SYSTEM FOR TRANSFERRING RELATED DATA OBJECT IN DISTRIBUTED DATA STORAGE ENVIRONMENT AND METHOD FOR THE SAME

摘要

PROBLEM TO BE SOLVED: To transfer data objects belonging to a common group while maintaining the grouping of data objects in a distributed data storage environment. SOLUTION: Data objects can be transferred in the order of not the grouping of those data objects but the preservation of the data objects. When the data objects are transferred from a source site to a target site, attribute information including unique group identifiers are related with those data objects. In the target site, the attribute information of each data object is received and analyzed. When those data objects are received, each data object is related with the group of the data objects by using an import group list in which the groups of the data objects are listed. The data objects in the group whose members are not received are listed in an unsolved object list. After the grouping is completed, all the data objects of the group are removed from the unsolved object list. When the data transfer session is ended, all the data objects listed in the unsolved object list are erased.