HP XP P9000 Performance Advisor Software v5.5 User Guide (T1789-96337, Februrary 2013)

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 323)
• “Associating applications with hosts” (page 324)
• “Viewing performance or usage data for components” (page 328)
• “Viewing variations in the LDEV response time” (page 334)
• “Searching for applications associated with components” (page 327)
• “Plotting charts” (page 336)
• “Example troubleshooting scenarios” (page 336)
Troubleshooting using real-time performance data from XP and P9000 disk
arrays
This chapter discusses troubleshooting issues for disk array components using the real-time charting
feature in HP XP P9000 Performance Advisor.
Introduction
HP XP P9000 Performance Advisor does real-time monitoring of the XP or the P9000 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 XP P9000
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 XP P9000
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,
316 Troubleshooting issues for components associated with applications