public static void UpdateDataDisk(this IServiceManagement proxy, string subscriptionId, string serviceName, string deploymentName, string roleName, int lun, DataVirtualHardDisk dataDisk)
 {
     proxy.EndUpdateDataDisk(proxy.BeginUpdateDataDisk(subscriptionId, serviceName, deploymentName, roleName, lun.ToString(), dataDisk, null, null));
 }
 public static void AddDataDisk(this IServiceManagement proxy, string subscriptionId, string serviceName, string deploymentName, string roleName, DataVirtualHardDisk dataDisk)
 {
     proxy.EndAddDataDisk(proxy.BeginAddDataDisk(subscriptionId, serviceName, deploymentName, roleName, dataDisk, null, null));
 }