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# About the appliance

## Best practices for managing a VM appliance

Hewlett Packard Enterprise recommends the following guidelines for managing your VM appliance from the virtual console:

Best practices for managing a VMware vSphere virtual machine

Do | Do not
--- | ---
Use thick provisioning. Use shares and reservations to ensure adequate CPU performance. | Use thin provisioning. Update the VMware tools. If VMware Tools show Out of Date or Unmanaged, they are running correctly. These status messages are not a problem, because the tools are available and running. VMware tools are updated with each HPE OneView software update. Revert to a VM snapshot (unless under specific circumstances, as instructed by your authorized support representative). Set the Synchronize guest time with host option in the vSphere client when the HPE OneView appliance is configured to use NTP. HPE OneView automatically sets the appropriate Synchronize guest time with host setting during network configuration. When HPE OneView is configured to use NTP servers, the Synchronize guest time with host option is disabled. If HPE OneView is not configured to use NTP servers, it synchronizes to the host VM clock and the Synchronize guest time with host option is enabled. In this case, configure the VM host to use NTP. Reduce the amount of memory assigned to the VM.

Best practices for managing a Hyper-V virtual machine

Do | Do not
--- | ---
Use fixed size. | Update integration services. Revert to a VM checkpoint (unless under specific circumstances, as instructed by your authorized support representative). Reduce the amount of memory assigned to the VM.

See also

- Managing the appliance (top of chapter)

## How the appliance handles unsupported hardware

Unsupported hardware is any device that the appliance cannot manage. Unsupported devices are similar to unmanaged devices in that all unsupported devices are not managed by the appliance. The difference is that you can bring unmanaged devices under management of the appliance if you take the appropriate actions or properly configure them. Unsupported hardware can never be managed by the appliance.

The appliance detects the unsupported hardware and displays the model name and other basic information that it obtains from the device for inventory purposes. The appliance also accounts for the physical space unsupported devices occupy in enclosures and racks.

To account for the space a device occupies, the appliance represents unsupported hardware the same way it represents unmanaged devices.

The action available for unsupported hardware is Remove.

See also

- Managing the appliance (top of chapter)

- About interconnects

- About unmanaged and unsupported c7000 enclosures

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