Fujitsu Assigned Patent

Fujitsu Limited, Kawasaki, Japan, has been assigned a patent (8,918,620) developed by Matsumura Tadashi, Yoshida Masahiro, and Uchiyama Kenji, Kawasaki, Japan, for a “storage control apparatus, storage system and method.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A storage control apparatus includes a controller configured to control to convert an access to logical volume into an access to associated RAID group in response to an access to the corresponding virtual volume on the basis of access conversion information, monitor frequency of access to each of logical volumes, select a logical volume on the basis of the monitored frequency of access, move data stored in a RAID group corresponding to the selected logical volume to a different RAID group corresponding to a logical volume to be a data shift destination, and update the access conversion information to convert access to the RAID group corresponding to the selected logical volume into access to the different RAID group.“

The patent application was filed on June 14, 2011 (13/159,853)