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Host based troubleshooting screen, Associating applications with hosts, Host – HP XP Performance Advisor Software User Manual

Page 325

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Host Based Troubleshooting Screen

You can view the performance data of the LDEVs and associated components for an application
on the Troubleshooting screen. This screen appears when you click Troubleshooting+Host Based
in the left pane.

“Host Based Troubleshooting Screen” (page 325)

displays the Troubleshooting

screen.

Tasks you can perform on the Troubleshooting screen

“Associating applications with hosts” (page 325)

“Removing association between application and hosts” (page 327)

“Viewing performance or usage data for components” (page 329)

“Searching for applications associated with components” (page 328)

“Plotting charts” (page 337)

Associating applications and viewing components performance data

The following are the high level steps that you must perform to troubleshoot the performance issues
of components associated with an application:
1.

Select

an XP or an XP7 disk array from the component selection tree under

Troubleshooting+Host Based in the left pane.

2.

Associate the application with the respective host that communicates with the disk array. You
can create the association using the host group or WWN of the host. For more information,
see

“Associating applications with hosts” (page 325)

.

3.

View the performance data of the disk array components.

If your application is using XP disk array components, view the performance data of LDEVs,
ports, CLPRs, RAID groups, and the usage data of CHAs and DKAs.

If your application is using P9500/XP7 disk array components, you can view the usage data
of the MP blades in addition to viewing the performance data of LDEVs, ports, CLPRs, and
RAID groups.

The data can be viewed at the application level and host group or WWN level. For more
information, see

“Viewing performance or usage data for components” (page 329)

.

4.

Plot graphs to analyze the performance or the usage of individual components that are
associated with the application. For more information, see

“Plotting charts” (page 337)

.

Associating applications with hosts

You can associate an application with a host using the host group or WWN of the host.

Prerequisites

Know the application for which you want to troubleshoot the associated LDEVs performance.

Know

the XP and the XP7 disk arrays that have LDEVs associated with your application.

Know the host where your application resides.

Know the WWNs for the hosts.

Run the XPInfo command at the command prompt of the host where your application resides.
The HBA Port WWN in the XPInfo output provides the WWN number. If your host does not
have XPInfo, download the executable from the Support screen in HP XP7 Performance Advisor
(click Support on the Dashboard screen) and install on the host.

Ensure

that the configuration data collection is complete and the performance data collection

is

in progress for the XP and the XP7 disk arrays.

Ensure that the following prerequisites are met before associating an application with the hosts:

Troubleshooting using host group or WWN 325