Move audit information away from SYSAUX

Check current tablespace location

SELECT table_name, tablespace_name FROM dba_tables
WHERE table_name IN ('AUD$', 'FGA_LOG$') ORDER BY table_name; 

Create tablespace for audit

create tablespace AUDIT_DATA datafile size 1G autoextend on; 

Move to the new AUDIT_DATA tablespace

BEGIN
  DBMS_AUDIT_MGMT.set_audit_trail_location(
  audit_trail_type => DBMS_AUDIT_MGMT.AUDIT_TRAIL_AUD_STD,--this moves table AUD$
  audit_trail_location_value => 'AUDIT_DATA');
  DBMS_AUDIT_MGMT.set_audit_trail_location(
  audit_trail_type => DBMS_AUDIT_MGMT.AUDIT_TRAIL_FGA_STD,--this moves table FGA_LOG$
  audit_trail_location_value => 'AUDIT_DATA');
END;
/