Renewable-aware preliminary data centr combination selection and application relocation method

A workload control method for controlling migration of workloads between a first data center and one or more second data centers, wherein the first data center and the one or more second data centers are among a plurality of data centers, and wherein the migration is controlled based on renewable energy supply at the data centers, comprising:

• calculating, by a data center management server a complementary score of each of the plurality of data centers based on information of time-series data of past renewable energy supply at the each of the plurality of data centers,
• determining, by the data center management server, the one or more second data centers as destination data centers for creation of remote copies to one or more volumes based on the complementary score;
• and
• executing, by the data center management server, creation of the remote copies to the one or more second data centers;
• and
• controlling, by the data center management server, migration of the workloads between the first data center and the one or more second data centers by swapping volume attributes between primary and secondary volumes in response to renewable energy supply at the first data center falling below a threshold to control use of renewable energy in executing workloads and reduce carbon emissions from the plurality of data centers.

A non-transitory computer readable medium, storing instructions that, when executed by a processor of a data center management server, cause the processor to perform a workload control process for controlling migration of workloads between a first data center and one or more second data centers from a plurality of data centers based on renewable energy supply, the process comprising:

• calculating a complementary score of each of the plurality of data centers based on information of time-series data of past renewable energy supply at the each of the plurality of data centers,
• determining the one or more second data centers as destination data centers for creation of remote copies to one or more volumes based on the complementary score;
• and
• executing creation of the remote copies to the one or more second data centers;
• and
• controlling migration of the workloads between the first data center and the one or more second data centers by swapping volume attributes between primary and secondary volumes in response to renewable energy supply at the first data center falling below a threshold to control use of renewable energy in executing workloads and reduce carbon emissions from the plurality of data centers.