5-8 Functions of NEC Storage ManagerNEC Storage PathManager – Path Management SoftwareThis software program allows you to set paths between servers and the diskarray, enabling path switching in case of failure. NEC Storage PathManager canbe used in standalone mode or in a cluster environment.Required software: NEC Storage ManagerReference manual: Section A of the “NEC Storage Optional SoftwareManual”NEC Storage PerformanceMonitor - PerformanceMonitoring SoftwareThis software program displays the performance information of disk arrays inreal time, monitors loads, and accumulates statistical information.n Displaying information in real timeDisplays the performance information (e.g., I/O density and averageresponse time) of disk arrays and logical disks at specified intervalsin real time.n Monitoring loadsSets a load threshold for disk arrays and logical disks, and outputs amessage to inform administrators that the set threshold is exceeded.n Accumulating statistical informationCollects performance information of disk arrays at specifiedintervals, and accumulates the information as performance logs in afile.Required software: NEC Storage ManagerReference manual: “Part I Performance Monitoring Function” ofSection B “NEC Storage Performance MonitorUser’s Manual” in the “NEC Storage OptionalSoftware Manual”