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  • RAC+DG(asm单实例)

    RAC+DG(asm单实例)

    原创 Oracle 作者：hellohf123 时间：2021-09-23 16:04:11  471  0

    rac搭建参考 http://blog.itpub.net/70004783/viewspace-2792218/

    DG(asm单实例)参考 http://blog.itpub.net/70004783/viewspace-2792705/

    DG是都安装完数据库，后进asmcmd里面将所有的数据文件，redolog等都删除，文件文件夹删除。

    1、rac俩节点加dg节点hosts文件

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    [root@rac1 ~]# cat /etc/hosts
    127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
    ::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
    #public ip ent1
    10.8.98.103 rac1
    10.8.98.104 rac2
    #priv ip ent2
    192.168.1.103   rac1-priv
    192.168.1.104   rac2-priv
    #vip ip
    10.8.98.105 rac1-vip
    10.8.98.106 rac2-vip
    #scan ip
    10.8.98.107 cluster-scan
    #dg
    10.8.98.102 racdg

    2、RAC开启归档，主机开启force logging 模式

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    SQL> alter database archivelog;
    Database altered.
    SQL> alter database force logging;
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    alter system set db_unique_name='prod' scope=spfile;
    alter system set log_archive_config='DG_CONFIG=(prod,prodstd)' scope=both sid='*';
    alter system set log_archive_dest_1='LOCATION=+ARCHDG01/ VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=prod' scope=both sid='*';
    alter system set log_archive_dest_2='SERVICE=tns_standby LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=prodstd' scope=both sid='*';
    alter system set log_archive_format='%t_%s_%r.arc' scope=spfile sid='*';
    alter system set log_archive_max_processes=8 scope=both sid='*';
    alter system set db_file_name_convert='+DATADG01/','+DATADG01/','+DATADG02/','+DATADG02/' scope=spfile sid='*';
    alter system set log_file_name_convert='+DATADG01/','+DATADG01/','+DATADG02/','+DATADG02/' scope=spfile sid='*';;
    alter system set standby_file_management=AUTO scope=both sid='*';
    alter system set fal_server='tns_standby' scope=both sid='*';
    alter system set fal_CLIENT='tns_primary' scope=both sid='*';

    3、重新启动数据库， 检查上述参数配置。

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    set linesize 500 pages 0
    col value for a90
    col name for a50
    select name, value from v$parameter where name in ('db_name','db_unique_name','log_archive_config', 'log_archive_dest_1','log_archive_dest_2','log_archive_dest_state_1','log_archive_dest_state_2','remote_login_passwordfile','log_archive_format','log_archive_max_processes','fal_server','db_file_name_convert', 'log_file_name_convert', 'standby_file_management');

    4、查询主库日志文件，并添加standby log

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    SQL> select thread#,group#,members,bytes/1024/1024 from v$log;
         1     1          2       50
         1     2          2       50
         2     3          2       50
         2     4          2       50
         1     5          2       50
         2     6          2       50
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    alter database add standby logfile thread 1 group 21 size 50m;
    alter database add standby logfile thread 1 group 22 size 50m;
    alter database add standby logfile thread 1 group 23 size 50m;
    alter database add standby logfile thread 2 group 24 size 50m;
    alter database add standby logfile thread 2 group 25 size 50m;
    alter database add standby logfile thread 2 group 26 size 50m;

    5、rac端更改lisenter.ora,tnsnames.ora（俩节点）lisenter需要重新reload一下

    节点1

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    [grid@rac1:/home/grid]$cat /u01/app/11.2.0/grid/network/admin/listener.ora
    SID_LIST_LISTENER =
      (SID_LIST =
         (SID_DESC =
          (GLOBAL_DBNAME = prod)
          (ORACLE_HOME = /u01/app/oracle/product/11.2.0/db_1)
          (SID_NAME = prod1))
      )
    LISTENER=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER))))        # line added by Agent
    LISTENER_SCAN1=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN1))))        # line added by Agent
    ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER_SCAN1=ON        # line added by Agent
    ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER=ON      # line added by Agent
    [grid@rac1:/home/grid]$

