| 摘要 |
<p>A method and system for improving cloud computing data security, belonging to the technical field of data security. The method comprises: a user establishing an index information table for a physical LUN device available to an application embodiment of a cloud computing service, and according to the index information table, setting a corresponding rule of a virtual LBA address space and an actual data storage LBA address space of a virtual LUN device; according to the corresponding rule, the user establishing and storing the correlation between the virtual LBA address space and the actual data storage LBA address space; and according to the correlation, acquiring storage location information about actual data corresponding to the virtual LBA address space to which a read/write request points, and finishing I/O redirection. The system comprises an establishment module, a setting module, an establishment storing module and a redirection module. By means of the present invention, a data owner controls the generating method, storing method and location of metadata, a LUN device where the user data is located will not be illegally mounted, and the security of the user data is guaranteed.</p> |
