Date: Wed, 09 Apr 2008 12:41:21 +0200 From: Miroslav Lachman <000.fbsd@quip.cz> To: hv <hv@tuebingen.mpg.de> Cc: freebsd-geom@freebsd.org Subject: Re: disklabel and gm0 (gmirror) Message-ID: <47FC9D51.5080107@quip.cz> In-Reply-To: <76AE05BD-B56F-4811-8F6B-64A20F02CBF7@tuebingen.mpg.de> References: <47FBE9CC.6050903@diff.org> <47FBF2C1.4040806@quip.cz> <76AE05BD-B56F-4811-8F6B-64A20F02CBF7@tuebingen.mpg.de>
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hv wrote: [...] > why not just using gmirror to break and recreate the mirror, something > like this: > > 1) remove one disk (it's a mirror!) > 2) recreate the label on this disk, newfs it and copy everything over > from the remaining mirror disk. > 3) if you booted off the mirror, you need to adjust fstab to boot from > the disk 1) and reboot, then destroy the mirror. > 4 recreate the mirror on the disk from 1), if you want to boot from > the mirror, re-adjust the fstab and reboot > 5) insert the second disk into the recreated mirror in 4) > > see gmirror(8), hope this helps. Yes, it is one of the possible ways of "backup all your data"... :) And another way could be - remove one drive (provider) from gmirror, data remains on it. Recreate the label on gmirror gm0 + newfs Copy data from previously removed provider Reinsert provider in to new gmirror [and do some steps with fstab + reboot if needed] I feel myself safer if data is backuped off the machine where I play with disks / newfs / gmirror etc. Miroslav Lachman
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