text: As shown in Figure A-4 on page 751, the Performance monitoring pane is divided into the 
  following sections that provide utilization views for the following resources: 
  
  (cid:2) CPU Utilization: The CPU utilization graph shows the current percentage of CPU usage 
  and peaks in utilization. It can also display compression CPU usage for systems with 
  compressed volumes. 
  
  (cid:2) Volumes: Shows four metrics on the overall volume utilization graphics: 
  
  – Read 
  – Write 
  – Read latency 
  – Write latency 
  
  (cid:2) Interfaces: The Interfaces graph displays data points for FC, iSCSI, serial-attached SCSI 
  (SAS), and IP Remote Copy interfaces. You can use this information to help determine 
  connectivity issues that might affect performance: 
  
  – Fibre Channel 
  – iSCSI 
  – SAS 
  – IP Remote Copy 
  
  (cid:2) MDisks: Also shows four metrics on the overall MDisks graphics: 
  
  – Read 
  – Write 
  – 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. 
  
  The system’s performance is also always visible in the bottom of the IBM Spectrum Virtualize 
  window, as shown in Figure A-4 on page 751. 