Foglight Resource Optimizer 6.3.0 - User Guide (for Hyper-V Environments)

The Potential Zombie VMs category identifies those VMs by analyzing CPU, memory, network, and disk throughput for consistent usage over an extended period. It allows you to reclaim them, if necessary.

By default, a VM is considered a zombie VM if all of the following conditions are met for every resource:

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The VM resource utilization over the evaluated period is less or equal than “Average resource utilization”.

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The VM resource standard deviation over the evaluated period is less or equal than “Average resource utilization” * “Deviation” / 100.

For a list of requirements necessary for Foglight Resource Optimizer to successfully power off the potential zombie VMs, see Enable optional privileges for resource optimization.

The Potential Zombie VMs view includes the following elements:

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Potential Zombie VMs optimization table

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Change History view

Table 11. Potential Zombie VMs optimization table
Description	This table includes the following information:
	Virtual Machine. Name assigned to the VM.
	CPU. CPU utilization.
	Memory. Memory amount that the zombie VM is wasting.
	Disk Throughput. Throughput speed of the zombie VM’s disk.
	Network. Network speed of the zombie VM.
	Recommendations. Recommends removing the potential zombie files.
Where to go next	N/A

The Search for a Virtual Machine box is located on the top left corner of the table. It allows you to search the environment for a specific virtual machine, by entering its name in the search box. The VMs matching the search criteria are displayed in the Virtual Machines table.

VM Configuration

The VM Configuration category allows you to search for VMs with duplicate UUIDs (Universally Unique Identifiers) and for VMs with duplicate VMIDs (bios IDs), and provides recommendations for remediation. For a list of requirements necessary for Foglight Resource Optimizer to successfully remove duplicate UUIDs, see Enable optional privileges for resource optimization.

The VM Configuration view includes the following elements:

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VM Configuration optimization table

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Change History view

Table 12. VM Configuration optimization table

Description

This table includes the following information:

Name. Configuration name.

Virtual Center. Virtual center name.

Creation Date. Date and time when the configuration was created.

Template. Set to Yes if it is a template; set to No if it is a VM.

Recommendation. Recommends changes to the configuration.

To remove a duplicate UUID or VMID:

Select the VM with the duplicate UUID or VMID from the list.

Click Fix Now.

In the Fix Confirmation dialog box, click Confirm to proceed with the operation.

The recommendation is applied and the VM Configuration optimization table is updated accordingly. The result of the UUID or VMID change is also shown in the Change History table at the bottom of the VM Configuration view.

NOTE: The operation fails if the user does not have the permissions listed in Enable optional privileges for resource optimization.

Where to go next

N/A

The Search for a Virtual Machine box is located on the top left corner of the table. It allows you to search the environment for a specific VM configuration, by entering its name in the search box. The configurations matching the search criteria are displayed in the VM Configuration optimization table.

Change History view

The Change History embedded view shows the changes that have been implemented in the environment (during the History Period [x] Day(s) defined in the Configuration tab), the object that was affected, and the result of the operation.

To view the change history of all Optimizer tabs, select the “show all Optimizer history” checkbox. When the checkbox is not selected, the view shows only the change history for the selected Optimizer tab.

Figure 5. Change History view