1. Oracle RAC服务端/etc/hosts部分内容如下
#public ip
172.16.7.112 jyracdb1
172.16.7.114 jyracdb2
#virtual ip
172.16.7.113 jyracdb1-vip
172.16.7.115 jyracdb2-vip
#scan ip(11g RAC 新特性)
172.16.7.120 jyracdb-scan
2. 查看服务端的local_listener和remote_listener参数
2.1 节点1 Oracle用户登录sqlplus / as sysdba
SQL> show parameter listener
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
listener_networks string
local_listener string (ADDRESS=(PROTOCOL=TCP)(HOST=
172.16.7.113)(PORT=1521))
remote_listener string jyracdb-scan:1521
SQL>
2.2 节点2 Oracle用户登录sqlplus / as sysdba
SQL> show parameter listener
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
listener_networks string
local_listener string (ADDRESS=(PROTOCOL=TCP)(HOST=
172.16.7.115)(PORT=1521))
remote_listener string jyracdb-scan:1521
SQL>
3. 客户端tnsnames.ora配置参考
3.1 10g的版本，监听配置方法如下
3.2 11g的版本，监听配置方法如下
3.3 业务分割，连接到实例1的业务
3.4 业务分割，连接到实例2的业务
4. 测试failover功能
SQL*Plus: Release 11.2.0.1.0 Production on Tue Jul 28 11:04:13 2015
Copyright (c) 1982, 2010, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management,
OLAP,
Data Mining and Real Application Testing options
SQL> select instance_name, status from v$instance;
SQL> select instance_name, status from v$instance;
select instance_name, status from v$instance
*
ERROR at line 1:
ORA-25408: can not safely replay call
SQL> select instance_name, status from v$instance;