I have a VM of approx. 18GB. Sometimes I need temporally clones of it, so I clone it. The problems are: * It takes a while until it's done. * Sometimes I happen to need dozen of clones and I'm running out of storage.

I wonder if there's a way to create a VM that saves only the delta (difference) since the delployment out of the source machine. That way each new VM's filesize should be 100MB at most, and creating it will be much faster.

I've heard that VMWare View is using this concept. Is such a thing possible for ESXi as well?

I'm using ESXi 4.1 with VSphere 4.1.

Thanks!