 Dec 2009 12:16:17 -0500 From: "Peter C. Lai" <peter@simons-rock.edu> To: Marin Atanasov <dnaeon@gmail.com> Cc: freebsd-stable@freebsd.org, freebsd-geom@freebsd.org Subject: Re: FreeBSD 8.0: RAID-1 using gpart, gvinum and gmirror Message-ID: <20091202171617.GT60409@cesium.hyperfine.info> In-Reply-To: <717f7a3e0912020235g7d8f4a1ey65831a2bba6c637a@mail.gmail.com> References: <717f7a3e0912020235g7d8f4a1ey65831a2bba6c637a@mail.gmail.com>
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Why are you using gvinum for RAID 1 instead of gmirror? The gmirror method for mirroring the boot partition is already well documented... On 2009-12-02 12:35:17PM +0200, Marin Atanasov wrote: > Hello, > > I'm going to make my partition mirrored using the geom utilities, but > however I've noticed that I cannot use the same way I used to do it under > 7.2 and 8.0-RC1. > > Here's the situation - I tried a lot of times to make my root partition > mirrored using gvinum, but each time when I boot in the new partition I'm > unable to boot from it.. So instead of using gvinum for the root partition > I've decided to use gmirror - and it works! > > I did it the following way - two NOT identical disks are added to the > system. > > - 1 slices on the first disk > - 2 slices on the second one (the 1st slice is the size of the root > partition which is on the 1st slice on the 1st disk) > > Right after a fresh minimal install, I go to single-user mode and create the > mirror: > > # gmirror label -vb round-robin gm0 /dev/ad0s1a > > Installing bootstap code on the second disk (in case I need to boot later > from it): > # fdisk -BI /dev/ad4s1 > # bsdlabel -wB /dev/ad4s1 > # newfs -O2 /dev/ad4s1 > # newfs -O2 -U /dev/ad4s2 > > And then inserting the second component of the mirror: > # gmirror insert gm0 /dev/ad4s1 > > And this is how I was doing a mirror for the root partition. For the other > partitions - /usr, /var, /tmp, swap I used gvinum following a different > articles, howtos and eventually it worked. The complete scenario of how I > did the mirror for the other partitions is here (sorry, it's too long to > just copy/paste it in the lists): > http://www.daemonforums.org/showpost.php?p=27010&postcount=3 > > If I can say it with little words - the way mirroring works for the other > partitions was to overlap all the other partitions with one big vinum > partition. > > My problem now is that I cannot do this anymore, because I need to use gpart > instead for creating the partitions, and using gpart I cannot create a vinum > partition that will overlap the other partitions, so I cannot make any > mirror for the other partitions. > > Is there any other way of doing this? > > I'm out of ideas now, perhaps you could help me out with this :) > > Thanks and regards, > Marin > > -- > Marin Atanasov Nikolov > dnaeon AT gmail DOT com > daemon AT unix-heaven DOT org > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" -- =========================================================== Peter C. Lai | Bard College at Simon's Rock Systems Administrator | 84 Alford Rd. Information Technology Svcs. | Gt. Barrington, MA 01230 USA peter AT simons-rock.edu | (413) 528-7428 ===========================================================
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