• 同一服务器配置DataGuard


    实验环境:
    1.虚拟机VMware Server 1.0.6
    2.操作系统:
    ora10g@linux5 /home/oracle$ cat /etc/redhat-release
    Red Hat Enterprise Linux Server release 5.1 (Tikanga)
    3.数据库环境(OMF管理的数据库):
    sys@ora10g> select * from v$version;

    BANNER
    ----------------------------------------------------------------
    Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - Prod
    PL/SQL Release 10.2.0.4.0 - Production
    CORE    10.2.0.4.0      Production
    TNS for Linux: Version 10.2.0.4.0 - Production
    NLSRTL Version 10.2.0.4.0 - Production

    一.Primary 数据库配置及相关操作
    1.确认primary库处于归档模式
    sys@ora10g> archive log list;
    Database log mode              Archive Mode
    Automatic archival             Enabled
    Archive destination            USE_DB_RECOVERY_FILE_DEST
    Oldest online log sequence     33
    Next log sequence to archive   35
    Current log sequence           35

    2.将primary库置为FORCE LOGGING 模式
    sys@ora10g> alter database force logging;

    Database altered.

    3.在primary库创建standby数据库控制文件
    sys@ora10g> alter database create standby controlfile as '/home/oracle/backup/ora10gdg.ctl';

    Database altered.

    4.创建primary库客户端初始化参数文件
    1).创建主库中的pfile
    sys@ora10g> create pfile from spfile;

    File created.

    2).备份到backup目录用于创建备库的pfile
    sys@ora10g> ! cp /oracle/u01/app/oracle/product/10.2.0/db_1/dbs/initora10g.ora /home/oracle/backup/initora10gdg.ora

    3).修改后主库pfile中内容如下:
    ora10gdg@linux5 /oracle/u01/app/oracle/product/10.2.0/db_1/dbs$ cat initora10g.ora
    ora10g.__db_cache_size=20971520
    ora10g.__java_pool_size=4194304
    ora10g.__large_pool_size=4194304
    ora10g.__shared_pool_size=71303168
    ora10g.__streams_pool_size=0
    *.audit_file_dest='/oracle/u01/app/oracle/admin/ora10g/adump'
    *.background_dump_dest='/oracle/u01/app/oracle/admin/ora10g/bdump'
    *.compatible='10.2.0.3.0'
    *.control_files='/oracle/u02/oradata/ORA10G/controlfile/o1_mf_4srph8fv_.ctl','/oracle/u01/app/oracle/flash_recovery_area/ORA10G/controlfile/o1_mf_4srph96b_.ctl'
    *.core_dump_dest='/oracle/u01/app/oracle/admin/ora10g/cdump'
    *.cursor_sharing='EXACT'
    *.db_block_size=8192
    *.db_create_file_dest='/oracle/u02/oradata'
    *.db_create_online_log_dest_1='/oracle/u01'
    *.db_create_online_log_dest_2='/oracle/u02'
    *.db_create_online_log_dest_3='/oracle/u02'
    *.db_domain=''
    *.db_file_multiblock_read_count=16
    *.db_name='ora10g'
    *.db_recovery_file_dest='/oracle/u01/app/oracle/flash_recovery_area'
    *.db_recovery_file_dest_size=4294967296
    *.job_queue_processes=10
    *.log_archive_format='%t_%s_%r.dbf'
    *.open_cursors=300
    *.pga_aggregate_target=16777216
    *.processes=500
    *.remote_login_passwordfile='EXCLUSIVE'
    *.sga_max_size=104857600
    *.sga_target=104857600
    *.undo_management='AUTO'
    *.undo_tablespace='UNDOTBS1'
    *.user_dump_dest='/oracle/u01/app/oracle/admin/ora10g/udump'

    #################################################################
    #Parameters for Primary Database.
    #################################################################
    *.DB_NAME='ora10g'
    *.DB_UNIQUE_NAME=ora10g
    *.LOG_ARCHIVE_FORMAT=log%t_%s_%r.arc
    *.LOG_ARCHIVE_CONFIG='DG_CONFIG=(ora10g,ora10gdg)'
    *.LOG_ARCHIVE_DEST_1='LOCATION=/oracle/u02/oradata/ORA10G VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=ora10g'
    *.LOG_ARCHIVE_DEST_2='SERVICE=ora10gdg LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=ora10gdg'
    *.LOG_ARCHIVE_DEST_STATE_1=ENABLE
    *.LOG_ARCHIVE_DEST_STATE_2=ENABLE
    *.REMOTE_LOGIN_PASSWORDFILE=EXCLUSIVE

