We propose a distributed storage system which relocates data blocks autonomously among the storage nodes. In order to optimize I/O performance with slight administrative workload, our system is aimed at the realization of the following two functions; (i) Run-time construction of the storage tiers from the heterogeneous storage devices, and (ii) Automated block migration among the tiers. We also show a technique to reduce management traffic in iSCSI environment.
展开▼
