Date: Wed, 14 Feb 2007 15:22:12 -0500 From: John Nielsen <lists@jnielsen.net> To: freebsd-questions@freebsd.org Cc: Ville Lundberg <freebsd@juiceless.net>, "Brian A. Seklecki" <lavalamp@spiritual-machines.org> Subject: Re: gmirror: degraded, Component ad4 (device gm0) broken, skipping. Message-ID: <200702141522.13283.lists@jnielsen.net> In-Reply-To: <20070214151204.Q59589@arbitor.digitalfreaks.org> References: <43E076CC.2090107@juiceless.net> <20070214151204.Q59589@arbitor.digitalfreaks.org>
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On Wednesday 14 February 2007 15:13, Brian A. Seklecki wrote: > > gmirror insert gm0 ad4 > > The big question is: > > In your example, ad4 has already been "prepped" for use in as a component > in the gmirror by ....? > > Or will it just overwrite anything on ad4 regardless? No prep is necessary when using raw devices such as ad4. The insert operation will overwrite everything (or the first $VOLUME_SIZE blocks) on ad4 with the contents of the mirror. Obviously if you want to use only a portion of a drive as a gmirror consumer then the drive should be fdisk'ed and/or bsdlabel'ed and the device name of the slice or partition (e.g. ad4a, ad4s1, or ad4s1a depending) should be used instead of ad4 as the gmirror consumer. JN
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