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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. 

<img src='content_image/983896.jpg'>

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: 

GLYPH<SM590000>  CPU Utilization. Shows the overall CPU usage percentage. 

GLYPH<SM590000>  Volumes. Shows the overall volume utilization with the following fields: 

–R e a d 

–W r i t e 

– Read latency 

– Write latency 

GLYPH<SM590000>  Interfaces. Shows the overall statistics for each of the available interfaces: 

– Fibre Channel 

– iSCSI 

– SAS 

– IP Remote Copy 

GLYPH<SM590000>  MDisks. Shows the following overall statistics for the MDisks: 

–R e a d 

–W r i t e 

– Read latency 

– Write latency 

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. 

