ASR can not recognize backup media

Hi!

My Server model is Dell PowerEdge T300 running Windows 2003 Standard R2. It

attached with Tandberg TS400 Backup Tape device.

My server has installed Veritas 9.0 with IDR option. However when I try to

restore the system from Veritas IDR, the system prompt me can't recognize the

backup media. I have modify the asr.sif file in IDR diskete and add on the

Tandberg TS400 backup driver in this file and rerun the IDR, however result

failed also.

Seem Veritas IDR option failed then I have tried to use ASR wizard from

ntbackup to do the system backup. When I try to restore it with ASR. The

system always prompt me can not find the media. Even I have insert the

correct media. I have follow the Microsoft instruction to modify the asr.sif

to add the third party backup device driver it in. however still fail for

system restore process.

This is the instruction from Microsoft Website

http://support.microsoft.com/kb/887494/

Veritas and ntbackup can run the system backup successful. However when want

to restore the system from IDR and ASR failed. I have tried many methods but

still fail. So may I know any solution for it?

Thanks & Regards