Apparatus for recording, transmission or reproduction of sound or images; calculating machines and data processing equipment; computer hardware; computers; computer, Internet and network servers; computer storage hardware; computer storage servers; computer storage area network (SAN) servers; computer network-attached storage (NAS) hardware; computer and computer communications hardware for storage area networks; disk drive arrays and enclosures; data storage systems comprising computer hardware, computer peripherals and operating system software; integrated IT systems comprising converged computer, computer storage and computer networking hardware and software; modular IT systems comprising computer hardware and software for data processing, data storage, computer networking, supplying power and internal computer cooling; computer peripherals; computer hardware for virtualization