data guard 参考

一、 环境配置

primary：

IP：192.168.0.120

CPU：2个Intel(R) Xeon(TM) CPU 2.80GHz （HT）

Mem：2G

Swap：4G

Disk：130G

DB：Oracle Database 10g Enterprise Edition Release 10.1.0.3.0 - Prod OS：Linux oracle 2.4.21-20.ELsmp #1 SMP

standby：

IP：192.168.0.101

Cup：2个Intel(R) Xeon(TM) CPU 2.40GHz （HT）

Mem：2G

Swap：2G

Disk：66G

DB：Oracle Database 10g Enterprise Edition Release 10.1.0.3.0 - Prod OS：Linux boss-3 2.4.21-15.ELsmp #1 SMP

Primary为正在使用的生产数据库，standby安装oracle软件，但不建立数据库。

二、 建立物理备用数据库

1． 准备主库的oracle环境：

编辑oracle用户的$HOME/.bash_profile文件，oracle相关环境变量如下： ORACLE_BASE=/u01/app/oracle; export ORACLE_BASE

ORACLE_SID=BOSS; export ORACLE_SID

ORACLE_HOME=$ORACLE_BASE/product/10.1.0/Db_1; export ORACLE_HOME export PATH=$ORACLE_HOME/bin:$PATH:

export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/usr/lib

DISPLAY=10.1.9.59:0.0; export DISPLAY

NLS_LANG=american_america.ZHS16CGB231280; export NLS_LANG

2． 修改主库为归档模式

建立归档目录：

mkdir -p /u02/oradata/BOSS/arch

修改归档模式：

archive log list;

create pfile from spfile;

编辑$ORACLE_HOME/dbs/initBOSS.ora

添加下面一行

log_archive_dest_1='location=/u02/oradata/BOSS/arch'

sqlplus /nolog

conn sys as sysdba

shutdown immediate;

create spfile from pfile;

startup nomount;

alter database mount;

alter database archivelog;

alter database open;

3. 对主数据库做一次完整热备份，获得备用数据库数据

RMAN>connect target

RMAN> backup database format='/home/oracle/%U_%s.bak';

RMAN> sql "Alter System Archive Log Current";

RMAN> Backup filesperset 10 ArchiveLog all format='/home/oracle/%U_%s.bak';

cd /home/oracle

scp *.bak 192.168.0.101:/home/oracle/

4. 在standby服务器准备环境与primary相同

编辑oracle用户的$HOME/.bash_profile文件，oracle相关环境变量如下：

ORACLE_BASE=/u01/app/oracle; export ORACLE_BASE

ORACLE_SID=BOSS; export ORACLE_SID

ORACLE_HOME=$ORACLE_BASE/product/10.1.0/Db_1; export ORACLE_HOME

export PATH=$ORACLE_HOME/bin:$PATH:

export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/usr/lib

DISPLAY=10.1.9.59:0.0; export DISPLAY

NLS_LANG=american_america.ZHS16CGB231280; export NLS_LANG

5. 准备相应目录，如日志文件路径，归档路径，参数文件路径，数据文件准备存放路径等 $mkdir -p /u02/oradata/BOSS

$mkdir -p /u02/oradata/BOSS /arch

$mkdir -p $ORACLE_BASE/admin/BOSS

$mkdir -p $ORACLE_BASE/admin/BOSS/bdump

$mkdir -p $ORACLE_BASE/admin/BOSS/cdump

$mkdir -p $ORACLE_BASE/admin/BOSS/udump

6. 建立备用数据库参数文件

主库的参数如下：

BOSS.__db_cache_size=339738624

BOSS.__java_pool_size=33554432

BOSS.__large_pool_size=4194304

BOSS.__shared_pool_size=218103808

*.background_dump_dest='/u01/app/oracle/admin/BOSS/bdump'

*.compatible='10.1.0.2.0'

