[ILUG] Virtualisation, what the point?

[Paul Kelly :: Blacknight]

On Wed, 2006-06-07 at 12:44 +0100, JMcCarthy at mortgagelink.ie wrote:
> Using one super server, doesnt that cause the problem of everything going
> down if the hardware fails?
> And how far would you take it?
> Would you have a mail/file/print/groupware/domain controller/dns/web
> proxy/firewall all on one hefty goliath of a machine?
> 

Take an organisation with 3 servers running 3 seperate services. 3
single points of failure and most probably a waste of hardware.

Now rejig that, deploy 2 sets of clustered Xen virtual machines to run
the services and you end up with a High availability solution with a hot
spare machine that can have all 6 Xen instances ready to be deployed at
a seconds notice.

Virtualisation is the extremely usefull in this regard.

Paul
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Paul Kelly
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