HP Matrix Operating Environment Software - Manual (Page 103)

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 30 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.
4. Change the Meter Style, if desired.
5. Change the Data Range if a different size of data collection is desired, and click OK to refresh
the table display.
TIP: A longer data collection period provides a better picture of activity on the system over
time than shorter periods do.
6. Change the Meters Represent setting if a different calculation is desired .
7. The first table presents the workloads selected for the move.
8. If the original system that the workload resided on differs significantly from the intended
destination system on which you intend to run the workload, use the memory platform multiplier
to adjust for differences between the two systems. On entering a new value for the memory
platform multiplier, you must click Refresh to update the table titled Select Destination System:
with the new values.
9. Optional. Change the headroom calculation. You must click Refresh to update the server
destination table with the new values.
10. In the next table, labeled Select Destination System, take a few moments to mouse over various
entries in the table and analyze the information presented. This table lists the possible
destination systems available in this scenario, their current resource utilization information,
and their headroom rating.
11. Select a system to be the new host for the workload. The OK button becomes enabled for use.
Server presentation:
The table entries are ordered by headroom fitness as determined by Capacity Advisor, and
Capacity Advisor selects the top selection by default. Examine the headroom rating and the
utilization meters for each prospective host to determine which host best fits your goals for
headroom fitness and optimal utilization.
Not seeing a host that you expect to be in the destination list?:
Capacity Advisor allows only one workload to be assigned to a VM host in a scenario.
Therefore, VM hosts that already have a workload do not appear as destination candidates
in this screen.
Working with workloads 103