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Overview of Working with Workloads | |
Workloads represent applications running on systems. The following
tasks are described:
Creating a Workload | |
When you are modeling future configurations, you can create new
workloads to represent applications that will be added. The workload can
be based on either a static baseline or profile data from an existing
workload. Prerequisites. To create a workload in a scenario:
Procedure 4-26 To Create a Workload You can create workloads from the System or
Workload tab. If you want to preselect the system to run the workload: If you are not on the System tab, click
the System tab. The System tab will open, listing the systems
in the scenario. Click the check box preceding the system you want to run the
workload. A check mark will fill the check box and the line
containing the system will be highlighted.
Select What-If Action Create Workload... from the menu-bar. The Edit Scenario - Create Workload screen
will be displayed. If you have not preselected the system to run the workload, select
a System. | | | |  | NOTE: You can move the workload later. | | | | |
Fill in the Workload name. The name must be
unique on the specified system. The only characters allowed are upper
and lower case alpha, numeric, and the dash and period. The first
character must be an alpha character. | | | |  | TIP: It is a good idea to make the names of workloads unique across
the scenario to allow them to be moved among systems. | | | | |
Add a detailed description of the workload in the
Workload Description field. Complete the definition of the workload using the controls under
Estimated Baseline. Click the
? for the screen for details on the
controls. If you have more workloads to create, click the
Apply button and repeat the preceding 4
steps, otherwise, proceed to the following
step. Click the OK button. The Workload tab of the Capacity
Advisor - Edit Scenario screen will open.
What Now? Once you have created a workload, you might want to:
Editing a Workload | |
When constructing a scenario, it is frequently necessary to modify the
characteristics of a workload to reflect future changes in application or
in the users of the application. There are two types of workloads, those
that reflect current workloads on the system and those that are created in
for a scenario. While both can be edited, the characteristics that can be
edited are different for each. If you are editing a workload created for a
scenario, you can change the basis from static to workload based and
vice-versa. Prerequisites. To edit a workload in a scenario:
Procedure 4-27 To Edit a Workload If you are not on the Workload tab, click the
Workload tab. The Workload tab will open, listing the
workloads in the scenario. Click the check box preceding the name of the workload you wish to
edit. A check mark will appear in the check box and the row containing
the workload will be highlighted to indicate selection. Select What-If ActionEdit Workload... from the menu-bar. The Edit Scenario - Edit Workload screen will
be displayed in a new window. If you are editing a workload representing a current workload,
modify the Offset Hours, CPU workload
multiplier and Memory workload
multiplier as appropriate. For details on the meaning of
the controls, access help on the screen by clicking the
? button. If you are editing a workload created for this scenario, modify
the Estimated Baseline parameters as appropriate.
For details on the meaning of the controls, access help on the screen
by clicking the ? button. Click the OK button. The Workload tab of the Capacity
Advisor - Edit Scenario screen will open.
What Now? Once you have edited a workload, you might want to:
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. Prerequisites. To move a workload in a scenario:
Procedure 4-28 To Move a Workload If you are not on the Workload tab, click the
Workload tab. The Workload tab will open, listing the
workloads in the scenario. Click in the check box preceding the workload you wish to move. A check mark will appear in the check box and the row containing
the workload will be highlighted. Select What-if ActionMove Workload... from the menu-bar. The Edit Scenario - Move Workload screen will
be displayed, with a list of all the systems available to host the
workload. | | | | | NOTE: Bar-graphs representing the change in CPU
Utilization and Memory Utilization
that will occur if the workload is moved to each of the VM Hosts
provide a quick estimate of how the workload will “fit”
on each of the host systems. | | | | |
If the system the workload data was collected on has significant
differences from the system on which you intend to run the workload,
you can use the CPU Platform Multiplier and
Memory Platform Multiplier to adjust for
differences between the characteristics of the two systems. To do so: Modify the values of the CPU Platform
Multiplier and/or Memory Platform
Multiplier as appropriate. For details on the meaning
of the controls, access help on the screen by clicking the
? button. Click the Refresh
button to update the CPU Utilization and
Memory Utilization bar-graphs. The screen will gray out while the calculations are being
performed.
Click in the circle preceding the name of the system that will be
the new host for the workload. The circle will be filled in and the row containing the system
will be highlighted to indicate the selection. Click the OK button. The Workload tab of the Capacity
Advisor - Edit Scenario screen will open.
What Now? Once you have moved a workload, you might want to:
Parking a Workload | |
When constructing a scenario, it can be desirable to temporarily
remove the effects of workloads to reflect potential changes, without
permanently removing the workloads. This is referred to as
“parking” the workloads. Prerequisites. To park workloads in a scenario:
Procedure 4-29 To Park Workloads If you are not on the Workload tab, click the
Workload tab. The Workload tab will open, listing the
workloads in the scenario. Click the check boxes preceding the names of the workloads you
wish to park. Check marks will appear in the check boxes and the rows containing
the workloads will be highlighted, to indicate selection. Select What-If ActionPark Workloads... from the menu-bar. The Edit Scenario - Park Workloads screen will
be displayed. Confirm that the workloads listed under Workload
Name hosted on the systems listed under Contained
In are the workloads you wish to park. Click the OK button. The Workload tab of the Capacity
Advisor - Edit Scenario screen will open.
What Now? Once you have parked a workload, you might want to:
Removing a Workload | |
When working with a scenario, it is sometimes desirable to remove
workloads to reflect potential changes. Prerequisites. To delete workloads from a scenario:
Procedure 4-30 To Delete Workloads If you are not on the Workload tab, click the
Workload tab. The Workload tab will open, listing the
workloads in the scenario. Click the check boxes preceding the names of the workloads you
wish to remove. Check marks will appear in the check boxes and the rows containing
the workloads will be highlighted to indicate selection. Select What-If ActionDelete Workloads... from the menu-bar. The Edit Scenario - Delete Workloads screen
will be displayed. Confirm that the workloads listed under Workload
Name hosted on the systems listed under Contained
In are the workloads you wish to delete. Click the OK button. The Workload tab of the Capacity
Advisor - Edit Scenario screen will open.
What Now? Once you have removed a workload, you might want to:
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