# Avoiding Duplication of VM Clients

## Procedure

You can take the following steps to reduce the occurrence of duplicate VM clients:

- Use the "Reuse existing VM client" option in the Restore screen to point the restored VM backups to the existing source VM client.

- (VMware only) Install VMware Tools on guest VMs to enable vCenter to provide a fully qualified domain name (FQDN) during VM discovery.

- When installing agents on guest VMs:

  - Specify the fully qualified domain name for the guest VM instead of a short name.

  - Use remote installation operation from the CommCell Console to install an agent on a discovered guest VM. For more information, see Installations Using the CommCell Console (Remote Installations).

- When restoring a VM out of place with a different UUID. The restored VM is backed up while the source VM is deleted. Verify that the following conditions are met for this scenario:

  - The source VM and restored VM belong to the same tenant company.
  - The source VM and restored VM host names match.
  - The source VM and restored VM are from the same vCenter.

- Preserve UUID while cloning or migrating VMs so that both the older and the new backups point to a single VM client.

## Related Topic

- Avoiding Duplication of VM Client (KB article 83439).

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