在Oracle10g RAC的安装过程中，网络的设置需要谨慎，也极其重要。

以下将我的Oracle10g RAC环境的网络配置列举一下，供参考。

1.hosts文件的设置

由于RAC要设置多个地址，所以需要准备好网络环境，我的hosts文件设置如下：

#

# Internet host table

#

127.0.0.1 localhost

172.16.19.11 db210-rac1 db210-rac1.hurray.com.cn loghost

172.16.19.211 db210-rac1vip db210-rac1vip.hurray.com.cn

192.168.18.11 db210-rac1priv db210-rac1priv.hurray.com.cn

192.168.19.11 db210-rac1hb db210-rac1hb.hurray.com.cn

172.16.19.12 db210-rac2 db210-rac2.hurray.com.cn

172.16.19.212 db210-rac2vip db210-rac2vip.hurray.com.cn

192.168.18.12 db210-rac2priv db210-rac2priv.hurray.com.cn

192.168.19.12 db210-rac2hb db210-rac2hb.hurray.com.cn

2.监听器的配置

我的监听器文件配置如下：

bash-2.05$ cat listener.ora

# listener.ora.db210-rac1 Network Configuration

File: /opt/oracle/product/10.2.0/db/network/admin/listener.ora.db210-rac1

# Generated by Oracle configuration tools.

LISTENER_DB210-RAC1 =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST = db210-rac1vip)(PORT = 1521)(IP = FIRST))

)

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST = 172.16.19.11)(PORT = 1521)(IP = FIRST))

)

(ADDRESS_LIST =

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

)

)

)

3.tnsnames.ora文件配置

网络服务名等配置如下：

bash-2.05$ cat tnsnames.ora

# tnsnames.ora Network Configuration File: /opt/oracle/product/10.2.0/db/network/admin/tnsnames.ora

# Generated by Oracle configuration tools.

EYGLE2 =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = db210-rac2vip)(PORT = 1521))

(CONNECT_DATA =

(SERVER = DEDICATED)

(SERVICE_NAME = eygle)

(INSTANCE_NAME = eygle2)

)

)

EYGLE1 =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = db210-rac1vip)(PORT = 1521))

(CONNECT_DATA =

(SERVER = DEDICATED)

(SERVICE_NAME = eygle)

(INSTANCE_NAME = eygle1)

)

)

EYGLE =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = db210-rac1vip)(PORT = 1521))

(ADDRESS = (PROTOCOL = TCP)(HOST = db210-rac2vip)(PORT = 1521))

(LOAD_BALANCE = yes)

(CONNECT_DATA =

(SERVER = DEDICATED)

(SERVICE_NAME = eygle)

(FAILOVER_MODE =

(TYPE = SELECT)

(METHOD = BASIC)

(RETRIES = 180)

(DELAY = 5)

)

)

)

LISTENERS_EYGLE =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST = db210-rac1vip)(PORT = 1521))

(ADDRESS = (PROTOCOL = TCP)(HOST = db210-rac2vip)(PORT = 1521))

)

这就是主要的一些配置文件，其中，Oracle的相关配置文件都是自动生成的，VIP可以实现故障时的自动切换。

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