Storage system and storage control apparatus

A storage control apparatus that belongs to a first storage apparatus, the storage control apparatus comprising:

• a first port used to transmit a command instructing an input or output of data at a second storage apparatus that differs to the first storage apparatus;
• and
• a processor that switches, based on a processing state of inputs and outputs via a first communication path that is currently being used to transmit the command to the second storage apparatus, a port to be used to transmit a next command to the second storage apparatus to a port belonging to a second communication path, out of a plurality of communication paths between the first port and a plurality of third ports that the second storage apparatus includes and between a second port that another storage control apparatus belonging to the first storage apparatus includes and the plurality of the third ports.

A non-transitory computer-readable storage medium storing a computer program that causes a computer to execute a process comprising:

• acquiring information indicating a plurality of communication paths between a first port, which is used to transmit a command instructing an input or output of data at a second storage apparatus that differs to a first storage apparatus to which the computer belongs, and a plurality of third ports that the second storage apparatus includes and between a second port that is included in another storage control apparatus belonging to the first storage apparatus and the plurality of third ports;
• and
• switching a port to be used to transmit a next command to the second storage apparatus to a port belonging to a second communication path out of the plurality of communication paths, based on a processing state of inputs and outputs via a first communication path that is currently being used to transmit the command to the second storage apparatus.