Conserving disk energy in network servers
ICS '03 Proceedings of the 17th annual international conference on Supercomputing
DRPM: dynamic speed control for power management in server class disks
Proceedings of the 30th annual international symposium on Computer architecture
X-RAY: A Non-Invasive Exclusive Caching Mechanism for RAIDs
Proceedings of the 31st annual international symposium on Computer architecture
Reducing Energy Consumption of Disk Storage Using Power-Aware Cache Management
HPCA '04 Proceedings of the 10th International Symposium on High Performance Computer Architecture
Hibernator: helping disk arrays sleep through the winter
Proceedings of the twentieth ACM symposium on Operating systems principles
Proceedings of the twentieth ACM symposium on Operating systems principles
Energy-aware data prefetching for multi-speed disks
Proceedings of the 3rd conference on Computing frontiers
EERAID: energy efficient redundant and inexpensive disk array
Proceedings of the 11th workshop on ACM SIGOPS European workshop
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
FAST '07 Proceedings of the 5th USENIX conference on File and Storage Technologies
Prefetching with adaptive cache culling for striped disk arrays
ATC'08 USENIX 2008 Annual Technical Conference on Annual Technical Conference
SRCMap: energy proportional storage using dynamic consolidation
FAST'10 Proceedings of the 8th USENIX conference on File and storage technologies
Cost effective storage using extent based dynamic tiering
FAST'11 Proceedings of the 9th USENIX conference on File and stroage technologies
FAST'12 Proceedings of the 10th USENIX conference on File and Storage Technologies
Power-reduction techniques for data-center storage systems
ACM Computing Surveys (CSUR)
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In this paper, we describe a design of a novel architecture for RAID that uses an SSD as a large cache to conserve energy. This approach stems from the fact that short term footprints are small enough to be efficiently managed within an SSD. More specifically, in this study, we consider two simple approaches to reduce the energy consumed in RAID. First, when a read happens in RAID, a copy of the read request is copied to the SSD, so that future requests may be serviced by the SSD. Then, for writes, all writes are buffered in SSDs so that the interval between requests may be increased reducing activities at RAID disks. We incorporate these approaches into a real implementation of a RAID 5 system that consists of four hard disks and an SSD in a Linux environment. Our preliminary results in actual performance measurements using the cello99 and SPC traces show that energy consumption is reduced by a maximum of 14%.