VMWorld VMware is introducing a new vSphere architecture and management product to manage a data centre as an internal or external cloud of services.
The idea, introduced by VMware CEO Paul Maritz at VMworld in Cannes, is to have a set of interfaces looking downwards at the IT plumbing and another set looking at the applications.There is a vCompute interface to look at the compute resources and see what is available and provision them. A vStorage layer gets told by storage resources - the arrays for example - what they can do, such as block copy or deduplication. Then vSphere admin staff, and ultimately users themselves, can provision storage resources.
Ref: http://www.theregister.co.uk/2009/02/24/vmware-vsphere/