When you have created a virtual machine with a guest operating system, you can clone that virtual machine to create a family of templates with that guest operating system. but each template having a different application installed.

You clone the virtual machine to have fresh copies of the virtual machine with the guest operating system that you installed. Later, you install different applications in each of the clones to fill out your template library.


If you are proceeding through the workflow as an exercise with the goal of one virtual machine at the end, you can skip this step.


Right-click the template and select Clone.


Give the new template a unique name and description and click Next.


Select the host or cluster and click Next.


Select a datastore for the template and click Next.


Specify in which format to store the template’s virtual disks.



Same format as source

Use the same format as the source virtual machine.

Thick Provision Lazy Zeroed

Create a virtual disk in a default thick format. Space required for the virtual disk is allocated during creation. Any data remaining on the physical device is not erased during creation, but is zeroed out on demand at a later time on first write from the virtual machine.

Thick Provision Eager Zeroed

Create a thick disk that supports clustering features such as Fault Tolerance. Space required for the virtual disk is allocated at creation time. In contrast to the flat format, the data remaining on the physical device is zeroed out during creation. It might take much longer to create disks in this format than to create other types of disks.

Thin Provision

Use the thin provisioned format. At first, a thin provisioned disk uses only as much datastore space as the disk initially needs. If the thin disk needs more space later, it can grow to the maximum capacity allocated to it.


Click Next.


Review the information for the template and click Finish.

You cannot use the new template until the cloning task completes.

vCenter Server adds the cloned template to the list in the Virtual Machines tab.

Repeat for as many templates you need for the library with the operating system you installed earlier.

Install an application so that you can convert a complete virtual machine to a template.