4. Automated Import of Virtual Machines to vCloud Director : 4.2 Usage
4.2 Usage
Because these workflows can potentially be used on a very large number of virtual machines, it is recommended to perform import tests on small number of test virtual machines, to confirm that the import process is working as expected, and tune the parameters.
For example, moving the virtual machines can improve the process time dramatically if the virtual machines do not need to be migrated, but it mitigates recoverability. The optimum number of concurrent imports changes depending on the vSphere infrastructure.