The self-service feature is the possibility for users to create new VMs. That's different from delegating existing resources to them, and it leads to a lot of side-effects.
To allow people creating VMs as they want, we need to give them a *part* of your XenServer resources (disk space, CPUs, RAM). You can call this "general quotas" if you like. But you need first to decide how those quota applies in your infrastructure:
Self-service is a major step in the Cloud. Combine it with our [Cloudinit compatible VM creation](cloudinit.md) for a full experience:
* create a Cloud ready template
* create a set and put Cloud templates inside
* delegate this set to a group of users
Now, your authorized users can create VMs with their SSH keys, grow template disks if needed. Everything inside a "sandbox" (the set) you defined earlier!
