Thanks for the answers,
i guess, i had left to much open.
I have made a complete backup just to delete the old one.
If i got i right: A two backups must exists, so that one can be delete.
This this isn't that hard to accomplish, i just did it.

the output of q volh: ( well not all but ...  )
-------------------------------------------------------
        Date/Time: 07/29/04   10:18:58
     Volume Type: BACKUPFULL
   Backup Series: 2
Backup Operation: 0
      Volume Seq: 1
    Device Class: AUTOLTO_CLASS
     Volume Name: AKZ901L1
 Volume Location:
         Command:

       Date/Time: 08/17/04   10:06:05
     Volume Type: BACKUPFULL
   Backup Series: 3
Backup Operation: 0
      Volume Seq: 1
    Device Class: AUTOLTO_CLASS
     Volume Name: AKZ911L1
 Volume Location:
         Command:
-------------------------------------------------------

the command: del volh type=dbb todate="anyvalue" -> always answers with:
----------------------------------------------------------------------
 0 sequential volume history entries were successfully deleted.
----------------------------------------------------------------------
which is in turn not really so successfull as it stats!

so again, what did i miss ???
or how to get rid of old database backups ???


With regrads
Mark Strasheim