The following can be used to vMotion a machine to an SDRS Datastore Cluster, inflating the disk to Lazy Zero at the same time (done by VcVirtualMachineRelocateTransformation.flat)

Create two input parameters. vMotionVM of type VC:VirtualMachine & a parameter name SDRSCL of type VC:StoragePod

The output parameter will be myVcTask of type VC:Task

var storageSpec = new VcStoragePlacementSpec();
var StorageResourceManager = vMotionVM.sdkConnection.storageResourceManager;
var myStoragePlacementResult = VcStoragePlacementResult();
var myKey = new Array();
var podSelectionSpec = new VcStorageDrsPodSelectionSpec();
var relocateSpec = new VcVirtualMachineRelocateSpec();
relocateSpec.transform = VcVirtualMachineRelocateTransformation.flat;

podSelectionSpec.storagePod = SDRSCL;

storageSpec.type = "relocate";
storageSpec.vm = vMotionVM;
storageSpec.podSelectionSpec = podSelectionSpec;
storageSpec.relocateSpec = relocateSpec

myStoragePlacementResult = StorageResourceManager.recommendDatastores(storageSpec);

myKey[0] = myStoragePlacementResult.recommendations[0].key
myVcTask = StorageResourceManager.applyStorageDrsRecommendation_Task(myKey);