A storage control system that makes it possible to integrate the setting of access between initiators and targets connected to a communication network and the setting of LUN security for the targets. The storage control system has: a host computer having one or more initiators; a storage controller having one or more targets and storage areas, and also having a security property-for defining access relationships between-the targets and the storage areas; and a server having a memory for storing correspondence relationships between the initiators and the targets, and a function for notifying the host computer and a storage controller of the correspondence relationships information. The host computer, the storage controller and the server are connected to each other via a communication network, and the storage controller sets, based on notification information from the server, the security property in such a manner that an initiator can access a specified storage area via a target, the initiator and the target having been notified of the notification information.