[CentOS] Using USB Tape drive on Centos 5.3 (kernel 2.6.18-164.10.1.el5PAE)

Tue Mar 2 16:51:08 UTC 2010
John Doe <jdmls at yahoo.com>

From: "Muro, Sam" <research at businesstz.com>
> I have been trying to install HP Storageworks DAT72 on CentOS 5 in vain.
> On system reboot, neither /dev/st not /dev/sg is available. May you please
> lead me through as this is my first time trying to do it

What does lsusb show?
Just a thought; did you check in the BIOS if there are USB options (legacy and such)?
Maybe install 'HP StorageWorks LTT' (Library and Tape Tools); it might help testing...

JD