HP XP7 PA Software User Guide

13 Troubleshooting issues for components associated with
applications
This chapter discusses troubleshooting issues for disk array components associated with applications
that reside on hosts, which communicate with the disk arrays. The troubleshooting is possible using
the real-time charting or using the host group or WWNs of the hosts.
• “Introduction” (page 324)
• “Associating applications with hosts” (page 325)
• “Viewing performance or usage data for components” (page 329)
• “Viewing variations in the LDEV response time” (page 336)
• “Searching for applications associated with components” (page 328)
• “Plotting charts” (page 337)
• “Example troubleshooting scenarios” (page 338)
Troubleshooting using real-time performance data from XP and XP7 disk
arrays
This chapter discusses troubleshooting issues for disk array components using the real-time charting
feature in HP XP7 Performance Advisor.
Introduction
HP XP7 Performance Advisor does real-time monitoring of the XP/XP7 disk arrays, where
performance data is collected for intervals as low as few seconds (approximately, five seconds
per component). The real-time data is collected through the following HP XP7 Performance Advisor
host agents that support the real-time performance data collection:
• Windows hosts
• Linux hosts
• Solaris hosts
• HP-UX hosts
• AIX hosts
• OpenVMS Integrity (IA-64) hosts
When you perform the host agent installation, the real-time server is also automatically installed
on the host agent. For more information on the host agent installation, refer to the HP XP7
Performance Advisor Software Installation Guide. You can collect the real-time performance data
for a set of five LDEVs, RAID groups, ports, cache, CHAs, and DKAs in an XP disk array. Similarly,
Troubleshooting using real-time performance data from XP and XP7 disk arrays 317