Scalable operation
In scalable operation, NAS is operated on all nodes. Then, the file lock is shared on all the nodes.
Standby operation
In standby operation, a cluster system consists of an operating node and standby nodes. Only on an operating node, NAS is active. On standby nodes, NAS is inactive. In the event of a failure, NAS is activated after userApplication is switched to one of the standby nodes, and the file lock of the operating node is released.