The real-time statistics are available from the IBM FlashSystem 9100 GUI. Click  Monitoring  (1) Performance (2)  (as shown in Figure 8-4) to open the Performance Monitoring window. As shown in Figure 8-5 on page 311, the Performance monitoring window is divided into the  following sections that provide utilization views for the following resources: You can use these metrics to help determine the overall performance health of the volumes  and MDisks on your system. Consistent unexpected results can indicate errors in  configuration, system faults, or connectivity issues. 310  IBM FlashSystem 9100 Architecture, Performance, and Implementation GLYPH<SM590000>  MDisks. Shows the following overall statistics for the MDisks: GLYPH<SM590000>  Interfaces. Shows the overall statistics for each of the available interfaces: GLYPH<SM590000>  Volumes. Shows the overall volume utilization with the following fields: GLYPH<SM590000>  CPU Utilization. Shows the overall CPU usage percentage. Figure 8-4 Selecting performance pane in the monitoring menu –R e a d –W r i t e – Read latency – Write latency – Fibre Channel – iSCSI – SAS – IP Remote Copy –R e a d –W r i t e – Write latency  – Read latency