ALEXANDRIA, Va., June 19 -- United States Patent no. 12,332,780, issued on June 17, was assigned to HITACHI VANTARA LTD. (Kanagawa-Ken, Japan).
"Storage system" was invented by Yusuke Yamaga (Tokyo), Takaki Matsushita (Tokyo) and Akira Deguchi (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A processor inputs/outputs data related to data input/output with respect to the volume to/from a page of the logical storage area; maps the volume to data of the logical storage area; is able to release the storage area in units of the pages; includes a plurality of the volumes that can share data of the logical storage area; performs garbage collection of deleting data which is not referred to from any of the plur...