QMD: Exploiting Flash for Energy Efficient Disk Arrays
DocUID: 2011-012 Full Text:
PDF Author: Sean M. Snyder, Shimin Chen, Panos K. Chrysanthis, Alexandros Labrinidis
Abstract: Energy consumption for computing devices in general and for data centers in particular is receiving increasingly high attention, both because of the increasing ubiquity of computing and also because of increasing energy prices. In this work, we propose QMD (Quasi Mirrored Disks) that exploit flash as a write buffer to complement RAID systems consisting of hard disks. QMD along with par- tial on-line mirrors, are a first step towards energy proportionality which is seen as the "holy grail" of energy-efficient system design. QMD exhibits significant energy savings of up 31%, as per our evaluation study using real workloads.
Published In: Proc. of Seventh International Workshop on Data Management on New Hardware
ISBN: 978-1-4503-0658-4
Pages: pp. 41-49
Place Published: Athens, Greece
Year Published: 2011
Note: held in conjunction with the 2011 ACM SIGMOD/PODS Conference, DOI:10.1145/1995441.1995447
Project: Energy Subject Area: Energy Efficiency
Publication Type: Workshop Paper
Sponsor: NSF IIS-1050301, NSF CAREER IIS-0746696, NSF IIS-1050302
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