Identifying workload and sizing of buffers for the purpose of volume replication

A system comprising:

• a first storage system;
• a second storage system;
• and
• a management computer coupled to the first storage system and the second storage system, the management computer includes a memory connected to a controller, and the memory stores instructions that, when executed by the controller, causes the controller to:
• identify one or more virtual machines of a plurality of virtual machines to be protected in the first storage system;
• identify one or more logical volumes of a plurality of logical volumes in the first storage system, the one or more logical volumes used by the identified one or more virtual machines, based on first relationship information between the plurality of virtual machines and the plurality of logical volumes, the first relationship information being managed by the controller;
• calculate a workload to be used for the identified one or more logical volumes, based on information of workload monitored for each of the identified one or morelogical volumes, the information of workload monitored being managed by the controller;
• and
• calculate a size of a buffer area in the first storage system to be used for temporarily storing copy data to be sent from the first storage system to the second storage system in a remote copy procedure of one or more remote copy pairs, based on the calculated workload of the identified one or more logical volumes, each of the one or more remote copy pairs being formed by a logical volume of the identified one or more logical volumes in the first storage system as a primary logical volume and another logical volume in the second storage system as a secondary logical volume, so that the buffer area for the remote copy procedure of the identified one or more logical volumes having a size equal to or greater than the calculated size can be used to manage protection of the identified one or more virtual machines.

A non-transitory computer-readable storage medium storing a plurality of instructions for controlling a data processor to manage replication, the plurality of instructions comprising:

• instructions that cause the data processor to identify one or more virtual machines of a plurality of virtual machines to be protected in a first storage system;
• instructions that cause the data processor to identify one or more logical volumes of a plurality of logical volumes in the first storage system, the one or more logical volumes used by the identified one or more virtual machines, based on first relationship information between the plurality of virtual machines and the plurality of logical volumes, the first relationship information being managed by the controller;
• instructions that cause the data processor to calculate a workload to be used for the identified one or more logical volumes, based on information of workload monitored for each of the identified one or more logical volumes, the information of workload monitored being managed by the controller;
• and
• instructions that cause the data processor to calculate a size of a buffer area in the first storage system to be used for temporarily storing copy data to be sent from the first storage system to a second storage system in a remote copy procedure of one or more remote copy pairs, based on the calculated workload of the identified one or more logical volumes, each of the one or
• more remote copy pairs being formed by a logical volume of the identified one or more logical volumes in the first storage system as a primary logical
• volume and another logical volume in the second storage system as a secondary logical volume, so that the buffer area for the remote copy procedure of the identified one or more logical volumes having a size equal to or greater than the calculated size can be used to manage protection of the identified one or more virtual machines.