Thanks to both of you for your responses. I am going to read some of the vSphere Storage that David recommended as well as Getting Started with vSphere CLI.
I'm not clear - are you saying that this is a hack and backups should NOT be managed with either vSphere Client or Remote CLI, even in a simplified environment?
I have just started with VMware Essentials - should I not even pursue this and just install vCenter Appliance or additional backup software, such as Veeam Free, to do the backups to the Buffalo device?
Thanks again.