The Plan View Glossary

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

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The Plan View runs simulations for what-if scenarios that explore possibilities such as:

  • Optimal workload distribution across existing resources
  • Changing hardware supply
  • Impact of downsizing, or removing resources
  • Optimal workload distribution to meet historical peaks demands
  • Projected infrastructure requirements
To run these scenarios, Operations Manager creates a snapshot copy of your real-time market. It then uses the Economic Scheduling Engine to perform analysis on that snapshot market. You can modify the snapshot market by changing the workload, adding or removing hardware resources, or eliminating constraints such as cluster boundaries or placement policies.
As it runs a planning scenario, Operations Manager repeatedly executes shopping cycles on the snapshot market until it arrives at the optimal conditions that market can achieve. When it reaches that point, the Economic Scheduling Engine cannot find better prices for any of the resources demanded by the workload — the scenario stops running, and it displays the results as the desired state. The display includes the resulting workload distribution across hosts and datastores, as well as the actions the scenario executed to achieve the desired result.
For example, assume you run a plan that adds virtual machines to a cluster. The plan runs repeated shopping cycles, where each entity in the supply chain shops for the resources it needs, always looking for a better price — looking for those resources from less-utilized suppliers. These shopping cycles continue until all the resources are provided at the best possible price.
The results might show that you can add more workload to your environment, even if you reduce compute resources by suspending physical machines. The recommended actions would then indicate which hosts you can take offline, and how to distribute your virtual machines among the remaining hosts.
To run plans, open the Plan View, start a new plan, then configure and run the plan. Plan setup includes the following:
ScopeLimit the physical devices that are included in the planning scenario—for example, limit to a given cluster. See Setting Plan Scope
ProjectionEnable Projection Planning, then specify the end date and the frequency for a projection plan. A projection plan reiterates its runs to calculate requirements into the future. For each time period you specify, a plan runs to add workload or perform the specified changes on top of the previously run results. This shows how your environment will change over time.
DemandSpecify workload parameters for the plan—add or remove VMs, to change load, or demand in your environment. See Specifying the Plan Workload.
SupplySpecify resource parameters for the plan—add or remove hosts or datastores, to change supply in your environment. See Specifying the Plan Workload.
BaselineSpecify baseline utilization statistics for the plan. The baseline types you can set are:
  • image Historical
  • image High-Demand
  • image Percentage Increase
For more information, see Set Baseline from History.
Advanced SettingsSpecify advanced parameters for utilization, VM Constraints, and Workload Placement. See Setting Advanced Options.
imageimageRun the plan. The plan can recognize existing constraints (clusters, network/storage constraints, and workload placement policies), or it can disable the constraints before running (Ignore constraints). While a plan is running, the Stop button appears. You can stop a running plan if necessary. See Running Plans

 

 

Planning Use Cases

     Planning Use Case: Decommission a Cluster or Datacenter

     Planning Use Case: Hardware Refresh

     Plan Scenario - Disaster Recovery Failover

 

Running Plans

     Running a Plan on the Current Environment

 

Plan Setup

     Setting Plan Scope

     Enabling Projection

     Specifying the Plan Resources

          Demand

          Supply

          Creating Templates

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