Backup Exec 2010 R2 cannot work with Tape Drives
We have Quantum Scalar i500 Tape Library with two IBM Ultrium LTO4 Tape Drive. With Backup Exed 2010 everything was working well. but when upgraded to Backup Exec 2010 R2, It seems cannot works with Tape Drives. In Devices view the IBM Tape Drive flashes sometimes and show its busy for a little while repeatedly, but in fact it's not busy. In Home view, Device Summary shows some unbelevable number of Library Drive In Use such as 24 and it changes repeatedly!
When I want to Inventory the Library or run a Backup Job, the job started to run and status stay in running forever and Tape drive flashes for a while as busy repeatedly.
For testing purpose, I've Installed a fresh copy of Backup Exec 2010 R2 and the result was the same.
I have another Backup Exec 12.5 installation which is working with that Tape Library and Drives as well.
The Guest OS is Windows 2008 R2 Enterprise x64. I installed Symentec Drivers for Tape Drives with Quantum Driver for Tape Library.
Is it about the driver problem? If so, how can i solve that?