Virtual storage arrays consolidate branch data storage at data centers connected via wide area networks. Virtual storage arrays appear to storage clients as local data storage; however, virtual storage arrays actually store data at the data center. The virtual storage arrays overcomes bandwidth and latency limitations of the wide area network by predicting and prefetching storage blocks, which are then cached at the branch location. Virtual storage arrays leverage an understanding of the semantics and structure of high-level data structures associated with storage blocks to predict which storage blocks are likely to be requested by a storage client in the near future. Virtual storage arrays determine the association between requested storage blocks and corresponding high-level data structure entities to predict additional high-level data structure entities that are likely to be accessed. From this, the virtual storage array identifies the additional storage blocks for prefetching.
申请公布号
WO2010111312(A2)
申请公布日期
2010.09.30
申请号
WO2010US28375
申请日期
2010.03.23
申请人
RIVERBED TECHNOLOGY, INC.;WU, DAVID TZE-SI;MCCANNE, STEVEN;DEMMER, MICHAEL J.;GUPTA, NITIN
发明人
WU, DAVID TZE-SI;MCCANNE, STEVEN;DEMMER, MICHAEL J.;GUPTA, NITIN