[Xen-users] Re: XEN and Windows Guests in critical environment(hospital)

[Ligesh <myself@xxxxxxxxxx>]

On Sat, Jun 23, 2007 at 10:15:25PM +1000, James Harper wrote:
> problems when virtualisation isn't involved, and the last thing you want
> is one of the vendors throwing their hands in the air and saying
> 'Xen/VMWare'??? We don't support that!!!
> 

 Why would you want to tell the application software folks that you are running 
it inside Xen? How can they even find out? Just let them login to the windows 
machine like they normally do, and even if they are experts on virtualization, 
I don't think there is an easy way to determine that. Even the windows os 
itself has no idea it is running in a virtualized environment. In fact, that's 
the entire point of virtualization--virtualize nothing or at the most, the 
kernel, and the apps all work transparently, since otherwise the entire thing 
becomes pointless.

 As for virtualization itself, you need to check the stability of Xen itself, 
which has only been tagged stable recently. Virtualization makes it easier to 
manage, and overall I would say increases the reliability, simply on account of 
being easier to keep track of, and also take backups, migrate in case of 
hardware failure etc.

 

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