Date: Thu, 30 Jun 2005 13:16:38 -0700 From: Danny Howard <dannyman@toldme.com> To: "P.U.Kruppa" <root@pukruppa.de> Cc: rse@FreeBSD.org, freebsd-questions@freebsd.org Subject: Re: raid1 with gmirror (some questions left) Message-ID: <42C45326.3060805@toldme.com> In-Reply-To: <20050630185836.L46920@www.pukruppa.net> References: <20050630185836.L46920@www.pukruppa.net>
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P.U.Kruppa wrote: > > As far as I can see, booting from gm0 works fine. There are only two > questions left: > 1) I installed FreeBSD 5.4 -RELEASE and thus I put - as > recommended (or was that only for 5.3 ???) - swapoff="YES into > my /etc/rc.conf . > Now my raid1 device doesn't show any swap partition. Is this > o.k., or should it be reactivated somehow? Uhmmm, can you elaborate on that? Here's what my system looks like: 0-13:14 djh@castor ~> gmirror list Geom name: gm0 State: COMPLETE Components: 2 Balance: round-robin Slice: 4096 Flags: NONE SyncID: 2 ID: 2016858745 Providers: 1. Name: mirror/gm0 Mediasize: 250059349504 (233G) Sectorsize: 512 Mode: r6w6e2 Consumers: 1. Name: ad4 Mediasize: 250059350016 (233G) Sectorsize: 512 Mode: r6w6e3 State: ACTIVE Priority: 0 Flags: DIRTY SyncID: 2 ID: 2809681815 2. Name: ad6 Mediasize: 250059350016 (233G) Sectorsize: 512 Mode: r6w6e3 State: ACTIVE Priority: 0 Flags: DIRTY SyncID: 2 ID: 2997441133 Geom name: gm0.sync 0-13:14 djh@castor ~> mount /dev/mirror/gm0s1a on / (ufs, local) devfs on /dev (devfs, local) /dev/mirror/gm0s1g on /local0 (ufs, local, soft-updates) /dev/mirror/gm0s1e on /tmp (ufs, local, soft-updates) /dev/mirror/gm0s1f on /usr (ufs, local, soft-updates) /dev/mirror/gm0s1d on /var (ufs, local, soft-updates) 0-13:14 djh@castor ~> swapinfo Device 1K-blocks Used Avail Capacity /dev/mirror/gm0s1b 4167488 0 4167488 0% > 2) In case one of my disks fails (let's say ad2), what is the > correct procedure to exchange it? My guess: > - power down my machine If you have hot-swap drive bays, you can skip this step. > - insert new disk > - # gmirror configure -a gm0 > - # gmirror insert gm0 /dev/ad2 > - wait until > # gmirror list > shows both disks active again You should only need the insert command, and you can certainly use the system while the disks are syncing, you'll just have impaired performance. Cheers, -danny -- http://dannyman.toldme.com/
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