> As far as having NBU "do the reads, but not the writes", I have 
     > heard rumors of a file that can be created that will put NBU into a 
     > "non-writing" mode, i.e. all backups are written to /dev/null 
     > instead of disk or tape.  But I don't know the details of that.
     
     I've not tried it but according to the notes for Veritas advanced 
     NetBackup for unix course, to enable backups to /dev/null do the 
     following:
     
     - Define a disk storage unit, such as /tmp.
     
     - Touch the file /usr/openv/netbackup/bpdm_dev_null This causes 0 
     length fragments to go into the directory you defined as a storage 
     unit and creates catalogue entries for the backups (get rid of these 
     with bpexpdate).
     
     Presumably you remove the bpdm_dev_null file when you've finished 
     testing although they don't explicitly state this in the 
     instructions.....
     
     Peter McFarlane
 
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