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Foglight Change Analyzer 7.1.0 - User Guide

Analyze Changes

The Analyze Changes view allows you to analyze what is changing performance-wise in a selected environment, during a selected timeframe.

Figure 4. Analyze Changes view

To analyze the impact of changes occurred in a selected virtual environment:
1
Click the Analyze Changes icon on the Change Analyzer tab > Menu bar.
The Analyze Changes view opens.
2
Select the timeframe for the analysis from the Time Range located at the top right corner of the VMware Environment dashboard.
3
On the Selectors bar, choose the objects to be included in the analysis by selecting the environment and objects from the drop-down lists, or by typing the name of an object in the Search box.
 
* 
NOTE: To modify the analysis settings, use the Setting menu on the Actions bar. For details, see Settings.
The system analyzes the data based on the selected settings. A progress bar appears indicating the status of the operation. When the operation completes, the upper table in the Quick view is updated to display the objects that have experienced an event that affects the performance of the environment, during the selected timeframe.
4
To analyze in more detail which objects in the environment are affected performance-wise by an event, select an object/event from the upper table in the Quick view.
The lower table in the Quick view is updated to display all objects whose performance is affected by the selected object/ event.

For additional information about this view, see Analyze Changes view.

VM Performance

The VM Performance view allows you to analyze the performance of a selected VM, during a selected timeframe.

Figure 5. VM Performance view

To analyze the performance of a virtual machine:
1
Click the VM Performance icon on the Change Analyzer tab > Menu bar.
The VM Performance view opens.
2
Select the timeframe for the analysis from the Time Range located at the top right corner of the VMware Environment dashboard.
3
On the Selectors bar:
a
Choose the objects to be included in the analysis by selecting the environment and objects from the drop-down lists.
b
Click Browse to open the Select a Virtual Machine dialog box.
c
Optional. Select the Powered-On VMs Only check box to display only the VMs that are powered on.
d
Select a virtual machine from the Object Name table or by typing its the name in the Search box.
e
Click Select to close the Select a Virtual Machine dialog box.
The Quick view is updated to display the performance of the selected VM during the selected timeframe. Alarms and events that affected the VM performance are also overlaid on the graph.
4
Analyze the VM performance in more detail, by reviewing the information in the Quick View graph. To change the display settings, click the Customizer icon at the top right corner of the graph. The standard chart customizer offers the following options: Use View Settings, Automatic, From Data, and Data vs Calibrated. See the “Time Plot Chart” topic in the Foglight online help for information about these options.
5
Analyze the events and alarms that affected the VM performance, by reviewing the information in the Quick View table.

For additional information about this view, see VM Performance view.

Impact Analysis

The Impact Analysis view allows you to define a sequence of changes and see what impact those changes have on your system’s performance. It also allows you to trigger the execution of these changes immediately or schedule these changes within Foglight, Foglight for Virtualization, Enterprise Edition, or Foglight Evolve. The Change History embedded view displays the history of changes implemented using the Impact Analysis functionality. For detailed information about how the performance impact is calculated, see Performance impact assessment.

