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Clone Existing Template
You can clone an existing virtual machine template.
Procedure
1
Start the vSphere client, and log in to the vCenter Server system.
2
From the Home page, click VMs and Templates.
3
Select the datacenter that contains the template.
The virtual machines and templates associated with the datacenter appear in the datacenter panel.
4
Right-click the template and select Clone.
The Clone Template wizard appears.
5
Give the new template a unique name and description, and click Next.
6
Select the host or cluster, and click Next.
7
Select a datastore for the template and click Next.
8
Specify in which format to store the template's virtual disks:
Option
Same as Source
Thin Provisioned
Thick
9
Click Next.
10 Review the information for your new virtual machine 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.
Edit a Template
You can edit templates. You might want to edit templates to upgrade or add applications, or change hardware.
You can edit your template (to upgrade an application, for example). You cannot edit templates as templates.
You must convert the template to a virtual machine, edit it, and convert the edited virtual machine to a template.
Procedure
1
Convert the template to a virtual machine.
2
Edit the virtual machine.
3
Convert the virtual machine to a template.
VMware, Inc.
Description
Use the format of the original virtual disk.
Use the thin format to save storage space. The thin virtual disk starts small
and at first, uses just as much storage space as it needs for its initial
operations. When the virtual disk requires more space, it can grow to its
maximum capacity and occupy the entire datastore space provisioned to it.
Only VMFS datastores version 3 and later support virtual disks in the thin
format.
Allocate a fixed amount of storage space to the virtual disk. The virtual disk
in thick format does not change its size and from the very beginning occupies
the entire datastore space provisioned to it.
Chapter 14 Working with Templates and Clones
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Troubleshooting
