Solution : https://service.sap.com/sap/support/notes/655017 (SAP Service marketplace login required)
Key words :
delete switch file'/oracle/r3t/817_64/sapbackup/, /oracle/<sid>/<release>_<bits>, '<oracle_home>/sapbackup' atlocation dircreate-1bki0410e, switch_list /oracle/<sid>/sapbackup/, lisswitch_sem /oracle/<sid>/sapbackup/, semswitch_log /oracle/<sid>/sapbackup/, \oracle\ap2\sapbackup\, /oracle/c11/920_64, additional sapbackup directory, external security tools
Related Notes :
651351 | BR tools on UNIX: Error due to executable permissions |