That will be expensive.  Keep in mind there are plenty of things that
can bring down your system besides a bad hard drive -- e.g., human
error, failing CPU fan, memory problem, etc.  For sure, high
availability is a very complex issue and there are no pat answers.

If you want to hash it over off-list, shoot me a message.

-- Rod
   http://www.sunsetsystems.com/

James Shaker wrote:
> 
> Hello,
> 
> I need to procure 3 rack mount servers.  In sorting through what is
> available out there I have found that
> most are RedHat based.  Whatever I buy, I will change to Debian.  The first
> server I want to have a hot
> swap raid array and dual hot swap power supplies.  The other 2 servers will
> not be connected to the web,
> but communicate data to the web server and do not need the raid
> array.  Does anyone on this list have
> any suggestions or caveats?
> 
> James Shaker
> james@vartek-corp.com