Hello stackers !

Instance creation from image needs a network transfert between glance and nova. If you use a cinder volume as a backend for your instance, the transfert is from glance to cinder.

If you use Ceph as a storage backend for glance and cinder, instance from volume, it's possible to use COW and so, no network transfert between glance and cinder.

I would like to do the same with VMware, storing glance images, nova instances and cinder volume on VMware Datastores. Mainly because transferts between glance and nova/cinder is very long ! I don't know why but I only get 50ko/s.

If you use snapshots, it's very boring to wait two times, transfert to glance and then from glance...

I don't find anything about that. Is anyone knows how VMware Integrated OpenStack handle that ?