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On Fri, Apr 19, 2013 at 05:10:37PM +0100, Tim Cutts wrote:
> Anyone running a research computing setup has encountered both of these 
> issues.  Virtualisation mitigates the damage that can be done, without the 
> expense of an separate toy cluster, but it doesn't address these support and 
> transition to production issues.

Yeah, these are the problems you're going to hit with either toy
clusters or VMs. The main reason I like VMs for this is that it
eliminates a whole class of "futzing around with hardware" problems:
I might have to help dig people out of their holes occasionally, but
at least I don't need to go down to their labs and untangle a rats'
nest of cables.

I'm lucky enough to have a smallish and relatively good-humored use
community, so when someone really craters their test system, they
usually have a six-pack of my favorite beer on hand when they ask for
help. ;-) But that doesn't really scale...

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