Enterprise Storage is computer storage that has a number of characteristics desirable by large Enterprise organizations.  These characteristics typically include high reliability, fault-tolerant, expandable, and perhaps most important supported by a fast and response on-site repair organization.  Companies such as EMC, NetApp, Hewlett-Packard and IBM are significant provider of such storage.  Cloud storage is seen by many as disruptive to the Enterprise Storage market -- however, large Enterprises continue to be reticent storing their corporate files with other vendors and outside of their direct control.