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

IMPORTANT:
• The response time is calculated from the time the IO/s are received by the CHA port till the time
they are dispatched from the CHA port.
• If the LDEV is a LUSE Master, the details of individual LDEVs are considered for the busiest resources
and not the sum of all the individual LDEVs.
• The Maximum Port IO is the maximum of the last collection interval. For example, if port I/O col-
lection interval is set to two minutes, the Maximum Port I/O will be calculated as the maximum
value over the two minute collection period.
Figure 14 10 busiest front end LDEVs
.
Figure 15 10 busiest front end Ports
.
Related Topics
See the following related topics:
• “Viewing performance summary for the XP array” on page 176
• “Viewing CHIP/CHA utilization” on page 180
• “Viewing ACP utilization” on page 181
• “Utilization Summary” on page 184
• “10 busiest LDEVs/RAID groups” on page 186
• “RAID Group summary” on page 188
• “Port summary” on page 190
• “Viewing LDEV data” on page 192
Viewing 10 busiest LDEVs and RAID groups
To view the 10 busiest LDEVs and RAID groups associated with an XP array's backend activities, click
BackEndIO in the Resource selection tree for the XP array. The top 10 busiest LDEVs are displayed
under the LDEV tab and the top 10 busiest RAID groups are displayed under the RAID GROUP tab.
Viewing XP arrays resources186