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ORACLE10G DATAGUARD配置笔记

原创 Oracle 作者:jolly10 时间:2007-11-21 14:57:43 0 删除 编辑
ORACLE10G DATAGUARD配置笔记[@more@]

ORACLE10G DATAGUARD配置笔记
环境:
OS:RHL4+ORACLE10G10.2.0.1
IP:172.17.61.160(primary) 172.17.61.161(standby)
ORACLE_SID:orcl
ORACLE_HOME:/oracle/product/10.2.0


一、配置standby database为MAXIMIZE PERFORMANCE模式
二、转换模式由MAXIMIZE PERFORMANCE到MAXIMIZE PROTECTION
三、主库和备库的switchover.

一、配置standby database为MAXIMIZE PERFORMANCE模式

1.设置主库为force logging
SQL> alter database force logging;

2.设置主库为归档模式:
SQL> archive log list
SQL> shutdown immediate
SQL> startup mount
SQL> alter database archivelog;
SQL> archive log list

3.检查主机是否有口令文件,如没有需建立
orapwd file='/oracle/product/10.2.0/dbs/orapworcl' password=sys entries=5

orapworcl文件名不能错了

4.为主数据库添加"备用联机日志文件"
SQL> alter database add standby logfile group 4
('/oracle/oradata/orcl/redo04.log') size 50m;

SQL> alter database add standby logfile group 5
('/oracle/oradata/orcl/redo05.log') size 50m;

SQL> alter database add standby logfile group 6
('/oracle/oradata/orcl/redo06.log') size 50m;

SQL> alter database add standby logfile group 7
('/oracle/oradata/orcl/redo07.log') size 50m;

5.修改主库参数文件
SQL> create pfile='/oracle/admin/orcl/pfile/init.ora' from spfile;

orcl.__db_cache_size=100663296
orcl.__java_pool_size=4194304
orcl.__large_pool_size=4194304
orcl.__shared_pool_size=54525952
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
*.log_archive_format='%T%S%r.ARC'
*.log_archive_max_processes=3
*.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'

#add below parameter for standy database
*.DB_UNIQUE_NAME='10gpri'
*.log_archive_config='DG_CONFIG=(10gpri,10gstandby)'
*.log_archive_dest_1='location=/oracle/oradata/orcl/archive/ VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=10gpri'
*.log_archive_dest_2='SERVICE=10gstandby arch ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=10gstandby'
*.STANDBY_FILE_MANAGEMENT=AUTO
*.LOG_ARCHIVE_DEST_STATE_1=ENABLE
*.LOG_ARCHIVE_DEST_STATE_2=ENABLE
*.FAL_SERVER='10gstandby'
*.FAL_CLIENT='10gpri'

6.主库用PFILE建立SPFILE
[oracle@host160 pfile]$ sqlplus '/ as sysdba'
SQL> create spfile from pfile='/oracle/admin/orcl/pfile/init.ora';

7.建立备用库的控制文件
SQL> alter database create standby controlfile as '/tmp/standby_ctl01.ctl';

8.配置主数据库listener及tnsnames
[oracle@host160 admin]$ cat listener.ora

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = orcl)
(ORACLE_HOME = /oracle/product/10.2.0)
(SID_NAME = orcl)
)
)

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = host160)(PORT = 1521))
)
)

#加1522端口供以后做switchover
SID_LIST_LISTENER1 =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = orcl)
(ORACLE_HOME = /oracle/product/10.2.0)
(SID_NAME = orcl)
)
)

LISTENER1 =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = host160)(PORT = 1522))
)
)

[oracle@host160 admin]$ cat tnsnames.ora
#1521和1522端口都能连上主机和备机,这样在做switchover时就不需要改这里的设置了
10gpri =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.17.61.161)(PORT = 1522))
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.17.61.160)(PORT = 1522))
)
(CONNECT_DATA =
(SID = orcl)
)
)


10gstandby =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.17.61.160)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.17.61.161)(PORT = 1521))
)
(CONNECT_DATA =
(SID = orcl)
)
)

9.复制文件到备机
[oracle@host161 ~]cd /oracle/oradata/orcl
[oracle@host161 orcl]$rcp host160:/oracle/oradata/orcl/*.dbf .
[oracle@host161 orcl]$rcp host160:/tmp/standby_ctl01.ctl .
[oracle@host161 orcl]$mv standby_ctl01.ctl control01.ctl
[oracle@host161 orcl]$cp control01.ctl control02.ctl
[oracle@host161 orcl]$cp control01.ctl control03.ctl

redelog文件也需要复制到备机

10.复制并修改备机的参数文件
[oracle@host161 ~]cd /oracle/admin/orcl/pfile
[oracle@host161 pfile]$rcp host160:/oracle/admin/orcl/pfile/init.ora .

修改为如下:
orcl.__db_cache_size=100663296
orcl.__java_pool_size=4194304
orcl.__large_pool_size=4194304
orcl.__shared_pool_size=54525952
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
*.log_archive_format='%T%S%r.ARC'
*.log_archive_max_processes=3
*.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'

*.DB_UNIQUE_NAME='10gstandby'
*.log_archive_config='DG_CONFIG=(10gpri,10gstandby)'
*.log_archive_dest_1='location=/oracle/oradata/orcl/archive/ VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=10gstandby'
*.log_archive_dest_2='SERVICE=10gpri arch ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=10gpri'
*.STANDBY_FILE_MANAGEMENT=AUTO
*.LOG_ARCHIVE_DEST_STATE_1=ENABLE
*.LOG_ARCHIVE_DEST_STATE_2=ENABLE
*.FAL_SERVER='10gpri'
*.FAL_CLIENT='10gstandby'

