HP StorageWorks P9000 Performance Advisor Software v5.4 User Guide (T1789-96328, April 2012)

Figure 64 P9000 Continuous Access Journal group utilization
.
LDEV Activity report
You can view the maximum and least busiest LDEVs in an XP or a P9000 disk array through the LDEV
Activity report. The LDEV data can be for one of the following metric types:
• FontEndIO
• BackEndIO
• MB
• Utilization
• Read Response Time
• Write Response Time
The maximum and least busiest LDEVs are collated based on the maximum and minimum threshold
levels you specify, and also the metric type that you select. For the metric type and duration that you
specify, the average of the total performance of each LDEV is considered. Further, the average value
is verified with the set threshold levels to see if that particular LDEV's performance is above or below
the threshold limit. Based on their average values, the LDEVs are grouped in the top 100 busiest or
the least 100 busiest LDEVs, and displayed in the CSV file. It implies that only those LDEVs that are
above the maximum and below the minimum set threshold limits are considered.
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