Virtual storage systems, virtual storage methods and methods of over committing a virtual raid storage system

摘要

Virtual storage systems, virtual storage methods and methods of over committing a virtual RAID storage system are described. According to one aspect, a virtual storage system includes a virtual storage space, a physical storage space, a mapping system configured to associate a plurality of addresses of the virtual storage space with respective addresses of the physical storage space and a controller configured to automatically remove a portion of the mapping system according to a prioritization protocol which specifies removal of portions of the mapping system according to an order.