11.生成备用库密码文件
orapwd file='/oracle/product/10.2.0/dbs/orapworcl' password=sys entries=5

12.修改备机的listener及tnsnames
[oracle@host161 admin]$ cat listener.ora
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = orcl)
(ORACLE_HOME = /oracle/product/10.2.0)
(SID_NAME = orcl)
)
)

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = host161)(PORT = 1521))
)
)

#加一个1522的端口供以后做switchover
SID_LIST_LISTENER1 =
(SID_LIST =
)
(SID_DESC =
(GLOBAL_DBNAME = orcl)
(ORACLE_HOME = /oracle/product/10.2.0)
(SID_NAME = orcl)
)
)

LISTENER1 =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = host161)(PORT = 1522))
)
)


[oracle@host161 admin]$ cat tnsnames.ora
10gpri =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.17.61.161)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.17.61.160)(PORT = 1521))
)
(CONNECT_DATA =
(SID = orcl)
)
)


10gstandby =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.17.61.160)(PORT = 1522))
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.17.61.161)(PORT = 1522))
)
(CONNECT_DATA =
(SID = orcl)
)
)

13.测试主备之间网络连通
[oracle@host160 admin]$ lsnrctl start
[oracle@host160 admin]$ tnsping 10gstandby
[oracle@host161 admin]$ lsnrctl start
[oracle@host161 admin]$ tnsping 10gpri

14.打开备库
SQL> startup mount pfile='/oracle/admin/orcl/pfile/init.ora';
SQL> create spfile from pfile='/oracle/admin/orcl/pfile/init.ora';
SQL> alter database recover managed standby database disconnect from session;

15.打开主库
SQL> startup

16.测试是否OK
主库:
SQL> alter system switch logfile;

从库:
SQL> select FIRST_TIME,NEXT_TIME, APPLIED,SEQUENCE# from v$archived_log order by SEQUENCE#;

FIRST_TIME NEXT_TIME APP SEQUENCE#
------------------- ------------------- --- ----------
2007-10-16 11:39:33 2007-10-16 14:16:39 YES 5
2007-10-16 14:16:39 2007-10-16 14:21:06 YES 6


二、转换模式由MAXIMIZE PERFORMANCE到MAXIMIZE PROTECTION

1.在备机上:
SQL> shutdown immediate;
SQL> startup mount;
SQL> alter database add standby logfile group 4
2 ('/oracle/oradata/orcl/redo04.log') size 50m;

SQL> alter database add standby logfile group 5
2 ('/oracle/oradata/orcl/redo05.log') size 50m;

SQL> alter database add standby logfile group 6
2 ('/oracle/oradata/orcl/redo06.log') size 50m;

SQL> alter database add standby logfile group 7
2 ('/oracle/oradata/orcl/redo07.log') size 50m;

2.在主机上
SQL> shutdown immediate;

SQL> startup mount;

SQL> alter system set log_archive_dest_2='SERVICE=10gstandby LGWR SYNC AFFIRM VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=10gstandby';

SQL>alter database set standby database to maximize protection;

SQL>alter database open;

SQL> select protection_mode from v$database;

PROTECTION_MODE
--------------------
MAXIMUM PROTECTION


3.在备机上
SQL> recover managed standby database disconnect from session;

4.测试一下:
在主机上执行SQL> alte system switch logfile;
在备机上查看v$standby_log视图
SQL> select GROUP#,THREAD#,SEQUENCE#,USED,ARCHIVED,STATUS from v$standby_log;

GROUP# THREAD# SEQUENCE# USED ARC STATUS
---------- ---------- ---------- ---------- --- ----------
4 1 36 59392 YES ACTIVE
5 1 0 512 NO UNASSIGNED
6 0 0 512 YES UNASSIGNED
7 0 0 512 YES UNASSIGNED

MAXIMIZE PROTECTION和MAXIMIZE AVAILABILITY模式下,备机不能先关闭,会出现如下错误
SQL> shutdown immediate;
ORA-01154: database busy. Open, close, mount, and dismount not allowed now

正确的开关机顺序是:
关机:先关主机,后关备机
开机:先开备机,后开主机

三、主库和备库的switchover.

注意:Swithover时只能先从Primary切到Standby,再从Standby切到Primary.

1.准备原主库是否有standby redo log,上面1.4已建好了。

2.准备主库和备库的参数文件,最好就是将两个数据库的参数文件互换,在两台机器上同时保留主库和备库的参数文件。
[oracle@host161 /]$ cd /oracle/admin/orcl/pfile
[oracle@host161 pfile]rcp host160:/oracle/admin/orcl/pfile/init.ora initprimary.ora
[oracle@host161 pfile]rcp init.ora host160:/oracle/admin/orcl/pfile/initstandby.ora

3.从primary 切换到standby
connect / as sysdba
SQL> alter database commit to switchover to physical standby with session shutdown;
SQL> shutdown
SQL> startup mount pfile=/oracle/admin/orcl/pfile/initstandby.ora;
SQL> recover managed standby database disconnect;

4.启动新备库端的Listener (port=1522)
[oracle@host160 admin]$ lsnrctl stop
[oracle@host160 admin]$ lsnrctl start LISTENER1

5.从standby 切换到primary
connect / as sysdba
SQL> alter database commit to switchover to primary;
SQL> shutdown
SQL> startup pfile=/oracle/admin/orcl/pfile/initprimary.ora

6.启动新主库端的Listener (port=1522)
[oracle@host161 admin]$ lsnrctl stop
[oracle@host161 admin]$ lsnrctl start LISTENER1

7.OK

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