系统环境：
集群软件：Oracle GI 11.2.0.1.0
错误现象：
[oracle@node1 ~]$ srvctl add database -d stddb -o /u01/app/oracle/product/11.2.0/db_1/ -n cuug
[oracle@node1 ~]$ srvctl add instance -d stddb -i stddb1 -n node1
[oracle@node1 ~]$ srvctl add instance -d stddb -i stddb2 -n node2
[oracle@node1 ~]$ srvctl config database -d stddb
Database unique name: stddb
Database name: cuug
Oracle home: /u01/app/oracle/product/11.2.0/db_1/
Oracle user: oracle
Spfile:
Domain:
Start options: open
Stop options: immediate
Database role: PRIMARY
Management policy: AUTOMATIC
Server pools: stddb
Database instances: stddb1,stddb2
Disk Groups:
Services:
Database is administrator managed
[oracle@node1 ~]$
通过crs启动数据库：
[oracle@node1 ~]$ srvctl start database -d stddb
[oracle@node1 admin]$ sqlplus '/as sysdba'
SQL*Plus: Release 11.2.0.1.0 Production on Wed May 21 19:09:19 2014
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected to an idle instance.
通过sqlplus连接Instance：
[oracle@node1 admin]$ sqlplus sys/oracle@stddb as sysdba
SQL*Plus: Release 11.2.0.1.0 Production on Wed May 21 19:09:09 2014
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options
SQL> select instance_name,status from gv$instance;
INSTANCE_NAME STATUS
---------------- ------------
stddb1 OPEN
stddb2 OPEN
[oracle@node1 admin]$ sqlplus '/as sysdba'
SQL*Plus: Release 11.2.0.1.0 - Production on Thu May 22 16:24:20 2014
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Connected to an idle instance.
尽然连接的是idle的instance
解决方法：
[oracle@node1 ~]$ srvctl add database -d stddb -o $ORACLE_HOME -n cuug
将Oracle软件包的主目录换成变量！
[oracle@node1 ~]$ srvctl add instance -d stddb -i stddb1 -n node1
[oracle@node1 ~]$ srvctl add instance -d stddb -i stddb2 -n node2
[oracle@node1 ~]$ srvctl start database -d stddb
[oracle@node1 ~]$ sqlplus '/as sysdba'
SQL*Plus: Release 11.2.0.1.0 Production on Wed May 21 19:18:37 2014
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options
SQL> select instance_name,status from gv$instance;
INSTANCE_NAME STATUS
---------------- ------------
stddb1 OPEN
stddb2 OPEN
[oracle@node2 admin]$ export ORACLE_SID=stddb2
[oracle@node2 admin]$ sqlplus '/as sysdba'
SQL*Plus: Release 11.2.0.1.0 Production on Wed May 21 19:19:53 2014
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options
@至此，问题解决！