HP XP20000 User Manual page 93

The list on the right displays the I/O rate.
To view the I/O rate for host bus adapters that do not belong to any XP Performance Control
group, select Not Grouped.
The list on the right displays the I/O rate.
Tips:
If you select the Subsystem folder in the tree, the list displays the I/O rate at each XP Perform-
ance Control group.
If you select a host bus adapter (
connected to the selected host bus adapter.
6. To display a graph to find out how the I/O rate has been changing, select one or more XP Per-
formance Control groups, WWNs, or ports in the list, and click Draw.
CAUTION:
If the graph does not display changes in the I/O rate (for example, if the line in the graph runs
vertically), it is recommended that you change the value in the Chart Y Axis Rate list. For example,
if the largest value in the list is 200 and the value in Chart Y Axis Rate is 100, you should select
a value larger than 200 from Chart Y Axis Rate.
NOTE:
If the WWN of a host bus adapter (HBA) is displayed in red in the tree, the host bus adapter is
connected to two or more ports, but the traffic between the HBA and some of the ports are not
monitored by Performance Monitor. When many-to-many connections are established between
HBAs and ports, you should make sure that all the traffic between HBAs and ports is monitored.
For details on the measures when a WWN is displayed in red, see the HP StorageWorks
XP24000/XP20000 Performance Control User Guide .
) in the tree, the list displays the I/O rate at each port
XP24000/XP20000 Performance Monitor User Guide 93