Fwd: [ILUG] Virtualisation, what the point?

[Damien Gill]

We build them generally with two or more "super servers" attached to a
san , virtualise an entire corporate environment into one rack, very
cheap when in a data centre , virtual os's can be moved from one server
to another without even shutting them down in a matter of seconds
allowing for maintenance of the hardware when needed.

Damien.
-----Original Message-----
From: ilug-bounces at linux.ie [mailto:ilug-bounces at linux.ie] On Behalf Of
Justin Mason
Sent: 07 June 2006 13:00
To: Thomas Bridge
Cc: Irish Linux Users Group
Subject: Re: Fwd: [ILUG] Virtualisation, what the point? 


Thomas Bridge writes:
> On 6/7/06, JMcCarthy at mortgagelink.ie <JMcCarthy at mortgagelink.ie>
wrote:
> > Where is the advantage of having 2 or 3 OSes running on the same
machine,
> >  at the same time with virtualisation(i.e. XEN)?
> >
> > Why not just have the same services running on one OS, it seems a
bit of a
> > waste of resources to me.
> 
> I'm currently in the process of trying to create a number of routing
> instances to inject routes into a lab network.    Virtualisation is
> useful as I can create three or four linux "servers" which each have
> their own instance of quagga to push the routes into the lab network
> and on one piece of hardware.

on that -- here's Brad again, this time on distributed filesystem
testing
using Xen: http://brad.livejournal.com/2228303.html

--j.
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