Oralce10g data guard配置

具體步驟如下：

一、主庫操作

1、修改主庫屬性：

sql> alter database force logging;

Database altered.
##查看狀態
sql> select FORCE_LOGGING from v$database;

FOR
---
YES

2、修改數據庫爲歸檔模式：

sql> alter system set log_archive_dest_1='LOCATION=/arch1/' scope=both;

system altered.

sql> shutdown immediate;
Database closed.
Database dismounted.
oracle instance shut down.
sql> startup mount;
oracle instance started.

Total system Global Area 167772160 bytes
Fixed Size                  1218292 bytes
Variable Size              79694092 bytes
Database Buffers           79691776 bytes
Redo Buffers                7168000 bytes
Database mounted.

sql> alter database archivelog;

Database altered.

sql> archive log list;
Database log mode              Archive Mode
Automatic archival             Enabled
Archive destination            /arch1/
Oldest online log sequence     1
Next log sequence to archive   2
Current log sequence           2
sql> alter database open;

Database altered.

3、添加standby logfile（也可以不加）

爲主數據庫添加"備用聯機日誌文件"，這裏要保證備日誌文件與主庫聯機日誌文件相同大小。

添加備用日誌文件是規則：備用日誌最少應該比redo log 多一個。推薦的備重做日誌數依賴於主數據庫上的線程數。

（每線程日誌文件最大數目 + 1 ） * 線程數

sql> select GROUP#,MEMBERS,BYTES/1024/1024 from v$log;

    GROUP#    MEMBERS BYTES/1024/1024
---------- ---------- ---------------
         1          1              50
         2          1              50
         3          1              50

sql> select GROUP#,MEMBER from v$logfile;

     GROUP# MEMBER
---------- ----------------------------------------
         3 /oracle/oradata/orcl/redo03.log
         2 /oracle/oradata/orcl/redo02.log
         1 /oracle/oradata/orcl/redo01.log

sql> alter database add standby logfile
2          group 4 ('/oracle/oradata/orclstd_redo04a.log','/oracle/oradata/orcl/std_redo04b.log') size 50m,
3          group 5 ('/oracle/oradata/orcl/std_redo05a.log','/oracle/oradata/orcl/std_redo05b.log') size 50m,
4          group 6 ('/oracle/oradata/orcl/std_redo06a.log','/oracle/oradata/orcl/std_redo06b.log') size 50m,
5          group 7 ('/oracle/oradata/orcl/std_redo07a.log','/oracle/oradata/orcl/std_redo08b.dbf') size 50m;

Database altered.

4、修改主庫參數文件：

sql> create pfile='/oracle/orcl.ora' from spfile;

File created.

orcl.__db_cache_size=79691776
orcl.__java_pool_size=4194304
orcl.__large_pool_size=4194304
orcl.__shared_pool_size=71303168
orcl.__streams_pool_size=0
*.audit_file_dest='/oracle/admin/orcl/adump'
*.background_dump_dest='/oracle/admin/orcl/bdump'
*.compatible='10.2.0.1.0'
*.control_files='/oracle/oradata/orcl/control01.ctl','/oracle/oradata/orcl/control02.ctl','/oracle/oradata/orcl/control03.ctl'
*.core_dump_dest='/oracle/admin/orcl/cdump'
*.db_block_size=8192
*.db_domain=''
*.db_file_multiblock_read_count=16
*.db_name='orcl'
*.db_recovery_file_dest='/oracle/flash_recovery_area'
*.db_recovery_file_dest_size=2147483648
*.dispatchers='(PROTOCOL=TCP) (SERVICE=orclXDB)'
*.job_queue_processes=10
*.DB_UNIQUE_NAME='orclpri'    ##必須定義每個數據庫的唯一標識
*.log_archive_config='DG_CONFIG=(orclpri,orclstandby)'     ###必須
*.log_archive_dest_1='LOCATION=/arch1/ VALID_FOR=(ALL_LOGFILES,ALL_ROLES)' DB_UNIQUE_NAME='orclpri'         ###必須本地的歸檔路徑
*.LOG_ARCHIVE_DEST_2='SERVICE=orclstandby arch ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=orclstandby'      ###必須(遠程服務器端的歸檔日誌

)
*.LOG_ARCHIVE_DEST_STATE_1=ENABLE
*.LOG_ARCHIVE_DEST_STATE_2=ENABLE
*.FAL_SERVER=orclstandby       ### 定義FAL服務器的 Net服務的名稱
*.FAL_CLIENT=orclpri    ### 定義備數據庫的 Net服務名     （這兩個參數在主庫可有可無，但備庫必須有。ORACLE 老外工程師說這個必須有^_^）
*.open_cursors=300
*.pga_aggregate_target=16777216
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.sga_target=167772160
*.undo_management='AUTO'
*.undo_tablespace='UNDOTBS1'
*.user_dump_dest='/oracle/admin/orcl/udump'
*.STANDBY_FILE_MANAGEMENT=AUTO        ###設置爲AUTO,使得當數據文件添加到主數據庫或者從主數據庫刪除的時候,對應的修改能夠在備用數據庫中自動執行 oracle oracle

5、用pfile啓動，再重新創建spfile.

sql> shutdown immediate;
Database closed.
Database dismounted.
oracle instance shut down.
sql> startup pfile='/oracle/orcl.ora'
oracle instance started.

