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Analysis and optimization for RAID small data random access
Li-Fang WANG Zhi-Qiang LIU
Journal of Computer Applications
In order to make multiple disks accessible parallelly, the stripe layout is adopted by RAID for high-bandwidth. The approach is appropriate for big sequential data access, but is not that effective for small data random access. This paper analyzed the I/O performance based on RAID Stripe size, explored the IOPS(IOs per second)of multiple user small data access, and proposed a new stripe layout architecture—Thick Granularity Model. The simulation indicates: the I/O performance of Thick Granularity Model has been improved,especially in small data random access.
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