Beth Pariseau posted an interesting article on the SearchServerVirtualization.com website giving more information about the expected VMware Aware Storage APIs (VASA). The VASA will be provided by VMware with support from several storage partners, and will provide improved visibility into the physical storage infrastructure through vCenter and CapacityIQ.
VASA will be a standardized API that all storage vendors can write to that will actually push data into the vCenter database, so that analytics products can do additional analysis on the data.