data guard 测试----安装笔录（有点旧）

Centos4.4+oracle10.1

 

2008年02月24日 星期日 00:02

oracle　安装：

vi /etc/sysctl.conf

kernel.shmall = 2097152
kernel.shmmax = 2147483648
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
fs.file-max = 65536
net.ipv4.ip_local_port_range = 1024 65000
net.core.rmem_default=262144
net.core.rmem_max=262144
net.core.wmem_default=262144
net.core.wmem_max=262144

 

vi /etc/security/limits.conf
* soft nproc 2047
* hard nproc 16384
* soft nofile 1024
* hard nofile 65536

vi /etc/pam.d/login
session required /lib/security/pam_limits.so

安装软件包：

yum -y install compat-libstdc++-33.i386

yum -y install compat-gcc-32.i386

yum -y install compat-gcc-32-c++.i386

yum -y install libaio.i386

usermod -g oinstall -G dba oracle
or:

useradd -g oinstall -G dba oracle

mkdir -p /u01/app/oracle
mkdir /u01/oradata

chown -R oracle:oinstall /u01/app/oracle /u01/oradata
chmod -R 775 /u01/app/oracle /u01/oradata

vi .bash_profile （oracle用户）

# Oracle Settings

ORACLE_SID=dgdemo;
ORACLE_BASE=/u01;
ORACLE_HOME=/u01/app/oracle;

export ORACLE_SID ORACLE_BASE ORACLE_HOME

PATH=/usr/sbin:$PATH;
export PATH
PATH=$ORACLE_HOME/bin:$PATH;
export PATH

 

 

vi /etc/profile
add:

if [ $USER = "oracle" ]; then
        if [ $SHELL = "/bin/ksh" ]; then
              ulimit -p 16384
              ulimit -n 65536
        else
              ulimit -u 16384 -n 65536
        fi
fi

 

create database:
        dbca
   
配制网络连接：
　　netcn:
   

lsnode1
dgdemo
dgdemo
lsnode2

data guard install:

参考：http://download.oracle.com/docs/cd/B14117_01/server.101/b10823/create_ps.htm#63563

 

 

 

3.1.1 Enable Forced Logging

SQL> ALTER DATABASE FORCE LOGGING;

建立参数文件：

create pfile='/u01/app/oracle/dbs/initdgdemo.ora' from spfile ;

修改：
add:

DB_UNIQUE_NAME=uqn_node1
LOG_ARCHIVE_CONFIG='DG_CONFIG=(uqn_node1,uqn_node2)'
LOG_ARCHIVE_DEST_2='SERVICE=lsnode2 VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE)   DB_UNIQUE_NAME=uqn_node2'
LOG_ARCHIVE_DEST_STATE_1=ENABLE
LOG_ARCHIVE_DEST_STATE_2=ENABLE
FAL_SERVER=lsnode2
FAL_CLIENT=lsnode1
STANDBY_FILE_MANAGEMENT=AUTO

 

 

3.1.4 Enable Archiving(if noarchive )

SQL> SHUTDOWN IMMEDIATE;
SQL> STARTUP MOUNT;
SQL> ALTER DATABASE ARCHIVELOG;
SQL> ALTER DATABASE OPEN;

3.2.2 Create a Control File for the Standby Database

SQL> shutdown immediate
SQL> STARTUP MOUNT;
SQL> ALTER DATABASE CREATE STANDBY CONTROLFILE AS '/u01/oradata/wilson.ctl';
SQL> alter database open;

创建新的spfile;

create spfile='/u01/app/oracle/dbs/spfiledgdemo.ora' from pfile='/u01/app/oracle/dbs/initdgdemo.ora'

用应新spfile:

SQL> shutdown immediate;

SQL> startup open;

SQL> show parameter spfile;

3.2.4 Copy Files from the Primary System to the Standby System

COPY文件：

cd /u01/app/oracle/dbs
cp initdgdemo.ora /u01/oradata/ 　 　(复制参数件到/data/oradata目录下　，方便以后的ＣＰ)
cp orapwdgdemo /u01/oradata/ 　 　　(复制密码件到/data/oradata目录下)

cd /u01

scp -r admin oradata node2:/u01

3.2.3 Prepare an Initialization Parameter File for the Standby Database (以下是在node2 操作)

cd /u01/oradata/dgdemo/

替换控制文件：

rm control0*
cp ../wilson.ctl control01.ctl
cp ../wilson.ctl control02.ctl
cp ../wilson.ctl control03.ctl

替换参数文件和口令件：（其实在node2中就没有这两个文件）

cd /u01/app/oracle/dbs
cp /u01/oradata/initdgdemo.ora .
cp /u01/oradata/orapwdgdemo .

修改参数文件initdgdemo.ora ：(就是把1与2对调)

DB_UNIQUE_NAME=uqn_node2
LOG_ARCHIVE_DEST_2='SERVICE=lsnode1 VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE)   DB_UNIQUE_NAME=uqn_node1'
FAL_SERVER=lsnode1
FAL_CLIENT=lsnode2

 

Step 3 Configure listeners for the primary and standby databases(两台机子)

% lsnrctl stop
% lsnrctl start

 

3.2.6 Start the Physical Standby Database
　
先启动主库：
SQL> startup open;

在node2上测试：
sqlplus system/oracle@lsnode1

Step 1 Start the physical standby database
SQL> startup mount;

Step 3 Start Redo Apply.(根据主库的redo来更新从库的数据文件)

SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION;

--------------------------------------ＥＮＤ-----------------------------------------------------------------------------------------------

继：

8.2.2 Opening a Physical Standby Database for Read-Only Access

To open a standby database for read-only access when it is currently performing Redo Apply or real-time apply:
Cancel Redo Apply or real-time apply:

SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;

Open the database for read-only access:
SQL> ALTER DATABASE OPEN;

在Read-Only 状态不能收到主库的数据，主与从库不同步，从新让从库同步主库用以下方法：

To change the standby database from being open for read-only access to performing Redo Apply:

SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION;

 

 

 

 

测试部分：

Step 1 Identify the existing archived redo log files (node2):

SQL> SELECT SEQUENCE#, FIRST_TIME, NEXT_TIME   FROM V$ARCHIVED_LOG ORDER BY SEQUENCE#;

Step 2 Force a log switch to archive the current online redo log file.(node1)

SQL> ALTER SYSTEM ARCHIVE LOG CURRENT;

 

SELECT SEQUENCE#,APPLIED FROM V$ARCHIVED_LOG ORDER BY SEQUENCE#;

测试:在主库上建一个表，看是否在从库上会自动建同样的表：

node1:
SQL> create table comtv(id integer, name char(10));
SQL> insert into comtv values(101,'zxw');
SQL> insert into comtv values(102,'lyq');
SQL> commit;
SQL> ALTER SYSTEM SWITCH LOGFILE;

node2:
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;
SQL> alter database open;
SQL> select * from comtv;

重新同步：
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION;