Hi,
The Priority field is only available when the drive belongs to a drive pool and is selected for viewing, under the drive pool icon.
Drive properties displayed under the robotic libraries or stand-alone drives icon do not display the Priority field.
Please refer to:
Definition of terms within the various tabs of the Drive Properties dialog box
http://support.veritas.com/docs/244747
NOTE : If we do not receive your reply within two business days, this post would be marked assumed answered and would be moved to answered questions pool.