Figure 6. Impact Analysis view

To review the impact of modeled changes on your environment:
1
Click the Impact Analysis icon on the Change Analyzer tab > Menu bar.
The Impact Analysis view opens.
2
On the Selectors bar, choose the objects to be included in the analysis by selecting the environment and objects from the drop-down lists.
The Quick view is updated to display the change models already created, that match the selection criteria.
3
On the Quick view upper table, choose the change models that you want to review by selecting their corresponding check boxes.
4
Analyze in more detail how the selected models affect your systems’ performance, by reviewing the information in the Quick view lower table.
To add a change model to your environment:
1
Click the Impact Analysis icon on the Change Analyzer tab > Menu bar.
The Impact Analysis view opens.
2
On the Toolbar, click Add Change .
The Model Change dialog box opens.
3
From the Change Type drop-down list select a type for the new change model.
The fields on the dialog box change depending on your selection.
4
If you selected Power Off a VM or Power On a VM in Step 3, define the following settings:
•
VM Name. Choose the VM that should be powered off/ powered on. Click Browse to open the Select the Virtual Machine dialog box. Select the VM from the Object Name’s table, or by typing its name in the Search box. Click Select to close the Select the Virtual Machine dialog box.
5
If you selected Move a VM in Step 3, define the following settings:
•
VM Name. Choose the VM that should be moved. Click Browse to open the Select the Virtual Machine dialog box. Select the VM from the Object Name’s table, or by typing its name in the Search box. Click Select to close the Select the Virtual Machine dialog box.
•
Destination. Choose the environment where the VM should be moved. Click Browse to open the Select the Destination dialog box. Select a virtual object from the Object Name’s table, or by typing its name in the Search box. Click Select to close the Select the Destination dialog box.
•
Storage. Choose the storage where the VM should be moved. Click Browse to open the Select the Storage dialog box. Select a virtual object from the Object Name’s table, or by typing its name in the Search box. Click Select to close the Select the Storage dialog box.
6
If you selected Change VM Configuration in Step 3, define the following settings:
•
VM to Configure. Choose the VM that should be configured. Click Browse to open the Select the Virtual Machine dialog box. Select the VM from the Object Name’s table, or by typing its name in the Search box. Click Select to close the Select the Virtual Machine dialog box. The Model a Change dialog box is updated to display the current CPU and memory configuration settings for the selected VM.
•
CPU Allocation. Change the number of vCPUs allocated to this VM by typing the new value in the Change To field.
•
CPU Reservation. Change the CPU reservation for the selected VM by typing the new value in the Change To field.
•
CPU Limit. Change the CPU limit for the selected VM by typing the new value in the Change To field. To use unlimited CPU resources, select the Unlimited check box.
•
Memory Allocation. Change the memory resources allocated to this VM by typing the new value in the Change To field.
•
Memory Reservation. Change the memory reservation for the selected VM by typing the new value in the Change To field.
•
Memory Limit. Change the memory limit for the selected VM by typing the new value in the Change To field. To use unlimited memory resources, select the Unlimited check box.
7
If you selected Change RP Configuration in Step 3, define the following settings:
•
RP to Configure. Choose the resource pool that should be configured. Click Browse to open the Select the Resource Pool dialog box. Select the RP from the Object Name’s table, or by typing its name in the Search box. Click Select to close the Select the Resource Pool dialog box. The Model a Change dialog box is updated to display the current CPU and memory configuration settings for the selected RP.
•
CPU Reservation. Change the CPU reservation for the selected RP by typing the new value in the Change To field.
•
CPU Limit. Change the CPU limit for the selected RP by typing the new value in the Change To field. To use unlimited CPU resources, select the Unlimited check box.
•
Memory Reservation. Change the memory reservation for the selected RP by typing the new value in the Change To field.
•
Memory Limit. Change the memory limit for the selected RP by typing the new value in the Change To field. To use unlimited memory resources, select the Unlimited check box.
8
If you selected Change HA Failure Configuration in Step 3, define the following settings:
•
Cluster to Configure. Choose the cluster that should be configured. Click Browse to open the Select the Cluster dialog box. Select the cluster from the Object Name’s table, or by typing its name in the Search box. Click Select to close the Select the Cluster dialog box.
•
Select a failover mechanism from the HA Failover drop-down list:
•
HA Failover Disabled. Use this option to disable the failover mechanism configured for the selected cluster.
•
Host Failures the Cluster Will Tolerate. Use this option to configure how may host failures the cluster can tolerate before its performance is affected. Specify the number of hosts in the Count field.
•
Percentage of Resources Reserved as Failover Capacity. Use this option to configure the resources reserved for the cluster in case of a failover. Specify the number of CPUs and the amount of memory reserved for failover, in the CPU(%) and Memory(%) fields, respectively.
•
Specify Failover Hosts. Use the arrows to move (from the Available Hosts table to the Failover Hosts table) the hosts that should be used as failover in case other hosts in the cluster fail.
9
If you selected Deploy a VM in Step 3, define the following settings:
•
VM Name. Type in this field the name of the VM that should be deployed.
•
VM Selection. Choose the size of the deploying VM from the options available in the drop-down list:
•
Default. Use this option to set the default VM size, with the following pre-configured parameters: CPU=2GHz, Memory=4GB, Storage=25GB, Throughput=1MB/s.
•
Existing VM. Use this option to set the VM parameters according to a specific existing VM. In this case, the parameters of the deploying VM (CPU, Memory, Storage, and Throughput) are equal the parameters of the selected VM.
•
New Custom Size. Use this option to set custom resource allocation (CPU, Memory, Storage, and Throughput) for the deploying VM.
•
Select VM. This option is available only when Existing VM is selected from the VM Selection drop-down. Click Browse to open the Select the Virtual Machine dialog box. Select the VM from the Object Name’s table, or by typing its name in the Search box. Click Select to close the Select the Virtual Machine dialog box. The Model a Change dialog box is updated to display the current CPU, memory, storage, and throughput configuration settings for the selected VM.
•
Container. Choose the container for the VM to be deployed. Click Browse to open the Select the Container dialog box. Select a virtual object from the Object Name’s table, or by typing its name in the Search box. Click Select to close the Select the Container dialog box.
•
Storage. Choose the storage for the VM to be deployed. Click Browse to open the Select the Storage dialog box. Select a virtual object from the Object Name’s table, or by typing its name in the Search box. Click Select to close the Select the Storage dialog box.
•
Template. Choose the template for the deployment. Click Browse to open the Select the Template dialog box. Select a virtual object from the Object Name’s table, or by typing its name in the Search box. Click Select to close the Select the Template dialog box.
•
Utilization. Define the values and units for each of the following configuration settings: CPU, Memory, Storage, and Throughput.
10
Click Save to create the change model and close the Model Change dialog box.
The newly created model is displayed in the Quick view.
To edit a change model:
1
Click the Impact Analysis icon on the Change Analyzer tab > Menu bar.
The Impact Analysis view opens.
2
On the Quick view, select the model you want to modify from the upper table.
3
On the Toolbar, click Edit Change .
The Model Change dialog box opens, displaying the current information for the selected model.
 
