Storage system

A communication control method executed by a storage system comprising a processor of a controller and including a front-end interface that communicates with a host via a network, the front-end interface being a smart NIC that performs block protocol processing, and management information that includes information indicating communication performance of the front-end interface with the host, the communication control method comprising:

• determining a communication control parameter including at least one of a connection upper limit number or a communication buffer size for in-capsule data in a session between the host and the front-end interface based on the communication performance;
• and
• reducing controller load or dynamic memory optimization algorithms by the smart NIC offloading protocol processing from the processor, wherein
• the communication control parameter includes a connection upper limit number in the session between the host and the front-end interface,
• the management information further includes information indicating a performance requirement of access from the host to the storage system,
• the controller determines the connection upper limit number based on a performance requirement of the host and performance of the front-end interface, and
• the controller sets the connection upper limit number to a value equal to or greater than a value obtained by dividing a number of ports of the front-end interface by a number of processor cores of the front-end interface.