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Efficient Metadata Management for Flash File Systems
May 05-May 07
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/ISORC.2008.342008 11th IEEE Symposium on Object Or ...
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Jaegeuk Kim, Heeseung Jo, Hyotaek Shim, Jin-Soo Kim, Seungryoul Maeng, "Efficient Metadata Management for Flash File Systems," Object-Oriented Real-Time Distributed Computing, IEEE International Symposium on, pp. 535-540, 2008 11th IEEE Symposium on Object Oriented Real-Time Distributed Computing (ISORC), 2008.
 
 
BibTex
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@article{ 10.1109/ISORC.2008.34,
author = {Jaegeuk Kim and Heeseung Jo and Hyotaek Shim and Jin-Soo Kim and Seungryoul Maeng},
title = {Efficient Metadata Management for Flash File Systems},
journal ={Object-Oriented Real-Time Distributed Computing, IEEE International Symposium on},
volume = {0},
year = {2008},
isbn = {978-0-7695-3132-8},
pages = {535-540},
doi = {http://doi.ieeecomputersociety.org/10.1109/ISORC.2008.34},
publisher = {IEEE Computer Society},
address = {Los Alamitos, CA, USA},
}
 
 
RefWorks Procite/RefMan/Endnote
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TY - CONF
JO - Object-Oriented Real-Time Distributed Computing, IEEE International Symposium on
TI - Efficient Metadata Management for Flash File Systems
SN - 978-0-7695-3132-8
SP535
EP540
A1 - Jaegeuk Kim,
A1 - Heeseung Jo,
A1 - Hyotaek Shim,
A1 - Jin-Soo Kim,
A1 - Seungryoul Maeng,
PY - 2008
KW - Flash Memory
KW - File System
KW - Metadata Management
KW - Directory Structure
VL - 0
JA - Object-Oriented Real-Time Distributed Computing, IEEE International Symposium on
ER -
 
NAND flash memory becomes one of the most popular storage for portable embedded systems. Although many flash-aware file systems, such as JFFS2 and YAFFS2, were proposed, the large memory consumption and the longmount delay have been serious obstacles for large-capacity NAND flash memory. In this paper, we present a new flash-aware file system called DFFS (Direct Flash File System) which fetches only the needed metadata on demand from flash memory. In addition, DFFS employs two novel metadata management schemes, inode embedding scheme and hybrid inode indexing scheme, to improve the performance of metadata operations. Comprehensive evaluation results using microbenchmark, postmark, and Linux kernel compilation trace, show that DFFS has comparable performance to JFFS2 and YAFFS2, while achieving a small memory footprint and instant mount time.
Index Terms:
Flash Memory, File System, Metadata Management, Directory Structure
Citation:
Jaegeuk Kim, Heeseung Jo, Hyotaek Shim, Jin-Soo Kim, Seungryoul Maeng, "Efficient Metadata Management for Flash File Systems," isorc, pp.535-540, 2008 11th IEEE Symposium on Object Oriented Real-Time Distributed Computing (ISORC), 2008
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