HP XP Performance Advisor Software - Manual (Page 43)

Figure 18 10 busiest backend LDEVs
Figure 19 10 busiest backend RAID groups
If the number of components are less than ten or if the utilization for them is zero, the tabs show less than
10 components. The 10 busiest LDEVs selected is based on the Backend Transfer metrics and the 10
busiest RAID groups selected is based on the Overall % RAID Group Utilization metrics. If an LDEV is
an Luse Master, the individual details of the LDEVs are considered for the busiest component and not
the sum of all its component LDEVs.
The LDEV response time components, AVERAGE READ RESPONSE, MAXIMUM READ RESPONSE,
AVERAGE WRITE RESPONSE, and MAXIMUM WRITE RESPONSE, are measured in milliseconds. Click
on any of the values to view the chart for that respective metric for that LDEV.
Click on an LDEV or RAIDGroup to view the metrics in a chart.
Cache usage chart
Double-click the Cache group box on the Array View screen to display the Cache usage chart for that
array in a separate browser window, as shown in Cache usage chart .
HP StorageWorks Performance Advisor XP Software user guide 43