Abstract: A management server comprises: a grouping part that performs grouping a plurality of terminals including arbitrary terminals into a same group; a candidate selection part that selects a destination candidate server(s) from among a plurality of predetermined servers; and a connection destination determination part that determines, from among the destination candidate servers, a connection destination server to which the plurality of terminals connect, based on a difference in delays between the plurality of terminals belonging to the same group on a communication to the destination candidate server(s).

Abstract: A management server comprises: a grouping part that performs grouping a plurality of terminals including arbitrary terminals into a same group; a candidate selection part that selects a destination candidate server(s) from among a plurality of predetermined servers; and a connection destination determination part that determines, from among the destination candidate servers, a connection destination server to which the plurality of terminals connect, based on a difference in delays between the plurality of terminals belonging to the same group on a communication to the destination candidate server(s).

Abstract: A storage apparatus including a communication control unit that aggregates an oldest writing clock time for each of a plurality of storage units from a plurality of a retained pieces of information each relating to a writing clock time, calculates, for each of the plurality of storage units, a priority level having a positive correlation with a time difference between the aggregated oldest writing clock time and a predetermined reference clock time, assigns, to each of the plurality of storage units, a transmission bandwidth for transmission of at least one retained block of write data for each of the plurality of storage units among a plurality of the retained blocks of write data based on the calculated priority level, and transmits, for each of the plurality of storage units, the at least one retained block of write data to an external backup apparatus in accordance with the assigned transmission bandwidth.