HP XP Array Manager Software - Manual (Page 71)

Figure 25 Example of Disk Processor Usage Rates Displayed
.
The list displays the following items:
•
: When the green checkmark icon is displayed on the left of a disk processor, the graph il-
lustrates changes in usage rate for the disk processor.
• ID: This column displays ID numbers for disk processors.
• Usage:
• The Ave. (Total) column displays the average usage rate in the specified period.
• The Max. column displays the maximum usage rate in the specified period.
Viewing Usage Statistics about Data Recovery and Reconstruction Processors
(DRRs)
Performance Monitor monitors tracks data recovery and reconstruction processors (DRRs) and displays
statistics about the average and the maximum usage rate in a specified period. Performance Monitor
also displays a graph that illustrates changes in DRR usage within that period.
To view usage statistics about DRRs:
1. Ensure that the Auto LUN window is displayed.
2. In the tree, click the Physical tab.
3. In the list above the tree, select the storing period of statistics from longrange and shortrange for
display.
For details on the types of storing period of statistics, see “
Understanding Statistical Storage
Ranges ” on page 16.
When you view usage statistics about DRRs, the items displayed in the list by selecting longrange
and shortrange are the same.
4. In the tree, double-click the DKA folder.
5. Click DRR from below the DKA folder.
The list on the right displays usage statistics about DRRs. The displayed statistics are the average
and the maximum usage rates for the period specified in the From and To boxes.
NOTE:
If you change the date and time in the From and To boxes and then click Apply, Performance
Monitor recalculates usage rates and updates information in the list. To change the date and
time in From and To boxes, use the arrow buttons and the sliders (for details, see “
Auto LUN
Window, Physical Tab ” on page 31).
XP24000/XP20000 Performance Monitor User Guide 71