How i know my using TapDrive size

Hi
We have one compaq prolient 2500 server, with SCO 5.0.5 . Can anyone
help me to tell how i can find the size of my using SCSI tape drive either its 4/18 or 8/16 .
Rgds.

Usually the make and model of the tape drive will show in /usr/adm/messages. Using this information, you should be able to determine the specifications of the drive from the manufacturers web site.
If there is not enough information shown, then you may have to remove the tape drive and find the exact model/serial number information.
The information may also be on the original invoice.