BR0279E Return code from 'SHELL=/bin/sh /oracle/SID/112_64/bin/rman nocatalog': 1 BR0536E RMAN call for database instance SID failed

Hi,

we are getting below error when full online + redo log backup is fired PRD system.

BR0278E Command output of 'SHELL=/bin/sh /oracle/SID/112_64/bin/rman nocatalog':

ORA-01031: insufficient privileges

BR0279E Return code from 'SHELL=/bin/sh /oracle/SID/112_64/bin/rman nocatalog': 1

BR0536E RMAN call for database instance SID failed

BR0532E Cataloging backups of all database files failed

We tried with change ownership of  "backSID.log" file which is under file system /oracle/SID/sapbackup". With ORASID:DBA  

And

Go under /usr/sap/SID/SYS/run/exe and run

sqlplus /nolog @sapdba_role.sql SR3 <- -- For ABAP sceham

Still same issue   Kindly help to resolve this issue.

Thanks,

Vikas Rajeshirke