Though erasure codes are widely adopted in high fault tolerance storage systems, there exists a serious small-write problem. Many algorithms are proposed to improve small-write performance in RAID systems, without considering the network bandwidth usage. However, the network bandwidth is expensive in cloud systems. In this thesis, we proposed an ECL-based (E-MBR codes, Caching and Logging-based) technique to improve the small-write performance without using extra network bandwidth. In addition, the ECL-based technique also reduces the delayed parity update and data recovery latency compared with the competing algorithm.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-1116112-142818 |
| Date | 16 November 2012 |
| Creators | Zhu, Jia-Zheng |
| Contributors | Wei-Kuang Lai, Shun-Ren Yang, Hung-Yu Wei, Chung-Nan Lee, Tsang-Ling Sheu |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-1116112-142818 |
| Rights | user_define, Copyright information available at source archive |
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