By deleting a host, you remove the host from the provisioning system. If you want to keep the host but not view it, see How to Hide a Host.
When you delete a host, the provisioning system will also delete the following objects.
All virtual hosts nested in the host.
All component instances that were installed on the host.
If the component instances installed on the host were created from a resource that was originally collected from the host, the component is updated to remove the reference to the host.
You might want to delete a host in the following situations.
You need to decommission a server that was registered with the provisioning system.
You no longer want a record of the host.