brarchive backup other than /oracle/SID/oraarch

Dear Experts,

I need to configure archive log backup using brarchive function so that , backup is taken from other local mount point other than /oracle/SID/oraarch.

I have configured init.sap profile so that it copies from /oracle/SID/oraarch to /backup mount point which is local mounted.

Now I need init*.sap so that brarchive will take backup from /backup to tape. We are using TSM for backups.

I have gone through many sap note and blogs but couldnt able to see any information nor supported document for the same. Please help

Regards

ks