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The application of two-level cache in RAID system

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3 Author(s)
Chen Yun ; Dept. of Autom., Shanghai Jiao Tong Univ., China ; Yang Genke ; Wu Zhiming

In a RAID system, the cache is one of the important factors that can affect general system performance. As a two-level cache usually brings better performance than a one-level cache in the processors of personal computers and embedded systems, a two-level cache system that exploits both temporal and spatial localities effectively is proposed as the cache structure for a RAID system. The proposed cache system consists of two layers of caches, i.e., a set associative cache with small block size and a fully associative spatial cache with large block size. According to the results of simulation, the hit ratio and hit times can be improved with the two-level cache structure.

Published in:

Intelligent Control and Automation, 2002. Proceedings of the 4th World Congress on  (Volume:2 )

Date of Conference:

2002