| A Network-Attached Storage System Supporting Guaranteed QoS |
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| 作者姓名： | KONG Hua-feng YU Sheng-sheng LU Hong-wei |
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| 作者单位： | [1]School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China |
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| 基金项目： | Supported by the National Defense Pre-Research Project （00J16.2.6. JW0533） |
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| 摘 要： | We propose a network-attached storage system that can support guaranteed Quality of Service （QoS）, called POPNet Storage. The special policy of date access and disk scheduling is enable users to access files quickly and directly with guaranteed QoS in the POPNet Storage. The POPNet Storage implements a measurement-based admission control algorithm （PSMBAC） to determine whether to admit a new data access request stream and admit as many requests as possible while meeting the QoS guarantees to its clients. The data reconstruction algorithms in the POPNet Storage also put more emphasis on data availability and guaranteed QoS, thus it is designed to complete the data recovery as soon as possible and at the same time provide the guaranteed QoS for high-priority data access. The experiment results show that the POPNet Storage can provide more significant performance, reliability, and guaranteed QoS than conventional storage systems.
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| 关 键 词： | 计算机网络 存储系统 磁盘 时序安排 |
| 文章编号： | 1007-1202（2005）05-0838-05 |
| 收稿时间： | 2004-11-15 |
A network-attached storage system supporting guaranteed QoS |
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| KONG Hua-feng YU Sheng-sheng LU Hong-wei.A Network-Attached Storage System Supporting Guaranteed QoS[J].Wuhan University Journal of Natural Sciences,2005,10(5):838-842. |
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| Authors: | Kong Hua-feng Yu Sheng-sheng Lu Hong-wei |
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| Institution: | (1) School of Computer Science and Technology, Huazhong University of Science and Technology, 130074 Wuhan, Hubei, China |
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| Abstract: | We propose a network-attached storage system that can support guaranteed Quality of Service (QoS), called POPNet Storage. The special policy of date access and disk scheduling is enable users to access files quickly and directly with guaranteed QoS in the POPNet Storage. The POPNet Storage implements a measurement-based admission control algorithm (PSMBAC) to determine whether to admit a new data access request stream and admit as many requests as possible while meeting the QoS guarantees to its clients. The data reconstruction algorithms in the POPNet Storage also put more emphasis on data availability and guaranteed QoS, thus it is designed to complete the data recovery as soon as possible and at the same time provide the guaranteed QoS for high-priority data access. The experiment results show that the POPNet Storage can provide more significant performance, reliability, and guaranteed QoS than conventional storage systems. |
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| Keywords: | network-attached storage storage system QoS disk scheduling admission control |
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