Physical extents are realized on a physical media. This relationship is made explicit by the CIM_RealizesPExtent association. In addition, the starting address of the physical extent on the physical media is specified here.
'The starting address on the physical media where the physical extent begins. Ending address of the physicalextent is determined using the NumberOfBlocks and BlockSize properties of the CIM_PhysicalExtent object.'
'Physical extents are realized on a physical media. This relationship is made explicit by the CIM_RealizesPExtent association. In addition, the starting address of the physical extent on the physical media is specified here.'