HP Capacity Advisor 7.2 User Guide

This time, vse02 looks like the best VM host candidate in this scenario, as long as additional CPU

are added to it to handle the additional processing load.

Adding processor cores

A look at the peak usage data shows that the usage of the CPU core allocation varies among the

five servers, but usage still appears to be within the bounds of a server having no more than eight

cores. However, Capacity Advisor will expect to calculate CPU processing overhead for running

each of the virtual machines. Eight cores may not be enough when CPU virtualization overhead

is accounted for, but for now add four cores to vse02 for a total of eight cores.

NOTE: You can refine this estimate further by changing utilization limits or by forecasting future

growth. Also, the longer the period of data analyzed, the better the analysis of resource utilization.

From the System tab, select the vse02 check box, and then What-If Action→Edit System....

Change the number of CPU cores from four to eight and click OK.

Other attributes such as memory size, processor speed, and bandwidth can be adjusted at the

same time on the Edit System screen. Thus, you can tweak the resource allocations on this screen

as you refine the fit through additional changes.