HP XP Array Manager Software - Manual (Page 56)

Note: If you change the date and time in the From and To boxes and then click the Apply button,
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 29).
5. To display a graph that illustrates changes in usage rate for channel processors, select the
desired channel processors in the list and then click the Draw button.
Note: The range of monitoring and the gathering interval affects the time period represented by
a graduation on the horizontal axis.
Figure 24 An Example of Channel Processors Usage Rates Displayed
The list displays the following items:
• : When the green checkmark icon is displayed on the left of a channel processor, the
graph illustrates changes in usage rate for the channel processor.
• ID: This column displays ID numbers for channel 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 Disk Processors (DKPs)
Performance Monitor monitors disk processors (DKPs) and lets you view the average and the maximum
usage rate in a specified period. Performance Monitor also displays a graph that illustrates changes in
disk processor usage within that period.
To view usage statistics about disk processors:
1. Ensure that the Auto LUN window is displayed.
2. In the tree, click the Physical tab.
3. In the drop-down 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 15.
When you view usage statistics about disk processors, 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 DKP from below the DKA folder.
The list on the right displays usage statistics about disk processors ( Figure 25 on page 57). 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 the Apply button,
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 29).
6. To display a graph that illustrates changes in usage rate for disk processors, select the desired
disk processors in the list and then click the Draw button.
Note: The range of monitoring and the gathering interval affects the time period represented by
a graduation on the horizontal axis.
56 Performance Monitor Operations