Slot based backup in Netbackup

Hi All,

I got a requirement to implement a slot based backups in netbackup 7.5 , master server,media server -windows 2008r2. I am praparing media pool for each day and Using "override policy volume pool" to make sure that specific slot tape used for that backups.

Slot1 - Monday_offsite

Slot2- Tuesday_Offsite..etc..

First time i will create all media pools for entire week and move tape to perticular media pool, but when the retention period is completed these tapes will to go scratch automatically.

How to move the tapes to particular media pool after rentention perdiod is over.

Regards,

Kiran.