HP Capacity Advisor 7.2 User Guide

utilization assumptions for a workload” (page 186) for more information about the Copy Profile
fields.
5. If you are editing a workload that uses a static profile created for this scenario, or you want
to change the workload that it will use static information, modify those fields as appropriate.
See “Determining estimated utilization assumptions for a workload” (page 186) for more
information about the Static Profile fields.
6. Click OK to save changes.
The Workload tab of the Capacity Advisor: Edit Scenario screen opens.
To return to a planning checklist:
• Consolidating server loads onto a virtual machine manually (page 132)
• Determining where to put a workload using automated solution finding (page 148)
Moving a workload
Moving workloads allows you to redistribute workloads, including virtual equivalents of existing
systems, across physical servers. While moving workloads, you can compensate for differences
among systems by adjusting platform multiplier values. These values can be determined by running
applications on systems representing the hardware and software configurations being used.
Move considerations
In considering where to move a workload, think about the following aspects of a move:
• Architecture — is the workload moving from one architecture to a system with the same
architecture? If the workload may move to a system with a different architecture, what are the
implications of architectural differences?
• Operating system — is the workload moving from one operating system to a system with the
same OS? If the workload may move to a system with a different OS, what are the implications?
• CPU speed — is the workload moving to a system with the same or faster CPU speed?
• CPU utilization — what is the current CPU utilization of the workload? what is the projected
growth rate of the workload
• Available memory — is the available memory on the new system the same or greater than
that on the system where the workload currently resides?
TIP: To obtain the most meaningful feedback about the proposed move of workloads, it is
important to size the VM guest where the workload resides so that it is appropriate to the size of
the workload. This should be done prior to using the Move Workload menu option.
NOTE: When measuring CPU utilization of virtual machines, it is possible for the reported
utilization to be greater than the number of virtual CPU cores (vCPU cores) associated with the
virtual machine.
While the number of virtual machine host threads allocated to the process for the virtual machine
is restricted to the number of virtual CPU cores, the virtual machine host threads used to implement
virtual hardware, such as I/O cards, are not restricted. Under certain load conditions, this can
result in CPU utilization of more than 100% being reported for a virtual machine.
Procedure 34 To move a workload
1. If you are not on the Workload tab, click the Workload tab.
2. Click the check box preceding the workload(s) that you wish to move.
3. Select What-if Action→Move Workloads... from the menu bar.
The Edit Scenario: Move Workloads screen displays.
82 Procedures