Hello, I have setup consisting of few nodes dedicated to virtualisation and shared storage application. For running virtual machines we are using KVM, and libvirt to manage them. Also, I am trying to setup some tools for managing storage volumes. I know about libvirt storage pools and existing storage volumes support, but what I would like to see in libvirt is generic storage driver (ideally it could depend on external application or script), or some framework for managing storage. Now we are testing NBD setup, and for some reasons I don't want to use kvm-nbd. We would like to use custom nbd client and manage block device creation/deletion for ourselves. Maybe in future we will use iSCSI instead of NBD, so platform/transport agnostic framework or driver would be very helpful. I've searched and read both mailing lists (libvir-list and libvirt-users), and have found that some libvirt users were asking for similar or same feature. E.g : https://www.redhat.com/archives/libvir-list/2009-August/msg00348.html So, the main question is: maybe there is some progress already done or someone is thinking about working on it ? -- Regards, Povilas