Profile-Driven Storage, accessed from VM Storage Profiles on the Home page in vCenter, can help decrease the administration steps required to deploy a virtual machine and ensure it gets deployed to the correct datastore.
A bit more detail on VM Storage Profiles -
Storage Profiles allow you to assign information about your storage array, or characteristics, such as the RAID type and performance level. You can create profiles with any information that is meaningful to you and your environment.
There are two kinds of Storage Profiles, User Defined and Array Aware (VASA). If your storage vendor supports the latest vStorage API’s, it can provide the characteristics of the back end storage, such as RAID level and if the storage is replicated. If your array does not support these API’s you can create the User-Defined Storage Profiles with information about your array, or create tier levels such as gold, silver and bronze.
I recently implemented this for a deployment of Microsoft SQL server virtual machines that had higher I/O performing datastores created specifically for SQL.
-For detailed steps on Configuring VM Storage Profiles, you can view and download the document from the Presentations page.