Autonomous Non-stop Microcode Updating Technology for High Available Storage Systems
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- Matsunami Naoto
- Hitachi Asia Ltd.
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- Nonaka Yusuke
- Hitachi Ltd., Yokohama Research Laboratory
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- Komikado Kosuke
- Hitachi Ltd., Information & Telecommunication Systems Company, IT Platform Division Group
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- Arai Toshiaki
- Hitachi Ltd., Defense Systems Company
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- Tsuji Hiroshi
- Osaka Prefecture University
Bibliographic Information
- Other Title
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- 自律型無停止マイクロコード交換技術によるストレージシステムの高可用化
- ジリツガタ ムテイシ マイクロコード コウカン ギジュツ ニ ヨル ストレージ システム ノ コウカヨウカ
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Abstract
We propose a technique called the Autonomous Non-stop Microcode Updating Technology to achieve high available dual controller storage systems. All commands which the microcode updating controller receives are transferred to other controller and executed by it, so that the microcode updating controller is released from any command operations, and storage administrators can execute microcode updating operation without any help of server administrators. The results of simulation with actual simulated load reveal that increase of average response time is 0.54ms and increase ratio is 19%. Performance of application is not affected by the results. In addition, we estimate the controller pause time during non-stop microcode updating process is 150ms at a maximum by this evaluation. Proposed technology achieves availability of 99.999%.
Journal
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- IEEJ Transactions on Electronics, Information and Systems
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IEEJ Transactions on Electronics, Information and Systems 136 (2), 199-209, 2016
The Institute of Electrical Engineers of Japan
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Details 詳細情報について
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- CRID
- 1390001204608263936
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- NII Article ID
- 130005122315
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- NII Book ID
- AN10065950
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- ISSN
- 13488155
- 03854221
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- NDL BIB ID
- 027104299
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed