One of my client have a Windows server 2003 SBS with Quantum DAT 72 backup drive. The backup was configured with SBS backup utility. Few months before the tape drive was failed (hardware fault) and Quentum send a replacement drive.
I installed the new replacement drive and it was listed under device manager list. Also driver properties says This device is working properly. Also driver tab shows it is listed in Microsoft Windows Hardware Compatibility list.
But when I tried to reconfigure the SBS backup it gives me the option to reconfigure the existing backup settings (during the device replacement period I was configure backing up to different hard disk) and after go through the wizard at the end when press the Finish button the configuration progress bars go to half way and passes an error message An Unexpected error occurred (8004D002). The transaction failed to commit for an unknown reason. The transaction aborted.
I found in expert-exchange that this error is related to Windows HCL or firmware. So I contacted Quantum and they carried out several tests and confirmed as nothing wrong with the device and also update the firmware version to latest.
My problem is after all these still I can not configure SBS backup. It is still giving the same error. Please help me to resolve this issue. As it is running for months now I am in a very crucial situation.