Reducing Energy Consumption of Disk Storage Using Power-Aware Cache Management
HPCA '04 Proceedings of the 10th International Symposium on High Performance Computer Architecture
Performance directed energy management for main memory and disks
ACM Transactions on Storage (TOS)
Exploiting redundancy to conserve energy in storage systems
SIGMETRICS '06/Performance '06 Proceedings of the joint international conference on Measurement and modeling of computer systems
PARAID: A gear-shifting power-aware RAID
ACM Transactions on Storage (TOS)
Optimizing power consumption in large scale storage systems
HOTOS'07 Proceedings of the 11th USENIX workshop on Hot topics in operating systems
Proceedings of the VLDB Endowment
Markov Model Based Disk Power Management for Data Intensive Workloads
CCGRID '09 Proceedings of the 2009 9th IEEE/ACM International Symposium on Cluster Computing and the Grid
Analysis of trade-off between power saving and response time in disk storage systems
IPDPS '09 Proceedings of the 2009 IEEE International Symposium on Parallel&Distributed Processing
A spin-up saved is energy earned: achieving power-efficient, erasure-coded storage
HotDep'08 Proceedings of the Fourth conference on Hot topics in system dependability
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Existing computer systems do not allow the user to access the system when turning off the disk containing the OS for saving energy. Thus existing studies have focused on devising effective disk spin up/down schemes. This paper proposes the scheme to keep on providing limited services as well as to improve the energy consumption in computer system. To do so, we employ the method that moves the root file system of the HDD to a RAM disk, in order to be able to access the system even in the case of a power-down of the disk containing the OS. Also, we realize the autonomic system migration by judging the system activity -- the CPU and user activity. By doing so the power management system can reduce the power more remarkably than in existing systems, and in experimental evaluation we could save power consumption of 8.1 - 14.4 percent.