    节点2

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    [grid@rac2:/home/grid]$cat /u01/app/11.2.0/grid/network/admin/listener.ora
    SID_LIST_LISTENER =
      (SID_LIST =
         (SID_DESC =
          (GLOBAL_DBNAME = prod)
          (ORACLE_HOME = /u01/app/oracle/product/11.2.0/db_1)
          (SID_NAME = prod2))
      )
    LISTENER_SCAN1=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN1))))        # line added by Agent
    LISTENER=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER))))        # line added by Agent
    ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER=ON      # line added by Agent
    ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER_SCAN1=ON        # line added by Agent

    节点1和2

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    [oracle@rac1:/u01/app/oracle/product/11.2.0/db_1/network/admin]$cat tnsnames.ora 
    # tnsnames.ora Network Configuration File: /u01/app/oracle/product/11.2.0/db_1/network/admin/tnsnames.ora
    # Generated by Oracle configuration tools.
    PROD =
      (DESCRIPTION =
        (ADDRESS = (PROTOCOL = TCP)(HOST = cluster-scan)(PORT = 1521))
        (CONNECT_DATA =
          (SERVER = DEDICATED)
          (SERVICE_NAME = prod)
        )
      )
    tns_primary =
      (DESCRIPTION =
        (ADDRESS = (PROTOCOL = TCP)(HOST = 10.8.98.107)(PORT = 1521))
        (CONNECT_DATA =
          (SERVER = DEDICATED)
          (SERVICE_NAME = prod)
        )
      )
    tns_standby =
      (DESCRIPTION =
        (ADDRESS = (PROTOCOL = TCP)(HOST = 10.8.98.102)(PORT = 1521))
        (CONNECT_DATA =
          (SERVER = DEDICATED)
          (SERVICE_NAME = prod)
        )
      )

    6、 通过asmcmd，将dg上面的原来的数据文件，控制文件，日志文件都清空，，删除原来系统上的pfile和密码文件

    7、rac通过spfile创建pfile，传到dg，修改必要参数

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    [oracle@rac1:/home/oracle]$sqlplus / as sysdba
    SQL*Plus: Release 11.2.0.4.0 Production on Thu Sep 23 15:23:12 2021
    Copyright (c) 1982, 2013, Oracle.  All rights reserved.
    Connected to:
    Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
    With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
    Data Mining and Real Application Testing options
    SQL> create pfile='/home/oracle/initproddg.ora' from spfile;
    File created.
    SQL>

    修改后为

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    [oracle@racdg:/u01/app/oracle/product/11.2.0/db_1/dbs]$cat initproddg.ora 
    *.audit_file_dest='/u01/app/oracle/admin/prod/adump'
    *.audit_trail='db'
    #*.cluster_database=true
    *.compatible='11.2.0.4.0'
    #*.control_files='+DATADG01/prod/controlfile/current.260.1083328405','+DATADG02/prod/controlfile/current.256.1083328405'
    *.db_block_size=8192
    *.db_create_file_dest='+DATADG01'
    *.db_create_online_log_dest_1='+DATADG01'
    *.db_create_online_log_dest_2='+DATADG02'
    *.db_domain=''
    *.db_file_name_convert='+DATADG01/','+DATADG01/','+DATADG02/','+DATADG02/'
    *.db_name='prod'
    *.db_recovery_file_dest='+ARCHDG01'
    *.db_recovery_file_dest_size=4621074432
    *.db_unique_name='prodstd'
    *.diagnostic_dest='/u01/app/oracle'
    *.dispatchers='(PROTOCOL=TCP) (SERVICE=prodXDB)'
    *.fal_client='tns_standby'
    *.fal_server='tns_primary'
    *.log_archive_config='DG_CONFIG=(prod,prodstd)'
    *.log_archive_dest_1='LOCATION=+ARCHDG01/ VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=prodstd'
    *.log_archive_dest_2='SERVICE=tns_primary LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=prod'
    *.log_archive_format='%t_%s_%r.arc'
    *.log_archive_max_processes=8
    *.log_file_name_convert='+DATADG01/','+DATADG01/','+DATADG02/','+DATADG02/'
    *.memory_target=3922722816
    *.open_cursors=300
    *.processes=1000
    #*.remote_listener='cluster-scan:1521'
    *.remote_login_passwordfile='exclusive'
    *.sessions=1105
    *.standby_file_management='AUTO'
    [oracle@racdg:/u01/app/oracle/product/11.2.0/db_1/dbs]$

