Disk recommendation question.

I have been using the following to provision new disks.  Would this spead disks across multiple luns by default?

myVcStoragePlacementResult = storageResourceManager.recommendDatastores(myVcStoragePlacementSpec);

myKey[0] = myVcStoragePlacementResult.recommendations[0].key

myVcTask = managedObject.applyStorageDrsRecommendation_Task(myKey);