    #################################################################
    #Parameters which using for switch over from Primary to Standby.
    #################################################################
    *.FAL_SERVER=ora10gdg
    *.FAL_CLIENT=ora10g
    *.DB_FILE_NAME_CONVERT='/oracle/u02/oradata/ORA10GDG/datafile','/oracle/u02/oradata/ORA10G/datafile'
    *.LOG_FILE_NAME_CONVERT='/oracle/u02/oradata/ORA10GDG/onlinelog','/oracle/u02/oradata/ORA10G/onlinelog'
    *.STANDBY_FILE_MANAGEMENT=AUTO
    *.STANDBY_ARCHIVE_DEST='/ora10g_arch'


    4).通过pfile 重建spfile
    sys@ora10g> shutdown immediate;
    Database closed.
    Database dismounted.
    ORACLE instance shut down.

    NotConnected@> create spfile from pfile='initora10g.ora';

    File created.

    5.配置tnsnames.ora文件
    ora10g@linux5 /oracle/u01/app/oracle/product/10.2.0/db_1/network/admin$ cat tnsnames.ora
    # tnsnames.ora Network Configuration File: /oracle/u01/app/oracle/product/10.2.0/db_1/network/admin/tnsnames.ora
    # Generated by Oracle configuration tools.

    ORA10G =
      (DESCRIPTION =
        (ADDRESS = (PROTOCOL = TCP)(HOST = linux5)(PORT = 1521))
        (CONNECT_DATA =
          (SERVER = DEDICATED)
          (SERVICE_NAME = ora10g)
        )
      )

    ORA10GDG =
      (DESCRIPTION =
        (ADDRESS = (PROTOCOL = TCP)(HOST = linux5)(PORT = 1521))
        (CONNECT_DATA =
          (SERVER = DEDICATED)
          (SERVICE_NAME = ora10gdg)
        )
      )

    EXTPROC_CONNECTION_DATA =
      (DESCRIPTION =
        (ADDRESS_LIST =
          (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
        )
        (CONNECT_DATA =
          (SID = PLSExtProc)
          (PRESENTATION = RO)
        )
      )

    ora10g@linux5 /oracle/u02/oradata/ORA10GDG/controlfile$ tnsping ora10g

    TNS Ping Utility for Linux: Version 10.2.0.4.0 - Production on 25-MAR-2009 03:03:10

    Copyright (c) 1997,  2007, Oracle.  All rights reserved.

    Used parameter files:
    /oracle/u01/app/oracle/product/10.2.0/db_1/network/admin/sqlnet.ora


    Used TNSNAMES adapter to resolve the alias
    Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = linux5)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = ora10g)))
    OK (50 msec)
    ora10g@linux5 /oracle/u02/oradata/ORA10GDG/controlfile$ tnsping ora10gdg

    TNS Ping Utility for Linux: Version 10.2.0.4.0 - Production on 25-MAR-2009 03:03:17

    Copyright (c) 1997,  2007, Oracle.  All rights reserved.

    Used parameter files:
    /oracle/u01/app/oracle/product/10.2.0/db_1/network/admin/sqlnet.ora


    Used TNSNAMES adapter to resolve the alias
    Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = linux5)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = ora10gdg)))
    OK (10 msec)

    二.Standby数据库配置及相关操作
    1.创建密码文件,注意保持sys 密码与primary 数据库一致
    ora10g@linux5 /oracle/u01/app/oracle/product/10.2.0/db_1/dbs$ orapwd file=orapwora10gdg password=sys entries=30

    2.创建所需目录(注意OMF管理的文件)
    ora10g@linux5 /home/oracle$ cd $ORACLE_BASE/admin
    ora10g@linux5 /oracle/u01/app/oracle/admin$ mkdir ora10gdg
    ora10g@linux5 /oracle/u01/app/oracle/admin$ cd ora10gdg
    ora10g@linux5 /oracle/u01/app/oracle/admin/ora10gdg$ mkdir dpdump
    ora10g@linux5 /oracle/u01/app/oracle/admin/ora10gdg$ mkdir cdump
    ora10g@linux5 /oracle/u01/app/oracle/admin/ora10gdg$ mkdir pfile
    ora10g@linux5 /oracle/u01/app/oracle/admin/ora10gdg$ mkdir bdump
    ora10g@linux5 /oracle/u01/app/oracle/admin/ora10gdg$ mkdir udump
    ora10g@linux5 /oracle/u01/app/oracle/admin/ora10gdg$ mkdir adump

    ora10g@linux5 /oracle/u01/app/oracle/flash_recovery_area$ mkdir ORA10GDG
    ora10g@linux5 /oracle/u01/app/oracle/flash_recovery_area$ cd ORA10GDG
    ora10g@linux5 /oracle/u01/app/oracle/flash_recovery_area/ORA10GDG$ mkdir controlfile
    ora10g@linux5 /oracle/u01/app/oracle/flash_recovery_area/ORA10GDG$ mkdir onlinelog
    ora10g@linux5 /oracle/u01/app/oracle/flash_recovery_area/ORA10GDG$ mkdir backupset
    ora10g@linux5 /oracle/u01/app/oracle/flash_recovery_area/ORA10GDG$ mkdir autobackup
    ora10g@linux5 /oracle/u01/app/oracle/flash_recovery_area/ORA10GDG$ mkdir archivelog

    3.复制数据文件到standby库对应的目录(datafile,log,controlfiles)
    1).拷贝数据文件
    $ cp -R /oracle/u02/oradata/ORA10G/datafile /oracle/u02/oradata/ORA10GDG
    2).拷贝日志文件,注意是OMF管理的
    $ cp -R /oracle/u02/oradata/ORA10G/onlinelog /oracle/u02/oradata/ORA10GDG
    $ cp -R /oracle/u01/app/oracle/flash_recovery_area/ORA10G/onlinelog /oracle/u01/app/oracle/flash_recovery_area/ORA10GDG
    3).拷贝主库生成的控制文件,注意是OMF管理的
    $ cp /home/oracle/backup/ora10gdg.ctl /oracle/u02/oradata/ORA10GDG/controlfile/o1_mf_4srph8fv_.ctl
    $ cp /home/oracle/backup/ora10gdg.ctl /oracle/u01/app/oracle/flash_recovery_area/ORA10GDG/controlfile/o1_mf_4srph96b_.ctl


    4.修改standby初始化参数文件
    1).standby的初始化参数如下
    ora10gdg@linux5 /oracle/u01/app/oracle/product/10.2.0/db_1/dbs$ cat initora10gdg.ora
    ora10g.__db_cache_size=20971520
    ora10g.__java_pool_size=4194304
    ora10g.__large_pool_size=4194304
    ora10g.__shared_pool_size=71303168
    ora10g.__streams_pool_size=0
    *.audit_file_dest='/oracle/u01/app/oracle/admin/ora10gdg/adump'
    *.background_dump_dest='/oracle/u01/app/oracle/admin/ora10gdg/bdump'
    *.compatible='10.2.0.3.0'
    *.control_files='/oracle/u02/oradata/ORA10GDG/controlfile/o1_mf_4srph8fv_.ctl','/oracle/u01/app/oracle/flash_recovery_area/ORA10GDG/controlfile/o1_mf_4srph96b_.ctl'
    *.core_dump_dest='/oracle/u01/app/oracle/admin/ora10gdg/cdump'
    *.cursor_sharing='EXACT'
    *.db_block_size=8192
    *.db_create_file_dest='/oracle/u02/oradata'
    *.db_create_online_log_dest_1='/oracle/u01'
    *.db_create_online_log_dest_2='/oracle/u02'
    *.db_create_online_log_dest_3='/oracle/u02'
    *.db_domain=''
    *.db_file_multiblock_read_count=16
    *.db_name='ora10g'
    *.db_recovery_file_dest='/oracle/u01/app/oracle/flash_recovery_area'
    *.db_recovery_file_dest_size=4294967296
    *.job_queue_processes=10
    *.log_archive_format='%t_%s_%r.dbf'
    *.open_cursors=300
    *.pga_aggregate_target=16777216
    *.processes=500
    *.remote_login_passwordfile='EXCLUSIVE'
    *.sga_max_size=104857600
    *.sga_target=104857600
    *.undo_management='AUTO'
    *.undo_tablespace='UNDOTBS1'
    *.user_dump_dest='/oracle/u01/app/oracle/admin/ora10gdg/udump'

