Demand

Document created by Michael Scott Expert on Oct 16, 2015Last modified by fran.schwarzmann on Aug 15, 2016
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Demand

Workload is the set of VMs in your environment, compared to the physical resources — the hosts and datastores. Demand settings have to do with adding or removing VMs within the scope of the plan.

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For projection plans, many of these settings include a choice of when to add or remove the specified VMs. You can choose to make the change:

  • NowAdd or remove the specified VMs as part of the first iteration of the projection.
  • MonthlyAdd or remove the specified VMs repeatedly, for every month in the projection.
  • Month/YearAdd or remove the VMs once for a specific month that falls within the projection time range.

For example, the following image shows a Month/Year setting to make the change on February of 2015:imageYou can change demand in the following ways:

  • Add VMs based on previous monthFor every month in the projection, the plan adds copies of the VMs that were added to your environment in the month previous to running the plan. In other words, the projection assumes you will add these VMs regularly each month.
  • Include Reserved VMsIf you have any reservations set up in the Deploy view, the plan will include these VMs. If the plan period is before the reservation deploy date, the plan handles the reservation as reserved VM resources. When the plan period reaches the deploy date, the plan treats the reserved workload as fully deployed VMs. For more information about reservations, see The Deploy View.
  • Copy VMsAdd copies of existing VMs to your plan. See Copy VMs.
  • Copy Using TemplatesAdd VMs to the plan, based on VM templates. See Copy VM Using Template.
  • Remove VMsSelect the VMs you want to remove from the plan. See Remove VMs.
  • Change Resource UtilizationSelect a group of VMs and increase or decrease their workload by a given percent. See Change Resource Utilization.

You can also create templates for add operations. For more information, see Creating Templates.

Copy VMs

Select a VM to serve as a model of what you want to add, then specify how many copies of that VM you want to add to the environment.

  1. Choose the Copy VMs action.
  2. Navigate the list of VMs to choose which one to copy.
  3. Specify the number of copies to add, then click Add.The list of items will include a folder called New Entities. You can expand that folder to see the items you have added.imageYou can repeat these steps — select another item to copy, specify the number of copies, then click Add. New additions will appear in the New Entities folder.
  4. When you have finished adding items to the plan’s workload, close the dialog box.

Copy VM Using Template

Select a template to serve as a model of what you want to add, then specify how many copies of that templated VM you want to add to the environment. You can also choose to create a new template or edit an existing template (see Creating Templates).image

  1. Choose the Copy VM Using Template action.
  2. Choose the template you want to use.Note that in the above example, the templates with IP addresses have been discovered on the indicated hypervisors. Templates without IP addresses in their names have been created within Operations Manager. You can use either type of template in a plan.
  3. Specify the number of copies to add, then click Add.
  4. When you have finished adding items to the plan’s workload, close the dialog box.

Remove VMs

Select the VMs you want to remove from your environment.

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  1. Choose the Remove VMs action.
  2. Navigate the list to choose which VMs you will remove. You can select individual VMs, or groups of VMs.
  3. Click Remove.
  4. When you have finished removing VMs, close the dialog box.

Change Resource Utilization

Use this to see what will happen if the VMs in your environment were to consume a different amount of resources. For example, you can set the scope of your plan to a production cluster, increase the load by 20%, and run a plan. This is the same as saying, “What would happen if all the VMs in my production cluster saw a 20% increase in their consumption of host memory and CPU cycles?”This option is for VMs, only. Select the VMs you want to modify, and raise or lower the resource utilization by percentage points.

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  1. Choose the Change Resource Utilization action.
  2. Navigate the list of VMs to choose which ones you will change. You can select individual VMs, or groups of VMs. Ctrl-click to select multiple items.
  3. Click Change Load.
  4. When you have finished changing VMs in the plan’s load, close the dialog box.Click Close to close the dialog box. Use this option if you want to make more changes to the plan, or if you want to save the plan before you run it.Click Close and Run to close the dialog box and run the plan immediately.

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