Hi all, I find they, emc volumes, lvm, Netapp, IBM Svc and Zadara Virtual Private Storage Array, are all use ISCSI to be the bridge to make drivers to let Openstack support them. You can see their driver files here: https://github.com/openstack/cinder/tree/master/cinder/volume/drivers If i wanna discuss questions about their ISCSI driver ways, i should go to which mailing lists or ask anybody? it seems they are all not open source projects, which belong to companies. -- Thanks Harry Wei