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Table Of Contents
- VMware vCenter Operations Manager Advanced Getting Started Guide
- Contents
- VMware vCenter Operations Manager Advanced Getting Started Guide
- vCenter Operations Manager Features
- Preparing to Monitor a vCenter Operations Manager Virtual Environment
- Object Type Icons in the Inventory Pane
- Badge Concepts for vCenter Operations Manager Planning
- Major Badges in vCenter Operations Manager
- Working with Metrics and Charts on the All Metrics Tab
- Planning the vCenter Operations Manager Workflow
- Monitoring Day-to-Day Activity in vCenter Operations Manager
- Identify an Overall Health Issue
- Determine the Timeframe and Nature of a Health Issue
- Determine Whether the Environment Operates as Expected
- Identify the Source of Performance Degradation
- Identify Events that Occurred when an Object Experienced Performance Degradation
- Identify the Top Resource Consumers
- Determine the Extent of a Performance Degradation
- Determine When an Object Might Run Out of Resources
- Determine the Cause of a Problem with a Specific Object
- Address a Problem with a Specific Virtual Machine
- Address a Problem with a Specific Datastore
- Identify Objects with Stressed Capacity
- Identify Stressed Objects with vCenter Operations Manager
- Identify the Underlying Memory Resource Problem for Clusters and Hosts
- Identify the Underlying Memory Resource Problem for a Virtual Machine
- Determine the Percentage of Used and Remaining Capacity to Assess Current Needs
- Preparing Proactive Workflows in vCenter Operations Manager
- Planning and Analyzing Data for Capacity Risk
- Identify Clusters with the Space for Virtual Machines
- Identify the Source of Performance Degradation Through Heat Maps
- Identify Datastores with Space for Virtual Machines
- Identify Datastores with Wasted Space
- Identify the Virtual Machines with Resource Waste Across Datastores
- 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
- Planning and Analyzing Data for Capacity Risk
- Planning vCenter Operations Manager Workflow with Alerts
- Customizing vCenter Operations Manager Configuration Settings
- Index
5 Use the buttons to add, remove, or restore hosts in the host list.
Actions are applied only to hosts that you selected using the check boxes in the hosts list.
6 Click host rows to change the physical resources and click Save.
You can use the text boxes and drop-down menus to modify the CPU capacity and the memory size of
the selected host.
Option Description
CPU Total
Number of CPU cores that a target single host will have, followed by the
target processor core speed.
Memory Total
Amount of memory that the target host profile will have.
7 Click Next.
8 Use the buttons to add, remove, or restore datastores in the datastores list.
Actions are applied only to datastores that you selected using the check boxes in the datastores list.
9 Click datastore rows to modify the disk size and click Save.
The Population Details pane to the right contains information about the actual datastore capacity, the disk
I/O use, and the number of hosts that link the datastore. The sharing status indicates whether different
hosts share the datastore.
10 Click Next.
11 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 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.
VMware vCenter Operations Manager Advanced Getting Started Guide
46 VMware, Inc.