{"title":"分布式iSCSI RAID性能评估","authors":"Xubin He, Praveen Beedanagari, Dan Zhou","doi":"10.1145/1162618.1162620","DOIUrl":null,"url":null,"abstract":"iSCSI is a newly emerging protocol with the goal of implementing the storage area network (SAN) technology over TCP/IP, which brings economy and convenience whereas it also raises performance and reliability issues. This paper identifies the performance bottleneck of iSCSI, and then proposes a distributed iSCSI RAID to improve the performance by stripping data among iSCSI targets (S-iRAID) and improve the reliability by using rotated parity for data blocks (P-iRAID). Numerical results using popular benchmark have shown dramatic performance gain. S-iRAID improves the average throughput from 11.7MB/s to 46.1 MB/s by striping data among only three iSCSI targets. S-iRAID and P-iRAID can speed up the iSCSI performance by a factor of up to 6.6 and 2.17, respectively.","PeriodicalId":447113,"journal":{"name":"International Workshop on Storage Network Architecture and Parallel I/Os","volume":"17 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2003-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"21","resultStr":"{\"title\":\"Performance evaluation of distributed iSCSI RAID\",\"authors\":\"Xubin He, Praveen Beedanagari, Dan Zhou\",\"doi\":\"10.1145/1162618.1162620\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"iSCSI is a newly emerging protocol with the goal of implementing the storage area network (SAN) technology over TCP/IP, which brings economy and convenience whereas it also raises performance and reliability issues. This paper identifies the performance bottleneck of iSCSI, and then proposes a distributed iSCSI RAID to improve the performance by stripping data among iSCSI targets (S-iRAID) and improve the reliability by using rotated parity for data blocks (P-iRAID). Numerical results using popular benchmark have shown dramatic performance gain. S-iRAID improves the average throughput from 11.7MB/s to 46.1 MB/s by striping data among only three iSCSI targets. S-iRAID and P-iRAID can speed up the iSCSI performance by a factor of up to 6.6 and 2.17, respectively.\",\"PeriodicalId\":447113,\"journal\":{\"name\":\"International Workshop on Storage Network Architecture and Parallel I/Os\",\"volume\":\"17 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2003-09-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"21\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Workshop on Storage Network Architecture and Parallel I/Os\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1145/1162618.1162620\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Workshop on Storage Network Architecture and Parallel I/Os","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1145/1162618.1162620","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
iSCSI is a newly emerging protocol with the goal of implementing the storage area network (SAN) technology over TCP/IP, which brings economy and convenience whereas it also raises performance and reliability issues. This paper identifies the performance bottleneck of iSCSI, and then proposes a distributed iSCSI RAID to improve the performance by stripping data among iSCSI targets (S-iRAID) and improve the reliability by using rotated parity for data blocks (P-iRAID). Numerical results using popular benchmark have shown dramatic performance gain. S-iRAID improves the average throughput from 11.7MB/s to 46.1 MB/s by striping data among only three iSCSI targets. S-iRAID and P-iRAID can speed up the iSCSI performance by a factor of up to 6.6 and 2.17, respectively.
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