Re: [PLUG] 3-way data mirror?

[Doug Stewart <zamoose@gmail.com>]

On Sun, Dec 12, 2010 at 12:52 AM, JP Vossen <jp@jpsdomain.org> wrote:
> I have a situation where I have 2 labs that need to keep ~150G of data in
> sync, but they can't talk to each other.  They can talk to a 3rd machine,
> which is also backed up, so...
>
> What I think I'd like to do is have:
>
>        Lab1 <--> COLO <--> Lab2
>
> The problem is that lab1 and lab2 are both read-write, so there is a real
> possibility of stepping on changes.  COLO is read-only.
>
> I'd try to just relay through the COLO, but that's also where the backup
> will happen.  And I can't get the FW rules changed.
>
> Any better ideas?
>
> Any suggestions on tools?  I'd strongly prefer something already in the
> CentOS-5 or EPEL repos.


Have you looked into Unison?

http://www.cis.upenn.edu/~bcpierce/unison/

-- 
-Doug
@zamoose
http://literalbarrage.org/blog/
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