controllers; devices; electronic and electrical controllers; electronic and electrical devices; input/output (I/O) controllers; disk controllers; disk array controllers; storage controllers; data storage controllers; network controllers; network devices; network equipment; network storage devices; storage area network controllers; network-attached storage controllers; enterprise class storage controllers; storage area network devices; network-attached storage devices; enterprise class storage devices; redundant array of independent disks (RAID) controllers; fiber channel controllers; fibre channel controllers; memory controllers; cache controllers; computer storage and retrieval apparatus and software employed therewith; storage systems; intelligent storage systems; intelligent storage systems capable of network communication including processors, memory, operating software, data storage units for storing data and software for managing and controlling data; data storage subsystems; computer storage devices; network attached disk arrays; disk drives; disk drive arrays; disk arrays; computer hardware; circuits, namely electrical and electronic; wafers; integrated circuits; semiconductors; chips, namely silicon and computer; electrical devices; electronic devices; circuit boards; firmware; middleware; software; computer software; programs; storage software; software for use in storage and network management; data sheets supplied therewith as a unit; application notes supplied therewith as a unit; and users manuals supplied therewith as a unit