ZTE Communications ›› 2018, Vol. 16 ›› Issue (3): 59-66.DOI: 10.19729/j.cnki.1673-5188.2018.03.010
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出版日期:2018-08-25发布日期:2020-03-18
Persistent Data Layout in File Systems
LUO Shengmei1, LU Youyou2, YANG Hongzhang1, SHU Jiwu2, ZHANG Jiacheng2
- 1.ZTE Corporation, Shenzhen 518057, China
2.Tsinghua University, Beijing 100084, China
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Online:2018-08-25Published:2020-03-18 -
About author:LUO Shengmei (luo.shengmei@zte.com.cn) received his master’s degree from Harbin Institute of Technology, China. He has been working with ZTE Corporation for over 20 years. His research interests include cloud computing and big data. He is a member of CIE and CCF.|LU Youyou (luyouyou@tsinghua.edu.cn) received the B.S. degree from Nanjing University, China in 2009 and the Ph.D. degree from Tsinghua University, China in 2015, both in computer science. He is currently an assistant researcher in the Department of Computer Science and Technology, Tsinghua University. His current research interests include nonvolatile memories and file systems. He received the best paper award at IEEE NVMSA’14 and the best paper runner-up at MSST’15. He is a member of the IEEE, ACM and CCF.|YANG Hongzhang (yang.hongzhang@zte.com.cn) received his master’s degree in computer science and technology from University of Chinese Academy of Sciences, China in 2015. He has been working with ZTE Corporation for 3 years. His research interests include distributed file system and cloud computing. His paper on pNFS was received by HPCA’15. He is a member of the IEEE, ACM and CCF.|SHU Jiwu (shujw@tsinghua.edu.cn) received the Ph.D. degree from the Department of Computer Science and Technology, Nanjing University, China. He is currently a professor in the Department of Computer Science and Technology, Tsinghua University, China. His current research interests include nonvolatile memories and file systems. He is IEEE Fellow and CCF Fellow.|ZHANG Jiacheng (zhang-jc13@mails.tsinghua.edu.cn) received the B.S. degree from Harbin Institute of Technology, China, in software engineering in 2013 and is now a Ph.D. candidate student in Tsinghua University, China, majoring in computer science. His current research interests include nonvolatile memories and storage system. His paper on flash-based file system was received by USENIX ATC’16. -
Supported by:This work was supported by ZTE Industry-Academia-Research Cooperation Funds.
引用本文
. [J]. ZTE Communications, 2018, 16(3): 59-66.
LUO Shengmei, LU Youyou, YANG Hongzhang, SHU Jiwu, ZHANG Jiacheng. Persistent Data Layout in File Systems[J]. ZTE Communications, 2018, 16(3): 59-66.
Figure 1. Data layout of the ext4 file system.
Figure 1. Data layout of the ext4 file system.
Figure 2. Data layout of a typical log-structured file system.
Figure 2. Data layout of a typical log-structured file system.
Figure 3. Data layout of the flash friendly file system.
Figure 3. Data layout of the flash friendly file system.
Figure 4. Node blocks in the flash friendly file system.
Figure 4. Node blocks in the flash friendly file system.
Figure 5. In-place update of traditional file system data.
Figure 5. In-place update of traditional file system data.
Figure 6. Copy-on-write update.
Figure 6. Copy-on-write update.
Figure 7. Basic structure of journaling file system.
Figure 7. Basic structure of journaling file system.
Figure 8. Basic structure of file system with virtual memory.
Figure 8. Basic structure of file system with virtual memory.
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