A Dynamic Rebuild Strategy of Multi-host System Volume on Transparence Computing Mode

By statistical analysis of a few isomorphic hosts booting remotely and deployed separately from a shared system volume, a similar model is proposed on the transparence computing mode. A kind of information left on the rewritten SCE (similar collection elements) will instruct the hosts to quickly sense and rapidly position the rewritten SCE when they rebuild their system volumes. Based on the two dimension local characteristic (TDLC) of rewritten blocks, a system rebuild strategy (SRS) is proposed. The time complexity of the SRS in positioning rewritten address is O(1). An optimistic forecast algorithm and a prefetching strategy to accelerate the I/O processing are proposed. The experiment result shows that the multi-host system rebuild strategy (SRS) takes on a favorable performance and stability.