很高兴又来和大家分享技术知识了，本次分享的技术是11G RAC环境如何配置ADG,ADG是Oracle 11G 的新特性。

1.在主库，备库上配置tnsnames.

1)在主库上tnsnames.ora文件中添加

racdb =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST = node1-vip)(PORT = 1521))

(ADDRESS = (PROTOCOL = TCP)(HOST = node2-vip)(PORT = 1521))

)

(CONNECT_DATA =

(SERVER = DEDICATED)

(SERVICE_NAME = devdb)

)

)

racdbdg =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST = dgnode1-vip)(PORT = 1521))

(ADDRESS = (PROTOCOL = TCP)(HOST = dgnode2-vip)(PORT = 1521))

)

(CONNECT_DATA =

(SERVER = DEDICATED)

(SERVICE_NAME = devdb)

)

)

2)在备库上tnsnames.ora文件中添加

racdb =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST = node1-vip)(PORT = 1521))

(ADDRESS = (PROTOCOL = TCP)(HOST = node2-vip)(PORT = 1521))

)

(CONNECT_DATA =

(SERVER = DEDICATED)

(SERVICE_NAME = devdb)

)

)

racdbdg =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST = dgnode1-vip)(PORT = 1521))

(ADDRESS = (PROTOCOL = TCP)(HOST = dgnode2-vip)(PORT = 1521))

)

(CONNECT_DATA =

(SERVER = DEDICATED)

(SERVICE_NAME = devdb)

)

)

2.修改主库的参数配置文件

SQL>ALTER SYSTEM SET DB_UNIQUE_NAME=devdb scope=spfile;

SQL>ALTER SYSTEM SET LOG_ARCHIVE_CONFIG='DG_CONFIG=(devdb,devdb_adg)' scope=both;

SQL>ALTER SYSTEM SET LOG_ARCHIVE_DEST_1='LOCATION=+ARCH/DEVDB/ARCHIVELOG VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=DEVDB' SCOPE=BOTH;

SQL>ALTER SYSTEM SET LOG_ARCHIVE_DEST_2='SERVICE=racdbdg LGWR SYNC AFFIRM  VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=DEVDB_ADG';

SQL>ALTER SYSTEM SET SET STANDBY_FILE_MANAGEMNET='AUTO' SID='*' SCOPE=BOTH;

SQL>ALTER SYSTEM SET FAL_CLIENT='racdb';

SQL>ALTER SYSTEM SET FAL_SERVER='racdbdg';

SQL>ALTER SYSTEM SET DB_FILE_NAME_CONVERT='+DATA','+DATA' SCOPE=SPFILE;

SQL>ALTER SYSTEM SET LOG_FILE_NAME_CONVERT='+DATA','+DATA' SCOPE=SPFILE;

3.修改备库上的参数配置文件

SQL>ALTER SYSTEM SET DB_UNIQUE_NAME=devdb_adg scope=spfile;

SQL>ALTER SYSTEM SET LOG_ARCHIVE_CONFILE='DG_CONFIG=(devdb,devdb_adg)' scope=both;

SQL>ALTER SYSTEM SET LOG_ARCHIVE_DEST_1='LOCATION=+ARCH/DEVDB/ARCHIVELOG VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=DEVDB_ADG' SCOPE=BOTH;

SQL>ALTER SYSTEM SET LOG_ARCHIVE_DEST_2='SERVICE=racdb LGWR SYNC AFFIRM  VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=DEVDB';

SQL>ALTER SYSTEM SET SET STANDBY_FILE_MANAGEMNET='AUTO' SID='*' SCOPE=BOTH;

SQL>ALTER SYSTEM SET FAL_CLIENT='racdbdg';

SQL>ALTER SYSTEM SET FAL_SERVER='racdb';

SQL>ALTER SYSTEM SET DB_FILE_NAME_CONVERT='+DATA','+DATA' SCOPE=SPFILE;

SQL>ALTER SYSTEM SET LOG_FILE_NAME_CONVERT='+DATA','+DATA' SCOPE=SPFILE;

4.在主库上增加standby redo log

SQL>alter database add standby logfile thread 1 group 6 '+DATA' SIZE 512M;

SQL>ALTER DATABASE ADD STANDBY LOGFILE THREAD 1 GROUP 7 '+DATA' SIZE 512M;

SQL>ALTER DATABASE ADD STANDBY LOGFILE THREAD 2 GROUP 8 '+ADTA' SIZE 512M;

SQL>ALTER DATABASE ADD STANDBY LOGFILE THREAD 2 GROUP 9 '+DATA' SIZE 512M;

5.修改主库强制日志模式。

SQL>ALTER DATABASE FORCE LOGGING;

6.使用RMAN备份主库

rman target /

run{

configure device type disk;

backup database format '/backup/devdb_%U';

BACKUP CURRENT CONTROLFILE FORMAT '/backup/ctl_%U';

}

7.在主库上创建standby controlfile

SQL> ALTER DATABASE CREATE STANDBY CONTROLFILE AS '/BACKUP/STB_CTL';

8.在备库上还原standby controlfile

ASMCMD>cp /backup/stb_ctl control01.ctl

ASMCMD>CP /BACKUP/STB_CTL control02.ctl

9.还原备库

SQL>STARTUP MOUNT;

RMAN TARGET / NOCATLOG

RUN{

CONFIGURE DEVICE TYPE DISK;

RESOTRE DATABASE;

}

10.修改备库文件名

RMAN>CATALOG START WITH '+DATA/DEVDB/DATAFILE/'

RMAN>SWITCH DATABASE TO COPY;

11.生成备库的 redo file，我们采用清理redo file的方式。

SQL>SELECT * FROM V$LOG;

SQL>ALTER DATABASE CLEARL LOGFILE GROUP 1;

......

--清理standby redo

SQL>SELECT * FROM V$STANDBY_LOG;

SQL>ALTER DATABASE CLEARL LOGFILE GROUP 6;

......

12.开启备库实时应用模式

SQL>ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT FROM SESSION;

13.备库注册DB服务，注意要使用oracle用

srvctl  add database -d devdb_adg -o $ORACLE_HOME

srvctl  add instance -d devdb_adg -i devdb1 -n devdbdg1

srvctl  add instance -d devdb_adg -i devdb2 -n devdbdg2

srvctl  modify database -d devdb_adg -a DATA,ARCH

2014.07.30 13:03share you knowledge with the world.