方法1：適合中介軟體等JDBC等連線方法,本示例為thin方式

url="jdbc:oracle:thin:@(DESCRIPTION =

    (LOAD_BALANCE = NO)

    (ADDRESS = (PROTOCOL =TCP)(HOST = dtydb3-vip)(PORT = 1521))

    (ADDRESS = (PROTOCOL =TCP)(HOST = dtydb4-vip)(PORT = 1521))

    (ADDRESS = (PROTOCOL =TCP)(HOST = dtydb5-vip)(PORT = 1521))

    (ADDRESS = (PROTOCOL =TCP)(HOST = dtydb6-vip)(PORT = 1521))

    (CONNECT_DATA =

     (SERVICE_NAME = srv_kfpb1)

    )

  )"

同時需要修改/etc/hosts檔案，新增如下內容

#VIP

10.4.×.*    dtydb4-vip

10.4.×.*    dtydb5-vip

10.4.×.*   dtydb6-vip

方法2：一般用於sqlplus、plsql等客戶端工具

$ORACLE_HOME/network/admin/tnsnames.ora檔案中新增如下內容

tydb_kfpb1 =

  (DESCRIPTION =

    (LOAD_BALANCE = NO)

    (ADDRESS = (PROTOCOL =TCP)(HOST = 10.4.×.*)(PORT = 1521))

    (ADDRESS = (PROTOCOL =TCP)(HOST = 10.4.×.*)(PORT = 1521))

    (ADDRESS = (PROTOCOL =TCP)(HOST = 10.4.×.*)(PORT = 1521))

    (ADDRESS = (PROTOCOL =TCP)(HOST = 10.4.×.*)(PORT = 1521))

    (CONNECT_DATA =

      (SERVICE_NAME= srv_kfpb1)

    )

  )

然後直接使用tydb_kfpb1進行連線 

備註：黃色部分修改為自己需要的服務名