The present invention uses a normal form to represent a storage virtualization scheme, and applies a set of rules to transform between other representations, using the normal form as an intermediate. The logic can be implemented in hardware or software in the host, network, or physical storage subsystems,...http://www.google.com.au/patents/US20070283087?utm_source=gb-gplus-sharePatent US20070283087 - Method and structure for adapting a storage virtualization scheme using transformations
