Thanks Dear Fabian for quickly response
I did that but still media pool is grayed out , Tape library connected through network connection and I can access by IP
Your welcome.
Seems the tape server has no tape hardware installed.
Make sure that the connection to the tape device is correctly configured in the iSCSI Initiator, tape drivers are installed and if it’s recognized in the device manager on your windows machine. You can do a rescan of the tape server after all that is done.
If tapes are still not visible, please open a support case with Veeam to check if something is wrong.