> In my Netbackup Admin Console the drives are set up
> for TapeAlert (not sure what this is) and have no
> cleaning frequency set.
>
TapeAlert was initially an initiative driven by HP and now regardless of any LTO tape drive from HP, IBM or Seagate, all supports TapeAlert. And in tape cleaning perspective, TapeAlert is supported by NB so that when the drive need cleaning, NB would get notify and mount the cleaning tape to the require drive whenever necessary. No manual intervention nor setting of frequency-based cleaning is needed.