Extended cache memory system

摘要

The present invention includes a cache system and method for an extent-based cache memory design. A method of the present invention for caching data in a memory includes the steps of: providing a storage device and a host device, where each device is in communication with the memory; creating an extent record associated with the memory; receiving. a storage device access request from the host device; and changing at least one state field value in the extent record in response to the access request from the host device.