Viewing Usage Statistics About Channel Processors (Chps); Example Of Channel Processors Usage Rates Displayed - HP XP20000 User Manual

Viewing Usage Statistics about Channel Processors (CHPs)

Performance Monitor monitors channel processors in each channel adapter 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 channel processor usage within that period.
To view usage statistics about channel processors:
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
Ranges" on page 16.
When you view usage statistics about channel processors, the items displayed in the list by se-
lecting longrange and shortrange are the same.
4. In the tree, do one of the following:
To view usage statistics about all the channel processors in your storage system, select the
Channel adapter (CHA) folder.
To view usage statistics about channel processors in a channel adapter, double-click the
Channel adapter (CHA) folder and then select the desired channel adapter.
The list on the right displays usage statistics about the channel processors. 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
Window, Physical
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 Draw.
NOTE:
The range of monitoring and the gathering interval affects the time period represented by a
graduation on the horizontal axis.
Figure 24 Example of Channel Processors Usage Rates Displayed
.
The list displays the following items:
Tab" on page 31).
XP24000/XP20000 Performance Monitor User Guide
"Understanding Statistical Storage
"Auto LUN
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