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Dive into the research topics where Masahisa Tamura is active.

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Featured researches published by Masahisa Tamura.


asia-pacific network operations and management symposium | 2014

Distributed object storage toward storage and usage of packet data in a high-speed network

Masahisa Tamura; Ken Iizawa; Munenori Maeda; Jun Kato; Tatsuo Kumano; Yuji Nomura; Toshihiro Ozawa

As the amount of data flowing in the network increases and as the number of applications having complex traffic patterns increases as well, packet data analysis is becoming all the more important for improving the quality of communications and facilitating troubleshooting. In particular, demand for the storage and analysis of individual items of packet data is increasing in addition to analysis based on statistical information to enable a detailed diagnosis of phenomena that have occurred on the network and at terminals. This paper proposes distributed object storage that can achieve both high-throughput storage of packet data and high-speed session searching. Specifically, we propose and evaluate a system for storing small-size data such as packet data with high throughput while deleting old data and conducting searches, and compare the storage performance of the proposed system with that of other distributed storage systems, and present the results of evaluating search performance for typical search patterns.


Archive | 2008

Storage medium for storing power consumption monitor program, power consumption monitor apparatus and power consumption monitor method

Kazuichi Oe; Tatsuo Kumano; Yasuo Noguchi; Yoshihiro Tsuchiya; Kazutaka Ogihara; Masahisa Tamura; Tetsutaro Maruyama; Takashi Watanabe; Minoru Kamoshida; Shigeyuki Miyamoto


Archive | 2008

STORAGE MANAGEMENT DEVICE, STORAGE SYSTEM CONTROL DEVICE, STORAGE MEDIUM STORING STORAGE MANAGEMENT PROGRAM, AND STORAGE SYSTEM

Yasuo Noguchi; Kazutaka Ogihara; Masahisa Tamura; Yoshihiro Tsuchiya; Tetsutaro Maruyama; Takashi Watanabe; Tatsuo Kumano; Riichiro Take


Archive | 2010

COMPUTER PROGRAM, APPARATUS, AND METHOD FOR MANAGING DATA

Masahisa Tamura; Yasuo Noguchi; Kazutaka Ogihara; Tetsutaro Maruyama; Yoshihiro Tsuchiya; Takashi Watanabe; Tatsuo Kumano; Kazuichi Oe


Archive | 2013

Processor, computer readable recording medium recording program therein, and processing system

Ken Iizawa; Toshihiro Ozawa; Yasuo Noguchi; Kazuichi Oe; Munenori Maeda; Kazutaka Ogihara; Masahisa Tamura; Tatsuo Kumano; Jun Kato


Archive | 2006

Virtual storage system control apparatus, virtual storage system control program and virtual storage system control method

Kazutaka Ogihara; Yasuo Noguchi; Masahisa Tamura; Yoshihiro Tsuchiya; Tetsutaro Maruyama; Riichiro Take; Minoru Kamoshida


Archive | 2007

Storage management process, storage management apparatus, and computer-readable medium storing storage management program

Kazutaka Ogihara; Masahisa Tamura


Archive | 2012

STORAGE SYSTEM AND STORAGE DEVICE

Toshihiro Ozawa; Kazutaka Ogihara; Yasuo Noguchi; Tatsuo Kumano; Masahisa Tamura; Jun Kato; Ken Iizawa; Kazuichi Oe; Munenori Maeda


Archive | 2009

Computer-readable medium storing data management program, computer-readable medium storing storage diagnosis program, and multinode storage system

Yasuo Noguchi; Kazutaka Ogihara; Masahisa Tamura; Yoshihiro Tsuchiya; Tetsutaro Maruyama; Takashi Watanabe; Tatsuo Kumano; Kazuichi Oe


Archive | 2005

Network system and supervisory server control method

Yasuo Noguchi; Riichiro Take; Masahisa Tamura; Yoshihiro Tsuchiya; Kazutaka Ogiwara; Arata Ejiri; Tetsutaro Maruyama; Minoru Kamoshida

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