Herein disclosed is a disk controller having a cache. This cache is so managed that a predetermined part composed of at least one of a plurality parts divided therefrom is initialized. In response to a request for cache activation from a host computer, the initializations of the cache are partly executed...http://www.google.de/patents/US5375227?utm_source=gb-gplus-sharePatent US5375227 - Method of and apparatus for automatic recovery of a cache in a storage system
