Is there any command from which we can get to know which tapes were used for catalog backup ?
Click in your Catalog volume pool?
Look in the DR file that you have carefully arranged to have mailed to you everytime a catalog backup is run.
Indeed DR file for latest, Catalog Pool for all backups? See which are used.
I think revaroo has the best answer, I just didn't want to be left out ... :0)
Check out this:
/usr/openv/netbackup/bin/admincmd> bpmedialist -mlist -U -p CatalogBackup -h <host_name>
You can try this as well :
bpimagelist -policy your_catalog_policy_name -hoursago 240 -U -media
Thanks All for your valueable inputs :)