I installed an IBM Ultrium TD3 drive on my Backup Exec 11b server. It is shown on the stand-alone drive list OK (product ID: IBM Ultrium TD3, Drive type : LTO-64K (64K, 10, 0, e, hu). The problem that I'm facing is that trying to use the LTO-3 media type (400gb) in the captioned drive, it only shows the available capacity of 35.5GB . I've run inventory several times, and it still shows the same capacity. I even tried to run my backup job,but every time it reach 32-33GB it become really slow. The tapes I'm using were previously used by another application on the same drive. After I run inventory on the tapes, I always run Quick erase. Any ideas what could be the problem?