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  • Oracle DataGuard 常用维护命令参考手册

    Oracle DataGuard 常用维护命令参考手册

    Start Standby Database

    startup nomount
    alter database mount standby database;
    alter database recover managed standby database disconnect;


    Disable/Enable archive log destinations

    alter system set log_archive_dest_state_2 = 'defer';
    alter system set log_archive_dest_state_2 = 'enable';

    To remove a delay from a standby

    alter database recover managed standby database cancel;

    alter database recover managed standby database nodelay disconnect;

    Stop and Start of Logical standby apply

    alter database stop logical standby apply;
    alter database start logical standby apply;

    Physical Standby switchover:
    In Primary Database:

    ALTER DATABASE COMMIT TO SWITCHOVER TO PHYSICAL STANDBY;
    SHUTDOWN IMMEDIATE;
    STARTUP NOMOUNT;
    ALTER DATABASE MOUNT STANDBY DATABASE;

    In standby Database:

    ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY;
    SHUTDOWN IMMEDIATE;
    STARTUP;

    In Primary Database:

    ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION;

    If the primary Database is down,we can use fllowing step to active standby database:

    Alter DATABASE RECOVER MANAGED STANDBY DATABASE FINISH;
    Alter DATABASE COMMIT TO SWITCHOVER TO PRIMARY;
    SHUTDOWN IMMEDIATE;
    STARTUP;


    Register missing archive log file
    Find archive log gap by query:

    SELECT THREAD#, LOW_SEQUENCE#, HIGH_SEQUENCE# FROM V$ARCHIVE_GAP;

    register using:

    ALTER DATABASE REGISTER PHYSICAL LOGFILE 'filespec1';

    http://www.eygle.com/archives/2009/03/oracle_dataguard_manual.html

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  • 原文地址:https://www.cnblogs.com/yaoyangding/p/12810059.html
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