Study of massive data migration strategy on data evaluation
Yu Yonghao · Journal of Xi'an University of Architecture & Technology · 2012
According to the importance of data migration in hierarchical storage management(HSM),the paper proposes a data migration model based on data valuation.Calculated in proportion by the inherent properties and the expected value of data,exact expression of the data value can be acquired.Combined with the migration process control strategy,the corresponding value of the data will be assigned to compatible storage device.Simulation results show,compared to LRU and LFU,the migration algorithm can make the vast majority of access hit in the on-line storage devices.With the increase of the number of access,the accuracy of the algorithm can be improved gradually.