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A single flash-based Solid State Drive (SSD) can not satisfy the capacity, performance and reliability requirements of a modern storage system supporting increasingly demanding data-intensive computing applications. Applying RAID schemes to SSDs to meet these requirements, while a logical and viable solution, faces many challenges. In this paper, we propose a Hybrid Parity-based Disk Array architecture,...
Existing power-aware optimization schemes for disk-array systems tend to strike a delicate balance between energy consumption and performance while ignoring reliability. To achieve a reasonably good trade-off among these three important design objectives in this paper we introduce an energy efficient disk array architecture, called a Green RAID (or GRAID), which extends the data mirroring redundancy...
RAID10 storage system suffers the relatively poor write performance due to the write request must be served by both disks in a mirror set. To address this problem, in this paper we propose a novel RAID10 storage architecture, called RAID10L, which extends the data mirroring redundancy of RAID10 by incorporating a dedicated log disk. The goal of RAID10L is to significantly improve the write performance...
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