Storage Area Network (SAN) Virtualization

The Storage Network Industry Association (SNIA), defined virtualization as:

  1. The act of abstracting, hiding, or isolating the internal function of a storage (sub) system or service from applications, compute servers or general network resources for the purpose of enabling application and network independent management of storage or data.
  2. The application of virtualization to storage services or devices for the purpose of aggregating, hiding complexity or adding new capabilities to lower level storage resources.
    Storage can be virtualized simultaneously in multiple layers of a system, for instance to create HSM like systems.

Hu Yoshida, the VP and CTO of Hitachi Data Systems, explained clearly about this definition here..

See also Storage virtualization Wikipedia page here..

Continue reading