Date: Fri, 5 Feb 2010 21:34:15 +0000 From: Mike Clarke <jmc-freebsd2@milibyte.co.uk> To: freebsd-questions@freebsd.org Subject: Re: Newbie gmirror questions Message-ID: <201002052134.15945.jmc-freebsd2@milibyte.co.uk> In-Reply-To: <4B538459.7090601@infracaninophile.co.uk> References: <201001152334.52978.jmc-freebsd2@milibyte.co.uk> <201001172122.15128.jmc-freebsd2@milibyte.co.uk> <4B538459.7090601@infracaninophile.co.uk>
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On Sunday 17 January 2010, Matthew Seaman wrote: > However, one of the really amazingly brilliant things about geom is > that just about any disk / storage related thing can be a geom > provider, and geom constructs will nest very happily. =A0Here's a howto > for setting up gmirror across a pair of slices: > > http://people.freebsd.org/~rse/mirror/ Thanks for all the advice, my mirrors are now up and running on 2 of the=20 4 slices without any problems. But just one last dumb question. Does gmirror consider one of the=20 consumers to act as a "master" for the pair? The reason I ask is that=20 earlier today I needed to disconnect a few cables inside the PC to get=20 better access to a bit of internal hardware and then realised that=20 although I knew which two SATA connectors to use for the mirror drives=20 I'd failed to make a note of which order the drives were connected. I=20 felt about 75% sure I'd paired them up the same way as before so went=20 ahead, everything started up OK and "gmirror status" shows the status=20 for both mirrors as "COMPLETE". Now I'm wondering if I was just lucky=20 or if it just doesn't matter if the order of mirror consumers is=20 interchanged after creation. =2D-=20 Mike Clarke
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