Determining if you're running on Storage Emulator or Windows Azure Storage Account

DeterminingStorageLocation

public ActionResult Index()
{
     const string welcomeNote = "Welcome to ASP.NET MVC {0}!";

     var account = CloudStorageAccount.Parse(
                      RoleEnvironment.
                          GetConfigurationSettingValue("DataConnectionString"));

     ViewBag.Message = (account.BlobEndpoint.IsLoopback) ?
		          string.Format(welcomeNote, " on Local") :
                          string.Format(welcomeNote, " in the Cloud";

     return View();
}