System configuration figures are shown below:
Scalable operation
In scalable operation, the volumes of a NAS device can be mounted from any node. Also, the shared disk can be used from every node.
Standby operation (cold-standby)
In standby operation, a cluster system consists of an operational node and standby nodes. With a NAS device, however, a connection is established only on the operational node and that is inactive on the standby node. In the event of a failure, production operation is switched to one of the standby nodes, after which a connection to the standby node is established after the operational node lock on the NAS device is released.
Information
Hot-standby is not supported.