In the FuisonSphere OpenStack docking KVM scenario, which of the following descriptions of storage are correct? (Multiple choice)
A . The minimum granularity of the OceanStor V3 storage is the storage pool.
B . The minimum granularity of the FusionStorage is the storage pool. Each volume corresponds to a cloud disk.
C . cinder-volume role deployed on the compute node
D . cinder-volume role interacts with IPSAN controller through iSCSI protocol
Answer: ABC