Try with the -h or -host option, you need to tell netbackup the media 
server that wrote to the tape.  Otherwise the master server will give you 
those errors as you are showing.

On Mon, 3 Dec 2007, Dave Markham wrote:

> And to add when i do bpexdate -m <tape> -d 0 -force im getting message
>
> "requested media id was not found in the EMM database"
>
> I know that as it was written on the SAN media server that the tape can
> only be used by that media server but i assumed the upgrade brought all
> data into the EMM database
>
> Cheers
>
> Dave Markham wrote:
>> Running Netbackup 6.0MP4 on Solaris 9 for Master server. 3 x SAN media
>> servers running Netbackup 5.0mp7 on solaris.
>>
>> Im have recently upgraded my master from 5 to 6 and am now trying to
>> free up some tapes by expiring them.
>>
>> When i do bpexpdate -m <media id> -d 0 <tape> im getting an error saying
>>
>> "could no deassign media due to Media Manager Error"
>>
>> I have also tried using the gui, set the expiration to today with a few
>> minutes time later than current time and the tape hasnt expired.
>>
>> Someone mentioned on a previous problem had i ran nbpushdata
>> -modify_5x_hosts which i hadnt and am wondering can i run that now? I
>> did run the nbupushdata -add command after my upgrade which worked. Also
>> do i need to do anything on the media servers which are still at 5?
>>
>>
>> Cheers
>> _______________________________________________
>> Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
>> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>>
>>
>
> _______________________________________________
> Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>
_______________________________________________
Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu