To reuse NBU DB tape you have to manually deassign them.  

Use vmquery -deassignbyid option.


> From veritas-bu-admin AT mailman.eng.auburn DOT edu  Fri Sep  8 12:02:54 2000
> I have a pool of tapes which are used for NetBackup Database backup. I
> have too many of these tapes in the pool and want to move some to
> another pool for regular backup duty. First, I made sure that there were
> no recent backups to the media. Then, I did the following:
> 
> bpexpdate -d 0 -ev CEI381
> vmdelete -m CEI381
> 
> using the xvmadm GUI, I ejected the media to the library's import/export
> port, "deleted" the media id from the library inventory, and injected
> the media back into the library and moved it to the pool for regular
> backups.
> 
> vmquery -m CEI381 -- showed it's status was 0x0
> 
> When NetBackup 3.2 found the media was available for use it mounted it
> and issued the following message:
> 
> img00 mdsi01 FREEZING media id CEI381, it contains NetBackup database
> backup data and cannot be used for backups
> 
> Any suggestions??
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> Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
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> 


-- 
Mike Wei       Collective Technologies, a Pencom Company
Email: wei AT colltech DOT com