>  Collocation was enabled  on copypool tapes  ,  for Disaster recovery
purpose,
> by doing this we  was able to
> restore much faster at DR site .
> Now i don`t need that , and also don`t want to send  " DLT`s=no.clients "
every
> day  to offsite , This is the reason
>  i want to delete copypool tapes   set collocation=no   on copypool , and
issue
> backup stgpool tapepool=copypool .

If your goal is to reduce the number of tapes sent offsite each day, there is
no need to delete the tapes that are already offsite. Changing the collocation
setting on the copy storage pool will reduce the number of tapes sent offsite
each day, irrespective of the arrangement of files on tapes sent offsite
before the setting was changed.