An update-overhead-aware caching policy for write-optimized file systems on SMR disks

Shuo Han Chen, Wei Shin Li, Min Hong Shen, Yi Han Lien, Tseng Yi Chen, Tsan Sheng Hsu, Hsin Wen Wei, Wei Kuan Shih

研究成果: 書貢獻/報告類型會議論文篇章同行評審

摘要

To accommodate the sheer volume of data in the era of Big Data and Cloud Computing, both new storage medium technologies and high-performance file systems are proposed. For storage medium, Shingled Magnetic Recording (SMR) increases the areal density by overlapping adjacent tracks so as to provide larger storage capacity. On the other hand, write-optimized indexes (WOI) file systems are also studied and can now outperform conventional file systems with orders of magnitude. However, the main drawback of SMR is the random-write restriction because random-write operations will cause the extra overhead of rewriting data stored in overlapped tracks. The rewriting overhead is amplified by the recursive entry update behavior of WOI-based file systems. Therefore, the rewriting issue becomes a serious performance overhead when adopting SMR drives as underlying storage devices for WOI-based file systems. To mitigate the write amplification problem when deploying WOI-based file systems on SMR disks, this paper proposes the update-overhead-aware caching policy to reduce the update overhead with the help of flash-based storage devices. To evaluate the performance of the proposed design, the B+-tree as a case study. The experimental results are promising.

原文???core.languages.en_GB???
主出版物標題2017 IEEE 36th International Performance Computing and Communications Conference, IPCCC 2017
發行者Institute of Electrical and Electronics Engineers Inc.
頁面1-2
頁數2
ISBN(電子)9781509064687
DOIs
出版狀態已出版 - 2 2月 2018
事件36th IEEE International Performance Computing and Communications Conference, IPCCC 2017 - San Diego, United States
持續時間: 10 12月 201712 12月 2017

出版系列

名字2017 IEEE 36th International Performance Computing and Communications Conference, IPCCC 2017
2018-January

???event.eventtypes.event.conference???

???event.eventtypes.event.conference???36th IEEE International Performance Computing and Communications Conference, IPCCC 2017
國家/地區United States
城市San Diego
期間10/12/1712/12/17

指紋

深入研究「An update-overhead-aware caching policy for write-optimized file systems on SMR disks」主題。共同形成了獨特的指紋。

引用此