Planned Extensions to the Linux Ext2/Ext3 Filesystem
Proceedings of the FREENIX Track: 2002 USENIX Annual Technical Conference
An efficient management scheme for large-scale flash-memory storage systems
Proceedings of the 2004 ACM symposium on Applied computing
Efficient identification of hot data for flash memory storage systems
ACM Transactions on Storage (TOS)
Porting the SGI XFS file system to Linux
ATEC '00 Proceedings of the annual conference on USENIX Annual Technical Conference
Scalability in the XFS file system
ATEC '96 Proceedings of the 1996 annual conference on USENIX Annual Technical Conference
Design tradeoffs for SSD performance
ATC'08 USENIX 2008 Annual Technical Conference on Annual Technical Conference
Extending SSD lifetimes with disk-based write caches
FAST'10 Proceedings of the 8th USENIX conference on File and storage technologies
Block management in solid-state devices
USENIX'09 Proceedings of the 2009 conference on USENIX Annual technical conference
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In this paper, we present a hybrid file system, called hybridFS, whose primary objective is to put together attractive features of both HDD and SSD, to construct a large-scale, virtualized address space in a cost-effective way. HybridFS was designed to take advantage of SSD's high I/O performance, while providing a flexible internal structure to utilize excellent sequential performance of existing file systems. To optimize the limited space capacity of SSD partition, hybridFS supports to define several data sections whose extent size can differ from each other. Such a pre-determined extent size enables to define a data section in such a way to minimize the wasted hole of an extent, by closely matching a multiple of extent size to the file size to be allocated in the data section. Several experiments were conducted to verify the performance of hybridFS.