CLOUD COMPUTING SYSTEM AND DATA SYNCHRONIZATION METHOD THEREFOR

摘要

A cloud computing system is a plurality of small medium business (SMB) network systems constructed in the respective enterprises. Each SMB network system comprises: an SMB network system including a plurality of first client terminals and physical network-attached storages (NASs) for storing files processed by the client terminals; and a cloud hosting and storage system which generates virtual NASs corresponding to the physical NASs in accordance with the requests for cloud hosting service made by the respective physical NASs through a network, and allocates a virtual storage space for the SMB network system that stores backup files of the original files stored in the physical NASs so as to perform data synchronization between the physical NASs and the virtual NASs.