5.7
Table Of Contents
- VMware vCenter Operations Manager Getting Started Guide
- Contents
- VMware vCenter Operations Manager Getting Started Guide
- Introducing Key Features and Concepts
- Beginning to Monitor the Virtual Environment
- Object Type Icons in the Inventory Pane
- Badge Concepts for vCenter Operations Manager
- Major Badges in vCenter Operations Manager
- Working with Metrics and Charts on the All Metrics Tab
- Viewing Members and Relationships in the Monitored Environment
- Check the Performance of Your Virtual Environment
- Balancing the Resources in Your Virtual Environment
- Find an ESX Host that Has Resources for More Virtual Machines
- Find a Cluster that Has Resources Available for More Virtual Machines
- Ranking the Health, Risk, and Efficiency Scores
- View the Compliance Details
- View a List of Members
- Overview of Relationships
- Troubleshooting with vCenter Operations Manager
- Troubleshooting Overview
- Troubleshooting a Help Desk Problem
- Troubleshooting an Alert
- Finding Problems in the Virtual Environment
- Finding the Cause of the Problem
- Determine Whether the Environment Operates as Expected
- Identify the Source of Performance Degradation
- Identify the Underlying Memory Resource Problem for a Virtual Machine
- Identify the Underlying Memory Resource Problem for Clusters and Hosts
- Identify the Top Resource Consumers
- Identify Events that Occurred when an Object Experienced Performance Degradation
- Determine the Extent of a Performance Degradation
- Determine the Timeframe and Nature of a Health Issue
- Determine the Cause of a Problem with a Specific Object
- Fix the Cause of the Problem
- Assessing Risk and Efficiency in vCenter Operations Manager
- Analyzing Data for Capacity Risk
- Determine When an Object Might Run Out of Resources
- Identify Clusters with the Space for Virtual Machines
- Investigating Abnormal Host Health
- Identify Datastores with Space for Virtual Machines
- Identify Datastores with Wasted Space
- Address a Problem with a Specific Virtual Machine
- Identify the Virtual Machines with Resource Waste Across Datastores
- Address a Problem with a Specific Datastore
- Identify the Host and Datastore with the Highest Latency
- Optimizing Data for Capacity
- Determine How Efficiently You Use the Virtual Infrastructure
- Identify the Consolidation Ratio Trend for a Datacenter or Cluster
- Determine Reclaimable Resources from Underused Objects
- Assess Virtual Machine Capacity Use
- Assess Virtual Machine Optimization Data
- Identify Powered-Off Virtual Machines to Optimize Data
- Identify Idle Virtual Machines to Optimize Capacity
- Identify Oversized Virtual Machines to Optimize Data
- Determine the Trend of Waste for a Virtual Machine
- Forecasting Data for Capacity Risk
- Create Capacity Scenarios for Virtual Machines With New Profiles
- Create Capacity Scenarios for Virtual Machines With Existing Profiles
- Create a Hardware Change Scenario
- Create a What-If Scenario to Remove Virtual Machines
- Combine the Results of What-If Scenarios
- Compare the Results of What-If Scenarios
- Delete a Scenario from the What-If Scenarios List
- Analyzing Data for Capacity Risk
- Working with Faults and Alerts
- Working with Groups
- Set How Data Appears in vCenter Operations Manager
- Create a New Policy
- Set the General Parameters of a Policy
- Associate a Policy with One or More Groups
- Customize Badge Thresholds for Infrastructure Objects
- Customize Badge Thresholds for Virtual Machine Objects
- Customize the Badge Thresholds for Groups
- Modify Capacity and Time Remaining Settings
- Modify Usable Capacity Settings
- Modify Usage Calculation Settings
- Modify the Criteria for Powered-Off and Idle Virtual Machine State
- Modify the Criteria for Oversized and Undersized Virtual Machines
- Modify the Criteria for Underused and Stressed Capacity
- Select Which Badges Generate Alerts
- Modify Trend and Forecast Analysis Settings
- Modify an Existing Policy
- Modify Summary, Views, and Reports Settings
- Create a New Policy
- Monitor the Performance of vCenter Operations Manager
- Index
vCenter Operations Manager applies the scenario to the view that you selected. The scenario forecast appears
in the chart as a gray dotted line. You can compare the actual current capacity to the expected capacity if you
apply the changes you specified in the hardware change scenario.
What to do next
If you have more than one scenario, you can combine or compare the scenario outcomes. You can export the
scenario results to an Adobe PDF or CSV file to save the information.
Create a What-If Scenario to Remove Virtual Machines
You can create a scenario that simulates removing a virtual machine or group of virtual machines from a host
or a cluster.
Prerequisites
In vCenter Operations Manager, verify that the Summary tab under the Planning tab is open.
Procedure
1 Select the target object in the inventory panel.
The target object identifies the host or the cluster from which the virtual machines are removed if you
implement your scenario.
2 Click the New what-if scenario link.
3 Select a view for the scenario and click Next.
This step is not available if you opened the What-if Scenario wizard from the Views tab.
4 On the Change Type page, select Virtual machines and click Next.
5 Select Remove virtual machines and click Next.
6 On the Configuration page, select the virtual machines to remove from the selected host or cluster and
click Next.
7 On the Ready to Complete page, check the parameters of your what-if scenario and click Finish to view
the outcomes.
vCenter Operations Manager applies the scenario to the view that you selected. The forecasted capacity appears
in the chart as a gray dotted line. You can compare the current capacity to the expected capacity if you remove
the virtual machines from the target object.
What to do next
If you have more than one scenario, you can combine or compare the scenario outcomes. You can export the
scenario results to an Adobe PDF or CSV file to save the information.
Combine the Results of What-If Scenarios
You can combine the results of all what-if scenarios to assess their cumulate effect on your environment.
The list of scenarios that you created appears in the What-If Scenarios pane under the Legend pane.
Prerequisites
In vCenter Operations Manager, verify that the Views tab under the Planning tab is open.
Verify that you have created at least two what-if scenarios.
VMware vCenter Operations Manager Getting Started Guide
60 VMware, Inc.