Total system Global Area 167772160 bytes
Fixed Size                  1218292 bytes
Variable Size              79694092 bytes
Database Buffers           79691776 bytes
Redo Buffers                7168000 bytes
Database mounted.
Database opened.
sql>

sql> create spfile from pfile='/oracle/orcl.ora';

File created

6、在主庫創建密碼文件、以及控制文件。

[oracle@node2 oracle]$ orapwd file='/oracle/product/10.2.0/db_1/dbs/orapworcl.ora' password=oracle entries=10

sql> ALTER DATABASE CREATE STANDBY CONTROLFILE AS '/oracle/oradata/orcl/standby.ctl';

Database altered.

7、TNS信息如下：

主庫

ORCL =
(DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = tcp)(HOST = 172.16.37.239)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = orcl)
    )
)
orclpri =
(DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = tcp)(HOST = 172.16.37.239)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = orcl)
    )
)
orclstandby =
(DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = tcp)(HOST = 172.16.37.211)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = orcl)
    )
)

EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
    )
    (CONNECT_DATA =
      (SID = PLSExtProc)
      (PRESENTATION = RO)
    )
)
監聽信息如下

SID_LIST_LISTENER =
(SID_LIST =
    (SID_DESC =
      (SERVICE_NAME=orclpri)
      (ORACLE_HOME = /oracle/product/10.2.0/db_1)
        (SID_NAME=ORCL)
    )
)

LISTENER =
(DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = tcp)(HOST = localhost.localdomain)(PORT = 1521))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
    )
)

8、把數據庫scp到備庫相應的目錄（包括密碼文件、standby controlfile）

二備機操作

1、備份的參數文件內容

*.DB_UNIQUE_NAME='orclstandby'    ##必須定義每個數據庫的唯一標識
*.log_archive_config='DG_CONFIG=(orclpri,orclstandby)'     ###必須
*.log_archive_dest_1='LOCATION=/arch1/ VALID_FOR=(ALL_LOGFILES,ALL_ROLES)' DB_UNIQUE_NAME='orclstandby'         ###必須本地的歸檔路徑
*.LOG_ARCHIVE_DEST_2='SERVICE=orclpri arch ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=orclpri'      ###必須(遠程服務器端的歸檔日誌)
*.LOG_ARCHIVE_DEST_STATE_1=ENABLE
*.LOG_ARCHIVE_DEST_STATE_2=ENABLE
*.FAL_SERVER=orclstandby       ### 定義FAL服務器的Oracle Net服務的名稱
*.FAL_CLIENT=orclpri   ### 定義備數據庫的Oracle Net服務名     （這兩個參數在主庫可有可無，但備庫必須有。ORACLE 老外工程師說這個必須有^_^）
*.open_cursors=300
*.pga_aggregate_target=16777216
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.sga_target=167772160
*.undo_management='AUTO'
*.undo_tablespace='UNDOTBS1'
*.user_dump_dest='/oracle/admin/orcl/udump'
*.STANDBY_FILE_MANAGEMENT=AUTO

2、修改上面參數文件裏的

*.control_files='/oracle/oradata/orcl/control01.ctl','/oracle/oradata/orcl/control02.ctl','/oracle/oradata/orcl/control03.ctl'
爲：
*.control_files='/oracle/oradata/orcl/standby.ctl' ##在主機上生成的那個控制文件，也可以多放幾份

3、TNS信息如下：

備庫

SID_LIST_LISTENER =
(SID_LIST =
    (SID_DESC =
      (SERVICE_NAME=orclstandby)
      (ORACLE_HOME = /oracle/product/10.2.0/db_1)
        (SID_NAME=ORCL)
    )
)

LISTENER =
(DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = tcp)(HOST = localhost.localdomain)(PORT = 1521))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
    )
)

4、用創建的參數文件啓動數據庫到nomount

sql> startup pfile='/oracle/orclstandby.ora' nomount;
oracle instance started.

Total system Global Area 167772160 bytes
Fixed Size                  1218316 bytes
Variable Size              62916852 bytes
Database Buffers          100663296 bytes
Redo Buffers                2973696 bytes

sql> ALTER DATABASE MOUNT STANDBY DATABASE;

Database altered.

5、修改備庫處於應用歸檔狀態

sql> alter database recover managed standby database disconnect from session;

Database altered.

如果主庫從不過來歸檔，可以通過在主庫側手工修改參數如下：

ALTER system SET log_archive_dest_state_2='DEFER' SCOPE=MEMORY;
ALTER system SET log_archive_dest_state_2='ENABLE' SCOPE=MEMORY;

7、測試

通過在主庫執行alter system switch logfile；切換日誌可以觀察到備庫會自動應用通過主庫傳過來的日誌。

三、切換測試

1、在主庫端

select switchover_stats from v$database;

如果是to standby 表可以正常切換。

直接執行

ALTER DATABASE COMMIT TO SWITCHOVER TO PHYSICAL STANDBY;

否則執行：

ALTER DATABASE COMMIT TO SWITCHOVER TO PHYSICAL STANDBY WITH SESSION SHUTDOWN;

shutdown immediate;
startup nomount;
alter database mount standby database;

如果是to_primary 表可以正常切換。

2、在備庫

在備庫

SELECT SWITCHOVER_STATUS FROM V$DATABASE;

執行：

ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY;

否則執行：

ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY WITH SESSION SHUTDOWN;

shutdown immediate;
startup;

然後觀察主備庫日誌，如果正常的話會看到備庫會自動應用日誌。

lcfgaoyong

發佈了26 篇原創文章 · 獲贊 2 · 訪問量 12萬+

私信關注

Oralce10g data guard配置

SQL優化-20231016

單詞學習T

不想用Rank 和Partition by取一組數據中最大項的行

帶排序的層次化查詢

Oralce10g data guard配置

單詞學習UV

https://yachay.unat.edu.pe/blog/index.php?comment_area=format_blog&comment_component=blog&comment_co

linux以太網驅動總結