8456ch_ConfigGUI.fm Draft Document for Review December 5, 2019 4:33 pm 11.13 Performance monitoring You can monitor storage system performance to evaluate workload processing and response  times. To monitor performance, complete these steps: Figure 11-124 Performance Monitoring window 1. From the System window, select the  Monitoring  icon.  2. Click  Performance  to display graphs that track performance indicators. The performance  indicators include I/O operations per second (IOPS), latency, bandwidth, cache read hits,  and write delays.  3. The Performance window includes four preset graphs, which are listed in the  Favorites menu. These pre-configured graphs can be seen by clicking on the Favorites menu icon,  as shown in Figure 11-124. You also have the option to set any of these graphs as the  default.  4. You can create your own performance graphs for the storage system, pools, and fibre  channel ports. You can use predefined graphs and compare performance statistics for  multiple pools or fibre channel ports.  354  IBM DS8900F Architecture and Implementation