    #################################################################
    #Parameters for Standby Database.
    #################################################################
    *.DB_NAME='ora10g'
    *.DB_UNIQUE_NAME=ora10gdg
    *.LOG_ARCHIVE_FORMAT=log%t_%s_%r.arc
    *.LOG_ARCHIVE_CONFIG='DG_CONFIG=(ora10g,ora10gdg)'
    *.DB_FILE_NAME_CONVERT='/oracle/u02/oradata/ORA10G/datafile','/oracle/u02/oradata/ORA10GDG/datafile'
    *.LOG_FILE_NAME_CONVERT='/oracle/u02/oradata/ORA10G/onlinelog','/oracle/u02/oradata/ORA10GDG/onlinelog'
    *.STANDBY_ARCHIVE_DEST='/ora10gdg_arch'
    *.FAL_SERVER=ora10g
    *.FAL_CLIENT=ora10gdg
    *.STANDBY_FILE_MANAGEMENT=AUTO

    #################################################################
    #Parameters which using for switch over from Standby to Primary.
    #################################################################
    *.LOG_ARCHIVE_DEST_1='LOCATION=/oracle/u02/oradata/ORA10GDG VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=ora10gdg'
    *.LOG_ARCHIVE_DEST_2='SERVICE=ora10g LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=ora10g'
    *.LOG_ARCHIVE_DEST_STATE_1=ENABLE
    *.LOG_ARCHIVE_DEST_STATE_2=ENABLE
    *.REMOTE_LOGIN_PASSWORDFILE=EXCLUSIVE

    2).通过该pfile 创建spfile
    NotConnected@> create spfile from pfile= 'initora10gdg.ora';

    File created.

    5.启动standby 到mount
    NotConnected@> startup mount;
    ORACLE instance started.

    Total System Global Area  104857600 bytes
    Fixed Size                  1266056 bytes
    Variable Size              79695480 bytes
    Database Buffers           20971520 bytes
    Redo Buffers                2924544 bytes
    Database mounted.

    6.启动redo 应用
    NotConnected@> alter database recover managed standby database disconnect from session;

    Database altered.

    7.查看同步情况
    首先连接到primary 数据库
    sys@ora10g> select instance_name,host_name,version,status from v$instance;

    INSTANCE_NAME    HOST_NAME            VERSION           STATUS
    ---------------- -------------------- ----------------- ------------
    ora10g           linux5               10.2.0.4.0        OPEN

    sys@ora10g> alter system switch logfile;

    System altered.

    sys@ora10g> select max(sequence#) from v$archived_log;

    MAX(SEQUENCE#)
    --------------
                36

    连接到standby 数据库
    NotConnected@> select instance_name,host_name,version,status from v$instance;

    INSTANCE_NAME    HOST_NAME            VERSION           STATUS
    ---------------- -------------------- ----------------- ------------
    ora10gdg         linux5               10.2.0.4.0        MOUNTED

    NotConnected@> select max(sequence#) from v$archived_log;

    MAX(SEQUENCE#)
    --------------
                36

    8.暂停redo 应用
    NotConnected@>ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;

    三.验证standby数据库正确性
    1.primary在sec用户创建一个表
    sec@ora10g> create table test_dg (a int);

    Table created.

    sec@ora10g> conn / as sysdba
    Connected.
    sys@ora10g> alter system switch logfile;

    System altered.

    sys@ora10g> select max(sequence#) from v$archived_log;

    MAX(SEQUENCE#)
    --------------
                38

    2.查看standby是否存在该表
    NotConnected@> select max(sequence#) from v$archived_log;

    MAX(SEQUENCE#)
    --------------
                38

    NotConnected@> alter database recover managed standby database cancel;

    Database altered.

    NotConnected@> alter database open read only;

    Database altered.

    sys@ora10gdg> conn sec/sec
    Connected.

    sec@ora10gdg> desc test_dg;
     Name       Null?    Type
     ---------- -------- ---------------
     A                   NUMBER(38)

    OK,成功。

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  • 原文地址:https://www.cnblogs.com/haoxiaoyu/p/3678717.html
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