On Tue, 26 Dec 2006, bob944 wrote:

> > [...]
> > [summary:  the normal misconfiguration:  drive paths and robot drive
> numbers were not matched correctly]
> 
> > ** IMPORTANT NOTE: Something I figured out myself and
> > then VERITAS confirmed it.  If you have INCORRECT
> > addressing and you do backups to tapes, when the tapes
> > are used again, they will try to go the drive that 
> > originally wrote them--
> 
> I don't remember ever observing that, ACSLS or not; NetBackup uses any
> drive available in a STU of the right density and media server.  Surely
> you're not confusing media-server ownership of assigned media, are you?
Again, the problem only happened when all drives were in use (in the 
robot).

> 
> > EVEN after you fix the addressing 
> > issue!  They MUST be EXPIRED first with
> > bpexpdate -d 0 -m MEDIA_ID so they lose that information. 
> > If at any point you have an addressing problem and write to 
> > tapes, BE SURE that you EXPIRE ALL TAPES written to during 
> > that testing phase before you do more testing-- after you
> > ensure the address/scsi/acsls mapping is correct of course.
> 
> Can you cite documentation for this?
> 
Unfortunately not; the Veritas engineer confirmed my finding verbally.

Justin.