Information technology source migration

A management system for managing IT (Information Technology) sources, the management system comprising:

• a first computer system;
• at least one computer service system;
• and
• a service director computer connected to the first computer system and the at least one computer service system via a network, wherein the service director computer
• obtains a resource utilization trend of the first computer system based on a history of utilization of an IT resource in the first computer system;
• obtains a data sending throughput rate from the first computer system to each of the at least one computer service system;
• selects, based on the resource utilization trend and the data sending throughput rate, a target computer service system among the at least one computer service system to migrate a workload from the first computer system to the target computer service system;
• determines, based on the resource utilization trend and the data sending throughput rate, a start time to start a precede data copy associated with the workload to be migrated from the first computer system to the target computer service system, prior to switching over processing of the workload to be migrated from the on premise system to the target computer service system at a switching time;
• and
• starts the precede data copy associated with the workload to be migrated from the first computer system to the target computer service system at the start time.

A computer-readable storage medium storing a plurality of instructions for controlling a data processor to manage IT (Information Technology) sources among a first computer system and at least one computer service system which are connected with a network, the plurality of instructions comprising:

• instructions that cause the data processor to obtain a resource utilization trend of the first computer system based on a history of utilization of an IT resource in the first computer system;
• instructions that cause the data processor to obtain a data sending throughput rate from the first computer system to each of the at least one computer service system;
• instructions that cause the data processor to select, based on the resource utilization trend and the data sending throughput rate, a target computer service system among the at least one computer service system to migrate a workload from the first computer system to the target computer service system;
• instructions that cause the data processor to determine, based on the resource utilization trend and the data sending throughput rate, a start time to start a precede data copy associated with the workload to be migrated from the first computer system to the target computer service system, prior to switching over processing of the workload to be migrated from the on premise system to the target computer service system at a switching time;
• and
• instructions that cause the data processor to start the precede data copy associated with the workload to be migrated from the first computer system to the target computer service system at the start time.