Data Management

RS-Wrapper: Random Write Optimization for Solid State Drive

Date Added: Nov 2009
Format: PDF

Solid State Drive (SSD), emerging as new data storage media with high random read speed, has been widely used in laptops, desktops, and data servers to replace hard disk during the past few years. However, poor random write performance becomes the bottle neck in practice. In this paper, the authors propose to insert unmodified data into random write sequence in order to convert random writes into sequential writes, and thus data sequence can be flushed at the speed of sequential write. Further, they propose a clustering strategy to improve the performance by reducing quantity of unmodified data to read.