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Date: Fri, 10 Feb 2006 15:15:10 +0100
From: Ivan Voras <ivoras@fer.hr>
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To: Alexander Botero-Lowry <alex@foxybanana.com>
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Cc: freebsd-geom@freebsd.org
Subject: Re: gmirror + ggate
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Alexander Botero-Lowry wrote:
> I'm interested in setting up a fail over server with one drive that uses ggate to mount the drive from the main server and mirror it to its local drive. Something like:
> 
> server a: ad0 ad1 (mirrored)
> server b: ad0 ggate0 (a ggate of the drives from server a)
> 
> ad0 and ggate0 would have a "uni-directional" mirror. So that changes on the ggate would be written to ad0 but changes to ad0 either wouldn't happen (monut ro) or would be ignored.
> 
> Is this possible?

It depends on do you want to mount the copy/mirror or not, and of 
reliability of your network. Read this entire thread: 
http://docs.freebsd.org/cgi/mid.cgi?43D97268.2030700