> [...]
> [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?

> 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?