Gluster is an open storage software platform that delivers scale-out storage for public, private, and hybrid clouds. Our open-source software platform runs on commodity computing and storage resources (either on-premise or in the public cloud), enabling customers to scale performance, capacity, and availability on demand. Customers have scaled Gluster in building block fashion from a few terabytes to multiple petabytes to meet the most demanding capacity and performance needs at a fraction of the cost of traditional proprietary and monolithic systems. Gluster uses a unified global namespace to virtualize disk and memory resources into a single shared pool that is centrally managed. Our scalable virtual NAS appliances address the needs of traditional data centers, shared storage for virtual server environments, and both public and private storage clouds. Gluster is used by enterprises in a wide range of industries, including digital media delivery, healthcare, internet, energy, and biotech.