HP StorageWorks XP Performance Advisor Software v4.6 User and Troubleshooting Guide (T1789-96094, June 2010)

2. Based on your requirement, select an application or choose the host or WWN associated with
an application:
• To select a host, click the + sign for an application and select the host from the list of hosts.
• To select a WWN, click the + sign for an application, host, and select the WWN from the
list of WWNs.
The Troubleshooting screen displays the associated LDEVs, ports, RAID groups (including pool
ID), and CLPRs performance data in the respective tables. If you have set the duration for which
XP Performance Advisor must analyze and show the variation in the average read or write
response of LDEVs, the following message appears on the Troubleshooting screen: XP
Performance Advisor is analyzing the Average Read/Write Response time
for the LDEVs. This may take some time. Please wait...
The time taken to analyze the average read and write response values for the LDEVs and display
the data on the Troubleshooting screen is directly proportional to the duration that you set. For
more information on setting the duration, see “Setting the duration to predict the LDEV response
time” on page 83.
• If your selection is at the application level, the performance data of LDEVs and associated
resources is collected from all the hosts and WWNs associated with the application, and
displayed on the Troubleshooting screen. Hence, the data displayed is a superset of the data
that you view at the host or WWN level.
• If your selection is at the host level, only the performance data available through the selected
host (inclusive of all the WWN for the host) is displayed on the Troubleshooting screen.
• If your selection is at the WWN level, only the performance data available through the selected
WWN is displayed on the Troubleshooting screen.
Figure 22 Troubleshooting screen
.
LDEV table1
Port table2
CLPR table3
RAID Group table4
Click an LDEV ID to view the associated port, CLPR, and RAID group records highlighted in the
respective tables. In the above figure, for the LDEV ID, 0:59, the corresponding records highlighted
are:
• CL1E and CL7E in the Port table
• CLPR 0 and CLPR 1 in the CLPR table
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