NDLI: PEARL: Performance, Energy, and Reliability Balanced Dynamic Data Redistribution for Next Generation Disk Arrays

Content Provider	IEEE Xplore Digital Library
Author	Tao Xie Yao Sun
Copyright Year	2008
Description	Author affiliation: San Diego State Univ., San Diego, CA (Tao Xie) \|\| Teradata Corp., OH (Yao Sun)
Abstract	Contemporary disk arrays consist purely of hard disk drives, which normally provide huge storage capacities with low-cost and high-throughput for data-intensive applications. Nevertheless, they have some inhenrent disadvantages such as long access latencies, high annual disk replacement rates, fragile physical characteristics, and energy-inefficiency due to their build-in mechanical and electronic mechanisms. Flash-memory based solid state disks, on the other hand, although currently more expensive and inadequate in write cycles, offer much faster aread accesses and are much more robust and energy efficient. To combine the complementary merits of hard disks and flash disks, in this paper we propose a hybrid disk array architecture named HIT (hybrid disk storage) for data-intensive applications. Next, a dynamic data redistribution strategy called PEARL (performance, energy, and reliability balanced), which can periodically redistribute data between flash and hard disks to adapt to the changing data access patterns, is developed on top of the HIT architecture.
Starting Page	1
Ending Page	8
File Size	5535944
Page Count	8
File Format	PDF
ISBN	9781424428175
ISSN	15267539
DOI	10.1109/MASCOT.2008.4770583
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-09-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Hard disks Flash memory Energy conservation Computer architecture Solid state circuits Energy efficiency Buffer storage Delay Load management Heuristic algorithms
Content Type	Text
Resource Type	Article

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Partial Parity Cache and Data Cache Management Method to Improve the Performance of an SSD-Based RAID

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PEARL: Performance, Energy, and Reliability Balanced Dynamic Data Redistribution for Next Generation Disk Arrays

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