parameter:

backup_type = online
backup_type = online_cons

dirs example:

/oracle/SID/saparch
/oracle/SID/sapback
/oracle/SID/saptrace
/oracle/SID/trace

config files:

 /oracle/<sid>/112_64/dbs/init<SID>.sap  
 /oracle/<sid>/112_64/dbs/init<SID>.utl