@inproceedings{63eeece72790457f823d401585443651,
title = "Semi-RAID: A reliable energy-aware RAID data layout for sequential data access",
abstract = "In this paper, we propose an alternative RAID data layout, Semi-RAID (S-RAID), for the kind of application that exhibits a sequential data access pattern. The data layout of S-RAID uses a grouping strategy that makes only part of the whole array active and puts the rest of the array into standby mode. In this way S-RAID can greatly reduce the power consumption and improve the reliability while still satisfying the I/O requirements of the application. We have shown that transforming a traditional RAID 5 into S-RAID 5 makes average mean time to failure (MTTF) 8 times as long as before, and reduces the power consumption to 74\% in a 5-disk configuration. In a typical video surveillance system that has 25 disks, S-RAID may reduce the power consumption to nearly 15\% in the best case. The performance of S-RAID is evaluated and proved to be sufficient for the workloads it is optimized for. Possible optimization for other workloads has also been given at the end of the paper.",
author = "Xiao Li and Tan, \{Yu An\} and Zhizhuo Sun",
year = "2011",
language = "English",
isbn = "9781457704284",
series = "2011 IEEE 7th International Workshop on Storage Network Architecture and Parallel I/Os, SNAPI 2011",
publisher = "IEEE Computer Society",
booktitle = "2011 IEEE 7th International Workshop on Storage Network Architecture and Parallel I/Os, SNAPI 2011",
address = "United States",
note = "2011 IEEE 7th International Workshop on Storage Network Architecture and Parallel I/Os, SNAPI 2011 ; Conference date: 25-05-2011 Through 25-05-2011",
}