* 
NOTE: The change type cannot be modified.
4
If you selected a Power Off a VM or a Power On a VM change model, edit the following settings, as necessary:
•
VM Name. Choose the VM that should be powered off/ powered on. Click Browse to open the Select the Virtual Machine dialog box. Select the VM from the Object Name’s table, or by typing its name in the Search box. Click Select to close the Select the Virtual Machine dialog box.
5
If you selected a Move a VM change model, edit the following settings, as necessary:
•
VM Name. Choose the VM that should be moved. Click Browse to open the Select the Virtual Machine dialog box. Select the VM from the Object Name’s table, or by typing its name in the Search box. Click Select to close the Select the Virtual Machine dialog box.
•
Destination. Choose the environment where the VM should be moved. Click Browse to open the Select the Destination dialog box. Select a virtual object from the Object Name’s table, or by typing its name in the Search box. Click Select to close the Select the Destination dialog box.
•
Storage. Choose the storage where the VM should be moved. Click Browse to open the Select the Storage dialog box. Select a virtual object from the Object Name’s table, or by typing its name in the Search box. Click Select to close the Select the Storage dialog box.
6
If you selected a Change VM Configuration change model, edit the following settings, as necessary:
•
VM to Configure. Choose the VM that should be configured. Click Browse to open the Select the Virtual Machine dialog box. Select the VM from the Object Name’s table, or by typing its name in the Search box. Click Select to close the Select the Virtual Machine dialog box. The Model a Change dialog box is updated to display the current CPU and memory configuration settings for the selected VM.
•
CPU Allocation. Change the number of vCPUs allocated to this VM by typing the new value in the Change To field.
•
CPU Reservation. Change the CPU reservation for the selected VM by typing the new value in the Change To field.
•
CPU Limit. Change the CPU limit for the selected VM by typing the new value in the Change To field. To use unlimited CPU resources, select the Unlimited check box.
•
Memory Allocation. Change the memory resources allocated to this VM by typing the new value in the Change To field.
•
Memory Reservation. Change the memory reservation for the selected VM by typing the new value in the Change To field.
•
Memory Limit. Change the memory limit for the selected VM by typing the new value in the Change To field. To use unlimited memory resources, select the Unlimited check box.
7
If you selected a Change RP Configuration change model, edit the following settings, as necessary:
•
RP to Configure. Choose the resource pool that should be configured. Click Browse to open the Select the Resource Pool dialog box. Select the RP from the Object Name’s table, or by typing its name in the Search box. Click Select to close the Select the Resource Pool dialog box. The Model a Change dialog box is updated to display the current CPU and memory configuration settings for the selected RP.
•
CPU Reservation. Change the CPU reservation for the selected RP by typing the new value in the Change To field.
•
CPU Limit. Change the CPU limit for the selected RP by typing the new value in the Change To field. To use unlimited CPU resources, select the Unlimited check box.
•
Memory Reservation. Change the memory reservation for the selected RP by typing the new value in the Change To field.
•
Memory Limit. Change the memory limit for the selected RP by typing the new value in the Change To field. To use unlimited memory resources, select the Unlimited check box.
8
If you selected a Change HA Failure Configuration change model, edit the following settings, as necessary:
•
Cluster to Configure. Choose the cluster that should be configured. Click Browse to open the Select the Cluster dialog box. Select the cluster from the Object Name’s table, or by typing its name in the Search box. Click Select to close the Select the Cluster dialog box.
•
Select a failover mechanism from the HA Failover drop-down list:
•
HA Failover Disabled. Use this option to disable the failover mechanism configured for the selected cluster.
•
Host Failures the Cluster Will Tolerate. Use this option to configure how may host failures the cluster can tolerate before its performance is affected. Specify the number of hosts in the Count field.
•
Percentage of Resources Reserved as Failover Capacity. Use this option to configure the resources reserved for the cluster in case of a failover. Specify the number of CPUs and the amount of memory reserved for failover, in the CPU(%) and Memory(%) fields, respectively.
•
Specify Failover Hosts. Use the arrows to move (from the Available Hosts table to the Failover Hosts table) the hosts that should be used as failover in case other hosts in the cluster fail.
9
If you selected a Deploy a VM change model, edit the following settings, as necessary:
•
VM Name. Type in this field the name of the VM that should be deployed.
•
VM Selection. Choose the size of the deploying VM from the options available in the drop-down list:
•
Default. Use this option to set the default VM size, with the following pre-configured parameters: CPU=2GHz, Memory=4GB, Storage=25GB, Throughput=1MB/s.
•
Existing VM. Use this option to set the VM parameters according to a specific existing VM. In this case, the parameters of the deploying VM (CPU, Memory, Storage, and Throughput) are equal the parameters of the selected VM.
•
New Custom Size. Use this option to set custom resource allocation (CPU, Memory, Storage, and Throughput) for the deploying VM.
•
Select VM. This option is available only when Existing VM is selected from the VM Selection drop-down. Click Browse to open the Select the Virtual Machine dialog box. Select the VM from the Object Name’s table, or by typing its name in the Search box. Click Select to close the Select the Virtual Machine dialog box. The Model a Change dialog box is updated to display the current CPU, memory, storage, and throughput configuration settings for the selected VM.
•
Container. Choose the container for the VM to be deployed. Click Browse to open the Select the Container dialog box. Select a virtual object from the Object Name’s table, or by typing its name in the Search box. Click Select to close the Select the Container dialog box.
•
Storage. Choose the storage for the VM to be deployed. Click Browse to open the Select the Storage dialog box. Select a virtual object from the Object Name’s table, or by typing its name in the Search box. Click Select to close the Select the Storage dialog box.
•
Template. Choose the template for the deployment. Click Browse to open the Select the Template dialog box. Select a virtual object from the Object Name’s table, or by typing its name in the Search box. Click Select to close the Select the Template dialog box.
•
Utilization. Define the values and units for each of the following configuration settings: CPU, Memory, Storage, and Throughput.
10
Click Save to update the change model and close the Model Change dialog box.
The updated model is displayed in the Quick view.
To delete a change model:
1
Click the Impact Analysis icon on the Change Analyzer tab > Menu bar.
The Impact Analysis view opens.
2
On the Quick view, select the model you want to modify from the upper table.
3
On the Toolbar, click Delete Change .
The Delete Selected Modeled Changes dialog box opens.
4
Click Yes to confirm the operation.
The selected model is deleted from the Quick view.
To implement a modeled change:
1
Click the Impact Analysis icon on the Change Analyzer tab > Menu bar.
The Impact Analysis view opens.
2
On the Quick view upper table, select the modeled change you want to implement.
3
On the Toolbar, click Implement Change .
The Implement Change dialog box opens.
4
On the Implement tab:
•
Review the details of the modeled change and their impact on the system.
•
Choose whether the change should be applied immediately (select the Now option button) or later (select the Later option button and a Date and Time from the drop-down lists)
5
On the Notifications tab:
•
Type a name for the report that should be sent out when the change is implemented.
•
Select the email addresses for the users that should be notified when this change is implemented.
•
To add an email address to the list of available options, click the Add icon, type a valid email address in the available field, then click Add.
•
To delete an email address from the list of available options, select its check box, click the Delete icon. The address is deleted from the list immediately.
6
Click Save.
The selected change is triggered immediately or scheduled within Foglight, Foglight for Virtualization, Enterprise Edition, or Foglight Evolve. Changes already executed are displayed in the Impact Analysis—Change History view.

