[Users] Storage configuration

Hello list, Again I'm having truble with simple things. I don't know how to properly setup the Storage. Mainly I don't know how to define a location for the iso files to be used at installation time. Also, I want to ask if ovirt has the concept of virtual machine images: already installed OSs that can be fired up and used by any node without installation. I think only the MAC address should be updated for that. Best regards, Cristian Falcas