Message Oracle ORA-27040 - file create error, unable to create file

ERRORfile create error, unable to create file
CAUSEcreate system call returned an error, unable to create file
ACTIONverify filename, and permissions

841014Error ORA-01580 in BRSPACE database space administration
323332Tablespace extension with ORA-01580 does not work
777556BRRECOVER fails after structure change of database
651351BR tools on UNIX: Error due to executable permissions
725251Known problems in patch level 122 of BR*Tools 6.20