CosaFS: A Cooperative Shingle-aware File System
文献类型：期刊论文
| 作者 | Lingfang Zeng; Zehao Zhang; Yang Wang; Dan Feng; Kenneth Kent |
| 刊名 | ACM Transactions on Storage
 |
| 出版日期 | 2017 |
| 文献子类 | 期刊论文 |
| 英文摘要 | n this paper, we design and implement a cooperative shingle-aware File system, called CosaFS, on heterogeneous storage devices that mix solid-state drives (SSDs) and shingled magnetic recording (SMR) technology to improve the overall performance of storage systems. The basic idea of CosaFS is to classify objects as hot or cold objects based on a proposed Lookahead with Recency Weight (LRW) scheme. If an object is identified as a hot (small) object, it will be served by SSD. Otherwise, cold (large) objects are stored on SMR. For an SMR, large objects can be accessed in large sequential blocks, rendering the performance of their accesses comparable with that of accessing the same large sequential blocks as if they were stored on a hard drive. Small objects, such as inodes and directories, are stored on the SSD where ‘seeks’ for such objects are nearly free. With thorough empirical studies, we demonstrate that CosaFS, as a cooperative shingle-aware file system, with meta-data separation and cache-assistance is a very e ective way to handle the disk-based data demanded by the shingled writes, and outperforms the device- and host-side shingle-aware file systems in terms of throughput, IOPS, and access latency as well. |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000419035900007 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/12534]  |
| 专题 | 深圳先进技术研究院_数字所 |
| 作者单位 | ACM Transactions on Storage |
| 推荐引用方式 GB/T 7714 | Lingfang Zeng,Zehao Zhang,Yang Wang,et al. CosaFS: A Cooperative Shingle-aware File System[J]. ACM Transactions on Storage,2017. |
| APA | Lingfang Zeng,Zehao Zhang,Yang Wang,Dan Feng,&Kenneth Kent.(2017).CosaFS: A Cooperative Shingle-aware File System.ACM Transactions on Storage. |
| MLA | Lingfang Zeng,et al."CosaFS: A Cooperative Shingle-aware File System".ACM Transactions on Storage (2017). |
入库方式： OAI收割
来源：深圳先进技术研究院
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