Deallocate the partition associated with the specified logical media or partition. RSM DEALLOCATE /L[G|F | /P[G|F The /[L|P]G ...

Deallocate the partition associated with the specified logical media or partition.  RSM DEALLOCATE   /L[G|F] | /P[G|F]  The /[L|P]G option should be used when the LogicalMediaID, or  PartitionID is supplied as a GUID. The /[L|P]F option should be used when the LogicalMediaID, or  PartitionID is supplied as a friendly name.