ACM Transactions on Computer Systems (TOCS)
A dynamic disk spin-down technique for mobile computing
MobiCom '96 Proceedings of the 2nd annual international conference on Mobile computing and networking
File system aging—increasing the relevance of file system benchmarks
SIGMETRICS '97 Proceedings of the 1997 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
A performance-oriented energy efficient file system
SNAPI '04 Proceedings of the international workshop on Storage network architecture and parallel I/Os
Energy efficient prefetching and caching
ATEC '04 Proceedings of the annual conference on USENIX Annual Technical Conference
File system logging versus clustering: a performance comparison
TCON'95 Proceedings of the USENIX 1995 Technical Conference Proceedings
Embedded inodes and explicit grouping: exploiting disk bandwidth for small files
ATEC '97 Proceedings of the annual conference on USENIX Annual Technical Conference
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File systems, which are embedded in low-power computer systems, have continuously improved energy saving features. However, the inevitable aging of the file system gives disks less chances to stay idle, thus increasing the energy consumption along with the decrease in performance. As a solution to the problem, we propose the energy-aware block reallocation framework (EAR), which is a software framework with a reallocation algorithm applicable to file systems. EAR dynamically reallocates fragmented data with the same relationship to disk locations where less disk accesses and seeks are achieved. The optimized file data layout improves the energy saving on aged disks.