ALEXANDRIA, Va., June 12 -- United States Patent no. 12,298,998, issued on May 13, was assigned to HITACHI VANTARA LTD. (Yokohama, Japan).
"Storage system and data replication method in storage system" was invented by Takaki Matsushita (Tokyo), Yusuke Yamaga (Tokyo) and Akira Deguchi (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "The operational performance and the I/O performance of Snapshots in a storage system are balanced. In a storage system, meta information of data appended to a log structured area is composed of meta information of a first tier and meta information of a second tier which correlate location information of data in a logical volume and location information of data in the log stru...