live mirroring

[Gerard Meijer]

Peter,

I don't really understand this approach. Where can I read more about nfs?

Thanks
----- Original Message ----- 
From: "Peter Risdon" <peter at circlesquared.com>
To: "Gerard Meijer" <gmeijer at palmweb.nl>
Cc: <freebsd-questions at freebsd.org>
Sent: Monday, February 14, 2005 10:49 AM
Subject: Re: live mirroring


> On Mon, 2005-02-14 at 10:22 +0100, Gerard Meijer wrote:
>> Hi all,
>>
>> I have a question. I want to set-up a site on 3 identical FreeBSD 
>> servers, using Round Robin to distribute the load.
>>
>> The site will be running some .cgi and .php scripts and when those 
>> scripts make changes to the configuration files of the sites, they need 
>> to be spread automatically to the other two servers. Also when files are 
>> uploaded to one server, I need them to automatically upload to the other 
>> servers to.
>>
>> What is the best program to do this? Or am I looking at it the wrong way 
>> and should I do it different?
>
> Mirroring is one approach, but here's another:
>
> One of the servers holds the data and nfs exports it to the other two.
> The webroot is on the mounted nfs filesystem. This also eliminates
> potential data synchronisation problems if you have different
> filesystems having overlapping/incompatible changes made to them. It
> lets you invest in one really resilient storage system instead of three
> possibly inferior ones.
>
> Peter.
>
>