Adaptive Track Replica in Storing Multimedia Data
Jun Liu · Jisuanji gongcheng · 2005
This paper proposes an adaptive track replica placement in disk to decrease average disk seeking distance.The strategy is that,first it rearranges those blocks,which are accessed highly frequently,and replicates them in the disk surface.It disscusses n-way adaptive track replica and n-d-way adaptive track replica,and makes lots of simulations,the results show that these strategies can decrease over 15% disk seeking distance,compared with only block rearrangement strategy.