    修改dg端 lisenter.ora,tnsnames.ora

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    [grid@racdg:/u01/app/11.2.0/grid/network/admin]$lsnrctl reload
    LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 23-SEP-2021 15:31:31
    Copyright (c) 1991, 2013, Oracle.  All rights reserved.
    Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
    The command completed successfully
    [grid@racdg:/u01/app/11.2.0/grid/network/admin]$cat listener.ora
    # listener.ora Network Configuration File: /u01/app/11.2.0/grid/network/admin/listener.ora
    # Generated by Oracle configuration tools.
    SID_LIST_LISTENER =
      (SID_LIST =
         (SID_DESC =
          (GLOBAL_DBNAME = prod)
          (ORACLE_HOME = /u01/app/oracle/product/11.2.0/db_1)
          (SID_NAME = proddg))
      )
    LISTENER =
      (DESCRIPTION_LIST =
        (DESCRIPTION =
          (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
          (ADDRESS = (PROTOCOL = TCP)(HOST = racdg)(PORT = 1521))
        )
      )
    ADR_BASE_LISTENER = /u01/app/grid
    ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER=ON      # line added by Agent
    [grid@racdg:/u01/app/11.2.0/grid/network/admin]$
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    [oracle@racdg:/u01/app/oracle/product/11.2.0/db_1/network/admin]$cat tnsnames.ora 
    # tnsnames.ora Network Configuration File: /u01/app/oracle/product/11.2.0/db_1/network/admin/tnsnames.ora
    # Generated by Oracle configuration tools.
    PROD =
      (DESCRIPTION =
        (ADDRESS = (PROTOCOL = TCP)(HOST = racdg)(PORT = 1521))
        (CONNECT_DATA =
          (SERVER = DEDICATED)
          (SERVICE_NAME = prod)
        )
      )
    tns_primary =
      (DESCRIPTION =
        (ADDRESS = (PROTOCOL = TCP)(HOST = 10.8.98.107)(PORT = 1521))
        (CONNECT_DATA =
          (SERVER = DEDICATED)
          (SERVICE_NAME = prod)
        )
      )
    tns_standby =
      (DESCRIPTION =
        (ADDRESS = (PROTOCOL = TCP)(HOST = 10.8.98.102)(PORT = 1521))
        (CONNECT_DATA =
          (SERVER = DEDICATED)
          (SERVICE_NAME = prod)
        )
      )
    [oracle@racdg:/u01/app/oracle/product/11.2.0/db_1/network/admin]$

    拷贝密码文件到dg端

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    [oracle@rac1:/u01/app/oracle/product/11.2.0/db_1/dbs]$scp orapwprod1 racdg:/u01/app/oracle/product/11.2.0/db_1/dbs/orapwproddg

    8、测试tnsping  ok，rac数据库都是打开状态，备机打开到nomount状态。

    9. 实施数据库克隆通过rman duplicate   (在备机操作) 恢复时关闭rac的第二个节点，恢复完开启即可

    参照 http://blog.itpub.net/70004783/viewspace-2788445/

    10、测试在rac1 和rac2各创建一个表空间，到dg查看。
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  • 原文地址：https://www.cnblogs.com/yaoyangding/p/15596267.html
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