Date: Fri, 20 Mar 2009 18:57:02 +0200 From: Stefan Lambrev <stefan.lambrev@moneybookers.com> To: freebsd-stable@freebsd.org Subject: gemor mirror and priority Message-ID: <0E486099-ED60-43E6-A86E-75B2CBC1DC00@moneybookers.com>
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Greetings, Is this still correct: Note that you want to insert the remote disk into the mirror first. The disk in the mirror with the highest priority gets used first if you set the balance algorithm to 'prefer'--it seems like a good idea to make sure that's the local disk... The first item inserted in the mirror automatically gets a priority of 0. There is a documented limitation of gmirror--you can't change the priority of a component after it's added. If you add the local disk first and the filesystem is live (being changed), you'll need to do a full sync, then remove the local disk, and then add the local disk back with a higher priority and complete another full sync--which can take some time over the network. Or in other words - priority=0 means lowest or highest priority for reading from geom mirror? -- Best Wishes, Stefan Lambrev ICQ# 24134177
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