Hi!
Backup Exec is version 2010 R3 with all updated applied.
This is a small environment, just one Dell server with the external tape drive connected directly to it using a Dell SAS 5/E Adaptes. The backup exec and the tape drive is installed and configured in the Windows 2k8 R2 virtual host, I'm not using it for Linux saves.
Yesterday I updated the firmware of the tape drive, Changed to the last official dell drivers for the tape drive instead the Symantec drivers and configured the Dell SAS 5/E adapter using the vmware passthrough option and changed the block size to 128kb.
Last copy was done ok and faster than usually, will see the next days how it goes