[Users] What's the correct way to upload a VM ISO image?

Hi, I am a little confused by the quick start guide. It lists a command to upload the ISO image: engine-iso-uploader upload -i local-iso-share [file1] [file2] .... [fileN] My questions are: 1. Do I have to copy the files (ISO images) from somewhere else to the engine machine before using this cmd? If image files are on a different server, what's the right syntax to upload them? 2. Is "local-iso-share" the name of the ISO domain? For example, should I use "ISO_DOMAIN" if I have the following: ISO Storage Domain Name   | Datacenter                | ISO Domain Status ISO_DOMAIN                | DC-CPA3                   | active 3. If I don't use engine-iso-uploader command, instead I prefer to uploading the image myself. What is the right directory for me to put my images in? Is it /var/lib/exports/iso on the machine running the ovirt engine?  Thanks. David