Oracle dataguardÅäÖÃStep by Step

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1.1 ÉèÖÃÖ÷¿âµÄforce loggingģʽ
SQL> alter database force logging;
Database altered.
1.2 ´´½¨Ö÷¿âÃÜÂëÎļþ
$ orapwd file=orapw$ORACLE_SID password=thunis entries=4
1.3 ÅäÖÃÖ÷¿âstandby redo log£¬²¢ÑéÖ¤½á¹û
SQL> alter database add standby logfile group 4('/u01/app/oradata/guard1/redo04.log') size 50m;
Database altered.
SQL> select group#, thread#, sequence#, archived, status from v$standby_log;
    GROUP#    THREAD#  SEQUENCE# ARC STATUS
---------- ---------- ---------- --- ----------
         4          0          0 YES UNASSIGNED
1.4 ÅäÖÃÖ÷¿â³õʼ»¯²ÎÊýÎļþ
    DB_NAME=guard1
    DB_UNIQUE_NAME=guard1
    LOG_ARCHIVE_CONFIG='DG_CONFIG=(guard1,guard2)'
    LOG_ARCHIVE_DEST_1='LOCATION=/u01/app/flash_recovery_area/GUARD1/arch VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=guard1'
    LOG_ARCHIVE_DEST_2='SERVICE=guard2 LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=guard2'
    LOG_ARCHIVE_DEST_STATE_1=ENABLE
    LOG_ARCHIVE_DEST_STATE_2=ENABLE
    REMOTE_LOGIN_PASSWORDFILE=EXCLUSIVE
    LOG_ARCHIVE_FORMAT=%t_%s_%r.arc
    LOG_ARCHIVE_MAX_PROCESSES=30
    /*ÒÔϲ¿·ÖΪÖ÷»úÇл»Îª±¸¿âʹÓÃ*/
    FAL_SERVER=guard2
    FAL_CLIENT=guard1
    DB_FILE_NAME_CONVERT='guard2','guard1'
    LOG_FILE_NAME_CONVERT='/u01/app/oradata/guard2','/u01/app/oradata/guard1'
    STANDBY_FILE_MANAGEMENT=AUTO
1.5 È·ÈÏÖ÷¿âµÄ¹éµµÄ£Ê½
SQL> startup mount
ORACLE instance started.
Total System Global Area  104857600 bytes
Fixed Size               &n