HP Capacity Advisor 7.2 User Guide

Figure 3 CPU utilization for managed system puny03v7
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Peak value.
Comparing these two graphs shows that workload peaks on the two systems do not occur
simultaneously, nor do they require the same percentage of the allocated CPU cores for processing.
This suggests an opportunity to consider whether you can consolidate both systems together to
satisfy the needs of the workloads, while reducing the number of CPU cores (originally each system
is allocated two cores, for a total of four cores available to do work).
Figure 4 shows the result of using a Capacity Advisor “what-if” scenario to combine the workloads
onto one system.
Figure 4 Combined “what-if” CPU utilization for puny03v8 and puny03v7
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Peak value.
From the graph, it is evident that the peak of the combined workloads is under two CPU cores.
Even with utilization limits in place, this system is unlikely to need four CPU cores to meet this
workload demand.
Sizing for service level objectives
As part of planning configuration changes, you can also consider your service level objectives or
quality of service goals.
The following utilization graph shows only one month of data; longer periods of data provide an
increasingly accurate picture of resource usage.
Sizing for service level objectives 21