Hot Block Clustering for Disk Arrays with Dynamic Striping

  title={Hot Block Clustering for Disk Arrays with Dynamic Striping},
  author={Kazuhiko Mogi and Masaru Kitsuregawa},
RAID5 disk arrays provide high performance and high reliability for reasonable cost. However RAID5 suffers a performance penalty during block updates. In order to overcome this problem, the use of dynamic striping was proposed. This method buffers a number of updates, generates a new stripe composed of newly updated blocks, and then writes the new full stripe back to disks. In this paper, we examine the effect of access locality on the dynamic striping method. To further improve performance in… CONTINUE READING
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