The API manages all block devices in machine’s local /dev/ directory, i.e. also remote disks (iSCSI, FcoE, ...), as long as there is appropriate device in local /dev/.
Each block device is represented by instance of CIM_StorageExtent or its subclasss.
LMI_StorageExtent represents all devices, which do not have any specific CIM_StorageExtent subclass.
Each volume group is represented by LMI_VGStoragePool.
Instances of LMI_VGStoragePool, CIM_StorageExtent and its subclasses compose an oriented graph of devices on the system. Devices are connected with these associations or their subclasses:
Block devices cannot be directly manipulated using intrinsic or extrinsic methods of CIM_StorageExtent or LMI_VGStoragePool.
The only exception is DeleteInstance intrinsic method, which removes the block device. The device must be unused, which means it must not be mounted or used as base of other block devices.
Please appropriate ConfigurationService to create or modify devices or volume groups.