Backup administrators are always looking for more performance. Even if your backup fits in to your backup window now, it might not in a years time when the company has grown. It's better to ensure your backups are as fast as possible before they become problematic.
When using Backup Exec to back up Veritas Cluster Server nodes, there are certain steps you need to take to ensure that your data is fully protected. Luckily Backup Exec has a feature to make this slightly easier.
Once you have your tape hardware working, there shouldn't be a need to update the firmware or tape drivers. However you will often see this listed as a step to try in troubleshooting procedures.