Tadashi Numanoi

Title: The Innovations of Tadashi Numanoi

Introduction

Tadashi Numanoi is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of computer systems and storage management. With a total of 6 patents to his name, Numanoi's work focuses on enhancing the performance and efficiency of storage networks.

Latest Patents

One of Numanoi's latest patents is a method, computer system, and management computer for managing the performance of a storage network. This invention provides a method of controlling a computer system that includes a host computer and one or more storage systems connected via a network. The first processor executes an application job that performs data I/O in a logical storage area, while the second processor executes a management job that also performs data I/O in the same area. The method involves assessing whether resources used for the application job's data I/O are also utilized for the management job's data I/O when the performance of the application job falls below a predetermined threshold. It displays information regarding the management job when such resource overlap is detected.

Another notable patent involves a computer system designed to determine and display performance problems from primary storage devices. Based on identified issues, the system selects a migration destination to secondary storage devices that operate independently. This invention includes a host computer, a storage system, and a management computer. The storage system receives data I/O requests to virtual logical volumes and real logical volumes. When a performance problem occurs in a virtual logical volume, the management computer selects it and identifies a different pool for migration, thereby preventing performance issues caused by interference among virtual logical volumes sharing the same pool.

Career Highlights

Tadashi Numanoi is currently employed at Hitachi, Ltd., where he continues to innovate in the field of storage management. His work has been instrumental in developing solutions that enhance the efficiency of data handling and storage systems.

Collaborations

Numanoi has collaborated with notable colleagues, including Naoki Shimada and Kei Takeda. Their combined expertise has contributed to the advancement of technology in their respective fields.

Conclusion

Tadashi Numanoi's contributions to the field of computer systems and storage management are noteworthy. His innovative patents reflect a commitment to improving performance and efficiency in storage networks. His work continues to influence the industry and pave the way for future advancements.