rac 自己想到的问题验证

1、单节点启动时，是可以操作的
[oracle@rac1 ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 11 11:54:29 2019Copyright (c) 1982, 2011, Oracle.  All rights reserved.Connected to:Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit ProductionWith the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,Data Mining and Real Application Testing optionsSQL> SELECT inst_name FROM v$active_instances;INST_NAME--------------------------------------------------------------------------------rac1:RAC1SQL> exitDisconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit ProductionWith the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,Data Mining and Real Application Testing options[oracle@rac1 ~]$ 

2、新节点加入问题，正常运行后是否自动加入（是）
[oracle@rac1 ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 11 12:01:42 2019Copyright (c) 1982, 2011, Oracle.  All rights reserved.Connected to:Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit ProductionWith the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,Data Mining and Real Application Testing optionsSQL> SELECT inst_name FROM v$active_instances;INST_NAME--------------------------------------------------------------------------------rac1:RAC1rac2:RAC2SQL> 

3、默认rac是自动启动相关服务的
4、非图形化并没有节省多少资源