A plurality of independent cache units and nonvolatile memory units are provided in a disk controller located between a host (central processing unit) and a magnetic disk drive. A plurality of channel units for controlling the data transfer to and from the central processing unit and a plurality...http://www.google.es/patents/US5689729?utm_source=gb-gplus-sharePatente US5689729 - Storage subsystem having plurality of access paths permitting independent access to cache memory from host and independent access to the cache from rotating storage device
Storage subsystem having plurality of access paths permitting independent ...
