Hirofumi Sahara

Title: Hirofumi Sahara: Innovator in Computer Systems

Introduction

Hirofumi Sahara is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of computer systems, particularly in load balancing and path management. With a total of 3 patents to his name, Sahara's work has had a considerable impact on improving system performance.

Latest Patents

Sahara's latest patents include a "Computer system for load balance, and method and program for setting path." This invention provides a computer system that includes computers and a storage system coupled to the computers. The storage system features a first load measuring module that measures a first access load for each channel adaptor. One of the computers includes a path management module that manages paths for accessing logical units. This module incorporates a second load measuring module that measures the access load imposed by the computer to the logical unit. An active path setting module selects one of the channel adaptors based on the measured access loads, thereby balancing the load on the entire system and improving performance while maintaining a high cache hit rate.

Another of his patents, "Computer system for load balance, program and method for setting paths," describes a high-performance storage system that effectively utilizes cache memory and balances access loads. In this system, the storage system includes one or more channel adapters that communicate with the computer and a plurality of logical units that store data. The computer features one or more host bus adapters and a path management module that manages the access path to the logical unit. This module includes a load measurement module that measures the access load on each logical unit and an active path setting module that establishes active paths based on the measured access load.

Career Highlights

Hirofumi Sahara has worked with prominent companies such as Hitachi, Ltd. and Hitachi Software Engineering Company, Ltd. His experience in these organizations has allowed him to develop innovative solutions that enhance computer system performance.

Collaborations

Sahara has collaborated with notable coworkers, including Satoshi Kadoiri and Hiroshi Morishima. Their combined expertise has contributed to the advancement of technology in their respective fields.

Conclusion

Hirofumi Sahara is a distinguished inventor whose work in computer systems has led to significant advancements in load balancing and path management. His contributions continue to influence the industry and improve system performance.