MOUNTED
SQL> alter database recover managed standby database using current logfile disconnect from session;
Database altered.
恢复一定的数据然后再OPEN。
SQL>alter database recover managed standby database cancel;
Database altered.
SQL> alter database open;
Database altered.
SQL> alter database recover managed standby database using current logfile disconnect from session;
Database altered.
查看alert日志，发现已经正常运转
SQL> SELECT THREAD#, LOW_SEQUENCE#, HIGH_SEQUENCE# FROM V$ARCHIVE_GAP;
查看standby上没有重做间隔，不放心可以做些DML,DDL操作进行测试。