| Presentation | 2019-06-11 Proposal and Development of Copy Speed Control Method for Non-disruptive Migration between Storage Systems Akihiro Hara, Hiroaki Akutsu, Tomohiro Kawaguchi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Applications are not allowed to stop at enterprise system when exchanging IT equipment for maintaining business continuity. In such situation, the host I/O non-disruptive migration technique is used that takeover volume ID from the migration source to the migration target and switch I/O target from the migration source to the migration target and copy data from the migration source to the migration target. In this technique, performance of host I/O response and copy speed are in a trade-off relationship because both host I/O and copy are processed in storage at the same time. Objectives of this research are both suppressing amount of increase of host I/O response and realizing faster copy speed when non-disruptive migration. We propose and develop changing copy throughput method with model by queuing theory. We evaluated proposed method with storage system which simulated migration from HDD storage to SSD storage and found that we can change copy throughput to suppress increasing of I/O response time within 20% and realize 80% of ideal copy speed. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Storage System / Copy Speed Control / Experiment |
| Paper # | CPSY2019-3,DC2019-3 |
| Date of Issue | 2019-06-04 (CPSY, DC) |
| Conference Information | |
| Committee | DC / CPSY / IPSJ-ARC |
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| Conference Date | 2019/6/11(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | National Park Resort Ibusuki |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Architecture, Computer Systems, Dependable Computing, etc. (HotSPA2019) |
| Chair | Satoshi Fukumoto(Tokyo Metropolitan Univ.) / Hidetsugu Irie(Univ. of Tokyo) / Hiroshi Inoue(Kyushu Univ.) |
| Vice Chair | Hiroshi Takahashi(Ehime Univ.) / Michihiro Koibuchi(NII) / Kota Nakajima(Fujitsu Lab.) |
| Secretary | Hiroshi Takahashi(Nihon Univ.) / Michihiro Koibuchi(Chiba Univ.) / Kota Nakajima(Nagoya Inst. of Tech.) / (Hokkaido Univ.) |
| Assistant | / Eiji Arima(Univ. of Tokyo) / Shugo Ogawa(Hitachi) |
| Paper Information | |
| Registration To | Technical Committee on Dependable Computing / Technical Committee on Computer Systems / Special Interest Group on System Architecture |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Proposal and Development of Copy Speed Control Method for Non-disruptive Migration between Storage Systems |
| Sub Title (in English) | |
| Keyword(1) | Storage System |
| Keyword(2) | Copy Speed Control |
| Keyword(3) | Experiment |
| 1st Author's Name | Akihiro Hara |
| 1st Author's Affiliation | Hitachi,Ltd,.(Hitachi) |
| 2nd Author's Name | Hiroaki Akutsu |
| 2nd Author's Affiliation | Hitachi,Ltd,.(Hitachi) |
| 3rd Author's Name | Tomohiro Kawaguchi |
| 3rd Author's Affiliation | Hitachi,Ltd,.(Hitachi) |
| Date | 2019-06-11 |
| Paper # | CPSY2019-3,DC2019-3 |
| Volume (vol) | vol.119 |
| Number (no) | CPSY-76,DC-77 |
| Page | pp.pp.33-38(CPSY), pp.33-38(DC), |
| #Pages | 6 |
| Date of Issue | 2019-06-04 (CPSY, DC) |