*.control_files='/u02/oradata/BOSS/control01.ctl','/u02/oradata/BOSS/control02.ctl','/u02/oradata/BOSS/control03.ctl'

*.core_dump_dest='/u01/app/oracle/admin/BOSS/cdump'

*.db_block_size=8192

*.db_domain=''

*.db_file_multiblock_read_count=16

*.db_name='BOSS'

*.db_recovery_file_dest='/u01/app/oracle/flash_recovery_area'

*.db_recovery_file_dest_size=2147483648

*.db_writer_processes=4

*.dispatchers='(PROTOCOL=TCP) (SERVICE=BOSSXDB)'

*.global_names=FALSE

*.java_pool_size=32M

*.job_queue_processes=10

*.license_max_users=250

*.log_archive_dest_1='location=/u02/oradata/BOSS/arch'

*.log_archive_dest_2='SERVICE=dbstandby LGWR'

*.open_cursors=300

*.pga_aggregate_target=199229440

*.processes=150

*.remote_login_passwordfile='EXCLUSIVE'

*.sga_target=598736896

*.undo_management='AUTO'

*.undo_tablespace='UNDOTBS1'

*.user_dump_dest='/u01/app/oracle/admin/BOSS/udump'

*.utl_file_dir='/u01/app/oracle/admin/BOSS/bdump'

与主数据库不一样的参数如下：

#standby database parameter

standby_file_management=AUTO

remote_archive_enable=TRUE

standby_archive_dest='/u02/oradata/BOSS/arch'

fal_server='DBPRIMARY'

fal_client='DBSTANDBY'

7. 从主服务器拷贝口令文件到备用服务器

$cd $ORACLE_HOME/dbs/

$scp orapwBOSS 192.168.0.101: /u01/app/oracle/product/10.1.0/Db_1/dbs

8. 配置网络连接

修改主服务器的

/u01/app/oracle/product/10.1.0/Db_1/network/admin/listener.ora文件如下： LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))

)

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST = oracle)(PORT = 1521))

)

)

)

SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(SID_NAME = PLSExtProc)

(ORACLE_HOME = /u01/app/oracle/product/10.1.0/Db_1)

(PROGRAM = extproc)

)

(SID_DESC =

(GLOBAL_DBNAME = BOSS)

(ORACLE_HOME = /u01/app/oracle/product/10.1.0/Db_1)

(SID_NAME = BOSS)

)

)

LISTENERDB =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.120)(PORT = 1522)) )

)

)

SID_LIST_LISTENERDB =

(SID_LIST =

(SID_DESC =

(GLOBAL_DBNAME = BOSS)

(ORACLE_HOME = /u01/app/oracle/product/10.1.0/Db_1)

(SID_NAME = BOSS)

)

)

$lsnrctl start

$lsnrctl status 查看监听状态.

修改主服务器的

/u01/app/oracle/product/10.1.0/Db_1/network/admin/tnsnames.ora文件如下： BOSS =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = oracle)(PORT = 1521))

(CONNECT_DATA =

(SERVER = DEDICATED)

(SERVICE_NAME = BOSS)

)

)

EXTPROC_CONNECTION_DATA =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))

)

(CONNECT_DATA =

(SID = PLSExtProc)

(PRESENTATION = RO)

)

)

DBPRIMARY =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.120)(PORT = 1521)) )

(CONNECT_DATA =

(SERVER = DEDICATED)

(SERVICE_NAME = BOSS)

)

)

DBSTANDBY =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.101)(PORT = 1522)) (CONNECT_DATA =

(SERVER = DEDICATED)

(SERVICE_NAME = BOSS)

)

)

修改备用服务器的

/u01/app/oracle/product/10.1.0/Db_1/network/admin/listener.ora文件如下： LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.101)(PORT = 1521)) )

)

)

SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(GLOBAL_DBNAME = BOSS)

(ORACLE_HOME = /u01/app/oracle/product/10.1.0/Db_1)

(SID_NAME = BOSS)

)

)