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Date:      Tue, 17 Jan 2006 23:11:55 +0200
From:      Aragon Gouveia <aragon@phat.za.net>
To:        freebsd-geom@freebsd.org
Subject:   Re: gmirror using disk image files
Message-ID:  <20060117211155.GA12650@phat.za.net>
In-Reply-To: <43CD5505.2040705@fer.hr>
References:  <20060117103633.GA89290@phat.za.net> <43CD5505.2040705@fer.hr>

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| By Ivan Voras <ivoras@fer.hr>
|                                          [ 2006-01-17 22:35 +0200 ]
> You can do use mdconfig(8) to do anything geom-related with files, 
> including mirroring them over the network. BUT, you can't mount the 
> mirrored file system at the same time on both machines except if both 
> mounts are read-only.
> 
> Combinations such as:
> 
> - mirrored devices/file systems mounted read-write on both machines
> - mounted read-write on one machine and read-only on the other(s)

Cool!  I was planning on implementing the second one.


> are all invalid and will sooner or later certainly result in system 
> panic (not because of GEOM but because of the UFS). I'd tell you to try 
> this: http://tdfs.sourceforge.net/ but it's really not production ready.

Darn, that does certainly blow it out of the water then, atleast for my use. 
I'll keep an eye on both options' progress.

Thanks!


Aragon



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