4. Resource Group Architecture : 4.3 Storage Resources : 4.3.5 Storage DRS : 4.3.5.2. Storage DRS Limitations
   
4.3.5.2. Storage DRS Limitations
*The creation, deletion, or modification of storage pods is not possible in vCloud Director. These tasks must be performed at the vSphere level.
*Member datastore operations are not permissible in vCloud Director.
Do not enable Storage DRS for datastore clusters used with vCloud Director if vSphere hosts are pre-vSphere 5.1. This is not a supported configuration.