Date: Thu, 26 Jan 2006 09:37:53 -0800 From: Steven Schoch <schoch-freebsd.org@starnet.com> To: freebsd-geom@freebsd.org Subject: Re: gmirror on disks of different size Message-ID: <6650332b0601260937m2571371fld70df3dcdd941821@mail.gmail.com>
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Pawel Jakub Dawidek wrote: > AFAIK gvinum is supported. In a previous message, Fred R. said that with 6.0, after running gvinum start, the entries /dev/gvinum/* were not there. Lukas Ertl replied that gvinum was last supported in the latest -STABLE release, which was not 6.0. I also found that I couldn't use gvinum after upgrading to 6.0, so I figured gvinum was not supported, or at least on the back burner. > With gmirror you can mirror any GEOM providers (disks, slices, > partitions, stripes, encrypted providers - anything). Thanks! Alec Berryman also pointed me to http://people.freebsd.org/~rse/mirror/ , which suggests using gmirror on a slice, and then partitioning the gmirrored slice. In order to avoid mirroring the swap partition, which seems unwise to me, I'm planning on dividing each disk into two slices, with slice 2 taking up the last part of the disk. Then I can gmirror as follows: =09# gmirror label root da0s1a da1s1a =09# gmirror label gm0 da0s2 da1s2 Then I'll use disklabel on gm0 to set up two partitions, /dev/gmirror/gm0d for /usr and /dev/gmirror/gm0e for /var. Then, I'll have two swap partitions, da0s1b and da1s1b, and scratch partitions on da1s1{d,e} (the larger disk). Is there something wrong with doing it this way? Is there a better way?
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