Machine Scale Set Unmanaged Data Disk. Update Definition Stages. With Disk Source<ParentT>.with New Vhd(int sizeInGB) 方法
specifies that unmanaged disk needs to be created with a new VHD of given size.
public WithNewVhdDiskSettings<ParentT> withNewVhd(int sizeInGB)
the initial disk size in GB
the next stage of unmanaged data disk definition