data guard搭建
搭建data guard
主库：hostname（TESTDB2) db_name （ DG2） db_unique_name （DG2)
备库：hostname（TESTDB1) db_name（DG1) db_unique_name（DG1)
tnsnames.ora内容，主库和备库一样
DG2 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.80.132)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = DG2)
)
)
DG1 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.80.131)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = DG1)
)
)
监听各自配置各自的
备库
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.80.131)(PORT = 1521))
)
)
主库
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.80.132)(PORT = 1521))
)
)
确认主库是归档模式
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence 72
Next log sequence to archive 74
Current log sequence 74
如果不是归档模式使用以下步骤开启归档
SQL> SHUTDOWN IMMEDIATE;
SQL> STARTUP MOUNT;
SQL> ALTER DATABASE ARCHIVELOG;
SQL> ALTER DATABASE OPEN;
确认是否启用force logging
SQL> select force_logging from v$database;
FOR
---
YES
没有启用的话启用
SQL> alter database force logging;
关闭主数据库，起到mount状态添加standby logfile，添加的大小要与主库的logfile大小保持一致，数量要比主库至少多一组
注：查看主库logfile日志大小
SQL> select group#,BYTES/1024/1024 "M",members from v$log;
GROUP# M MEMBERS
---------- ---------- ----------
1 50 1
2 50 1
3 50 1
我这里没有添加standby logfile，添加的话按照下面的语句添加进至少四组
SQL>alter database add logfile group 4('/u01/app/oracle/oradata/DG2/disk1/redo04.log') size 50m;
SQL>alter database add logfile group 5('/u01/app/oracle/oradata/DG2/disk1/redo05.log') size 50m;
SQL>alter database add logfile group 6('/u01/app/oracle/oradata/DG2/disk1/redo06.log') size 50m;
SQL>alter database add logfile group 7('/u01/app/oracle/oradata/DG2/disk1/redo07.log') size 50m;
主库生成pfile参数文件
SQL>create pfile from spfile;
修改pfile文件，其余内容不变增加如下内容
DB_NAME=DG2
DB_UNIQUE_NAME=DG2
LOG_ARCHIVE_CONFIG='DG_CONFIG=(DG2,DG1)'
LOG_ARCHIVE_DEST_1=
'LOCATION=USE_DB_RECOVERY_FILE_DEST
VALID_FOR=(ALL_LOGFILES,ALL_ROLES)
DB_UNIQUE_NAME=DG2'
LOG_ARCHIVE_DEST_2=
'SERVICE=DG1 ASYNC
VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE)
DB_UNIQUE_NAME=DG1'
LOG_ARCHIVE_DEST_STATE_1=ENABLE
LOG_ARCHIVE_DEST_STATE_2=ENABLE
REMOTE_LOGIN_PASSWORDFILE=EXCLUSIVE
LOG_ARCHIVE_FORMAT=%t_%s_%r.arc
FAL_SERVER=DG1
DB_FILE_NAME_CONVERT='DG1','DG2'
LOG_FILE_NAME_CONVERT='DG1','DG2'
STANDBY_FILE_MANAGEMENT=AUTO
关闭数据库生成spfile
SQL>create spfile from pfile;
将主库pfile和orapwDG2口令文件传到备库
关闭主库，将数据文件tar包，然后传到备库解压到DG1目录下，然后删除controlfile
启动主数据到mount生成standby controlfile
SQL>alter database create standby controlfile as '/home/oracle/control01.ctl';
将controlfile传到备库相应的控制文件位置
[oracle@TESTDB2 ~]$ scp control01.ctl [email protected]:/u01/app/oracle/oradata/DG1/control01.ctl
[oracle@TESTDB2 ~]$ scp control01.ctl [email protected]:/u01/app/oracle/fast_recovery_area/DG1/control02.ctl
SQL>alter database open;
修改备库的参数文件，要建立相应的路径
将DG2改为DG1，db_name不要改
DG1.__db_cache_size=339738624
DG1.__java_pool_size=4194304
DG1.__large_pool_size=4194304
DG1.__oracle_base='/u01/app/oracle'#ORACLE_BASE set from environment
DG1.__pga_aggregate_target=343932928
DG1.__sga_target=507510784
DG1.__shared_io_pool_size=0
DG1.__shared_pool_size=146800640
DG1.__streams_pool_size=4194304
*.audit_file_dest='/u01/app/oracle/admin/DG1/adump'
*.audit_trail='db'
*.compatible='11.2.0.0.0'
*.control_files='/u01/app/oracle/oradata/DG1/control01.ctl','/u01/app/oracle/fast_recovery_area/DG1/control02.ctl'
*.db_block_size=8192
*.db_domain=''
*.db_name='DG1'（可以不要的，留着不影响）
*.db_recovery_file_dest='/u01/app/oracle/fast_recovery_area'
*.db_recovery_file_dest_size=5218762752
*.diagnostic_dest='/u01/app/oracle'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=DG1XDB)'
*.memory_target=848297984
*.open_cursors=300
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.undo_tablespace='UNDOTBS1'
DB_NAME=DG2（不要改的）
DB_UNIQUE_NAME=DG1
LOG_ARCHIVE_CONFIG='DG_CONFIG=(DG1,DG2)'
LOG_ARCHIVE_DEST_1=
'LOCATION=USE_DB_RECOVERY_FILE_DEST
VALID_FOR=(ALL_LOGFILES,ALL_ROLES)
DB_UNIQUE_NAME=DG1'
LOG_ARCHIVE_DEST_2=
'SERVICE=DG2 ASYNC
VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE)
DB_UNIQUE_NAME=DG2'
LOG_ARCHIVE_DEST_STATE_1=ENABLE
LOG_ARCHIVE_DEST_STATE_2=ENABLE
REMOTE_LOGIN_PASSWORDFILE=EXCLUSIVE
LOG_ARCHIVE_FORMAT=%t_%s_%r.arc
FAL_SERVER=DG2
DB_FILE_NAME_CONVERT='DG2','DG1'
LOG_FILE_NAME_CONVERT='DG2','DG1'
STANDBY_FILE_MANAGEMENT=AUTO
启动备库
[oracle@TESTDB1 dbs]$ export ORACLE_SID=DG1
SQL> startup mount;
SQL> alter database mount standby database ;
SQL> alter database recover managed standby database disconnect from session;
（主库）SQL> select SEQUENCE#,ARCHIVED from v$archived_log;
SEQUENCE# ARC
---------- ---
68 YES
69 YES
70 YES
70 YES
71 YES
71 YES
（备库）SQL> select SEQUENCE#,ARCHIVED from v$archived_log;
SEQUENCE# ARC
---------- ---
70 YES
71 YES
来自 “ ITPUB博客 ” ，链接：http://blog.itpub.net/30166973/viewspace-1694068/，如需转载，请注明出处，否则将追究法律责任。
转载于:http://blog.itpub.net/30166973/viewspace-1694068/