RAC优势和劣势

http://tech.it168.com/a2012/0814/1384/000001384756_all.shtml

双机热备与RAC并行模式对比

WAS数据源设置

http://www.educity.cn/shujuku/553585.html

在WebSphere中配置配置Oracle RAC集群的数据源，假设Oracle RAC双击分别为 HOST1 与 HOST2 ， 端口为1521 ，服务名为 orcldbservice，则配置的URL连接串为

jdbc:oracle:thin:@(description=(ADDRESS_LIST=(ADDRESS = (PROTOCOL = TCP)(HOST = HOST1)(PORT = 1521))(ADDRESS = (PROTOCOL = TCP)(HOST = HOST2)(PORT = 1521)))(FAILOVER=yes)(LOAD_BALANCE=yes)(CONNECT_DATA =(SERVER = DEDICATED)(SERVICE_NAME = orcldbservice)))

创建数据源之后，需要重启nodeagent ， 否则测试不会通过。

sqlplus plsql连接配置

http://blog.sina.com.cn/s/blog_4fe6d4250102v5fa.html

使用vip方式

infodb8 =

  (DESCRIPTION=

    (ADDRESS=(PROTOCOL= TCP)(HOST=138.*.1.81)(PORT= 1521))

    (ADDRESS=(PROTOCOL= TCP)(HOST=138.*.1.82)(PORT= 1521))

    (LOAD_BALANCE= yes)

    (FAILOVER= ON)

    (CONNECT_DATA=

      (SERVER= DEDICATED)

      (SERVICE_NAME= infodb)

      (FAILOVER_MODE=

        (TYPE=SELECT)

        (METHOD= BASIC)

        (RETRIES= 30)

使用public ip方式

infodb8=

  (DESCRIPTION=

    (ADDRESS_LIST=

      (ADDRESS=(PROTOCOL= TCP)(HOST=138.*.1.83)(PORT= 1521))

    )

    (CONNECT_DATA=

      (SERVICE_NAME= infodb)

      (INSTANCE_NAME= infodb1)

    )

    (HS = OK)

  )

都是收集来的，未经验证，备用~