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2007 International Conference on Networking, Architecture, and Storage (NAS 2007) (2007)
Guilin, China
July 29, 2007 to July 31, 2007
ISBN: 0-7695-2927-5
pp: 185-192
Zhikun Wang , Huazhong University of Science and Technology, China
Ke Zhou , Huazhong University of Science and Technology, China
Dan Feng , Huazhong University of Science and Technology, China
Lingfang Zeng , Huazhong University of Science and Technology, China
Junping Liu , Huazhong University of Science and Technology, China
ABSTRACT
Traditional disk arrays have a centralized architecture, with a single controller through which all requests flow. Such a controller is a single point of failure, and its performance limits the maximum number of disks to which the array can scale. Fat-trees are well-adopted as the topologies of interconnection networks because of many nice properties they have. We propose a novel Fat-tree based parallel RAID architecture - FTRAID. The unit of deployment in FTRAID is a storage node, a small rack-mounted storage appliance built from commodity components including CPU, RAM, NIC and Disks. We also establish Stochastic Petri Net (SPN) model of storage node to analyze its utilization. In particular we have designed and implemented a seven node FTRAID prototype to demonstrate its feasibility. Numerical results using popular benchmark have shown good performance gain.
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CITATION

K. Zhou, Z. Wang, L. Zeng, D. Feng and J. Liu, "FTRAID: A Fat-tree Based Parallel Storage Architecture for Very Large Disk Array," 2007 International Conference on Networking, Architecture, and Storage (NAS 2007)(NAS), Guilin, China, 2007, pp. 185-192.
doi:10.1109/NAS.2007.25
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