Oracle 11g RAC 客户端Tnsname配置,在RAC环境中，同一会话，当前会话连接节点实例故障，可以快速的切替的另一节中运行，对客户端
[oracle@rac01 ~]$ sqlplus '/ as sysdba';
SQL*Plus: Release 11.1.0.6.0 - Production on Mon Jul 16 22:00:17 2012
Copyright (c) 1982, 2007, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - Production
With the Partitioning, Real Application Clusters, OLAP, Data Mining
and Real Application Testing options
SQL> shutdown abort
ORACLE instance shut down.
SQL>
，
