主库:

  alter database add logfile '/u01/app/oracle/oradata/orcl2/redo08.log' size 200m;

  alter database add standby logfile '/u01/app/oracle/oradata/orcl2/redo09.log' size 200m;

备库

   recover managed standby database cancel;

  alter system set standby_file_management=manual;

  alter database add logfile '/u01/app/oracle/oradata/orcl/redo08.log' size 200m;

  alter database add standby logfile '/u01/app/oracle/oradata/orcl/redo09.log' size 200m;

  recover managed standby database using current logfile disconnect from session;

  alter system set standby_file_management=auto;