For additional information about this view, see Impact Analysis view.

VM Configuration Comparison

The VM Configuration Comparison view allows you to compare all VMs within a selected environment to a specific “gold standard” template or reference VM. If they differ, it displays a detailed list of all the configuration differences.

Figure 7. VM Configuration Comparison view

To compare a list of VMs with a “gold standard” template:
1
Click the VM Configuration Comparison icon on the Change Analyzer tab > Menu bar.
The VM Configuration Comparison view opens.
2
Select the timeframe for the analysis from the Time Range located at the top right corner of the VMware Environment dashboard.
3
On the Selectors tab, choose the objects to be included in the configuration comparison:
a
Select the VMs to be compared (from the Filter Object drop-down lists).
b
Select the “gold standard” template (from the Compare With drop-down list). Alternatively, click Browse to open the Select the Virtual Machine or Template dialog box, choose a virtual machine or a template from the list, and click Select.
 
* 
TIP: To clear the compared VMs list, click Clear in the Compare With drop-down list.
The Quick view is updated to display the list of VMs that match the selection. The upper table lists the VMs that deviate from the standard and the changes made for these VMs.
4
In the Quick view, select a VM from the upper table.
The lower table is updated to display detailed information about the changes that make up the differences reported in the upper table for the selected VM.

For additional information about this view, see VM Configuration Comparison view.

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