[ Cloud Computing ] Re: Role of Windows Appliances and Cloud

Mark,

As you said the difference between OSs and hypervisors are obfuscated.
Maybe we could use neutral names:
1st layer: provide fundmental system services, running directly on
physical machines
2nd layer: provide virtualized tasks, running on the 1st layer

If I understand correctly, you think the 1st layer should be thicker
than current hypervisors, but thinner than current full service OSs;
the 2nd layer should be thicker than current runtimes:JVM, .NET, etc.,
but thinner than current full service guest OSs.

I don't know if technologies would affect how to divide the
functionalities between the 1st layer and 2nd layer. Say, multi-core,
blades, commodity hardwares, etc. The decision to scale out or up ?
Virtualization, cluster, or GRID.

Does these factors affect each others ?

Scott

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