DAT72 USB workstorage

[Atif Ullah Khan]

I am user server 2003 R2 on HP Prolient ML350 G5 Series with USB DAT72 workstorage drive. I have not been founding entry of DAT72 drive in device manager. My backup windows wizard also doesn't find it. I have not used it since purchase of this server. It's green and orange lights (both) are glowing, together. Please tell me how can I install it, should I install it's driver directly without thinking, it is not displaying in device manager or I can add it from add remove hardware manually?
Need for you help?
Thanks
Atif Ullah Khan