| 磁盘阵列校验信息的放置策略 |
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| 引用本文： | 金海,张江陵.磁盘阵列校验信息的放置策略[J].数据采集与处理,1994,9(3):220-224. |
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| 作者姓名： | 金海 张江陵 |
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| 作者单位： | 华中理工大学计算机系 |
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| 基金项目： | 国家教委博士点专项基金 |
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| 摘 要： | 廉价磁盘冗余阵列（ＲＡＩＤ）采用许多小的廉价磁盘来代替大容量昂贵的磁盘，以取得更高的性能和更低的功耗。本文介绍了ＲＡＩＤ－５级磁盘阵列中校验信息的八种不同的分布策略，即奇偶校验信息的放置策略，并从几个不同的应用情况对不同的放置策略进行了研究，结论是不同的奇偶校验信息放置策略对磁盘阵列的Ｉ／Ｏ读写性能有很大的影响。
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| 关 键 词： | 奇偶校验 性能分析 磁盘阵列 校验信息 |
Placement Strategy of Parity Information in RAID |
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| Jin Hai, Zhang Jiangling.Placement Strategy of Parity Information in RAID[J].Journal of Data Acquisition & Processing,1994,9(3):220-224. |
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| Authors: | Jin Hai Zhang Jiangling |
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| Abstract: | Many small and inexpensive disks are substituted for massive disk in the reduntant array of inexpellsive disks (RAID) technology to gain higher performance and lower consume. In this paper, 8 kinds of different placement of parity of RAID level 5 are discussed.Performance evaluation of placement of parity information in different application environments is studied in detail.The conclusion is different kinds of placement of parity information can produce a great deal of effects on I/O read/write performance of RAID. |
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| Keywords: | parity check performance analysis fault-tolerant computing disk array |
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