Good day, I'm Luis Gonzalez, member of the DSA Research Group (dsa-research.org) at Universidad Complutense in Madrid which is developing the Open Nebula Virtual Infrastructure Engine (former Gridhypervisor). Currently we are part of the Reservoir European project, which is related to Virtualization and Grid, and so we have been following closely the use case draft and proposed API published on the gridforge project of this WG and other important standards like DMTF's proposals. In particular, we are working on the implementation of a VM manager (OpenNebula based) on top of a physical infrastructure (like clusters) that will manage the full life cycle of the VM from definition to execution and destruction, including things like scheduling of VMs according to some rules or policies based on host statistics (load-balancing, idle time...) and also provide capabilities like snapshotting, migration, live migration, deployment, etc. and creation of VM with their corresponding disk images in an image repository. One of our goals in the context of the RESERVOIR project is to define an open specification of an API for the management of VMs, so being the OpeNebula API an open-source reference implementation. We are wondering if the API proposed in the WG draft has a similar aim. Regards, -- Luis Gonzalez Abundes, Grid Technology Engineer/Researcher: DSA Research Group: http://dsa-research.org Globus GridWay Metascheduler: http://www.GridWay.org OpenNebula Virtual Infrastructure Engine: http://www.OpenNebula.org