Oracle12c 单实例数据库通过 asm 进行安装配置，在 asmca 创建 asm 磁盘时出现 Oracle Grid Infrastructure is not configured properly. ASMCA needs Oracle Grid Infrastructure to configure ASM 提升信息，截图如下所示：

从上面的问题我们可以很清晰的看到是因为ASMCA 无法连接到 OracleGrid Infrastructure 而导致无法创建。检查has 进程，确定其已经起来，此处我的环境 has 是未起来的，重新执行

/u01/app/12.1.0/grid/crs/install/roothas.pl ，如下所示：

[root@localhost ~]# /u01/app/12.1.0/grid/crs/install/roothas.pl

Using configuration parameter file: /u01/app/12.1.0/grid/crs/install/crsconfig_params

LOCAL ADD MODE

Creating OCR keys for user 'oracle', privgrp 'oinstall'..

Operation successful.

LOCAL ONLY MODE

Successfully accumulated necessary OCR keys.

Creating OCR keys for user 'root', privgrp 'root'..

Operation successful.

CRS-4664: Node localhost successfully pinned.

2017/07/10 11:06:47 CLSRSC-330: Adding Clusterware entries to file 'oracle-ohasd.conf'

localhost     2017/07/10 11:07:05     /u01/app/12.1.0/grid/cdata/localhost/backup_20170710_110705.olr     0     

CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on 'localhost'

CRS-2673: Attempting to stop 'ora.evmd' on 'localhost'

CRS-2677: Stop of 'ora.evmd' on 'localhost' succeeded

CRS-2793: Shutdown of Oracle High Availability Services-managed resources on 'localhost' has completed

CRS-4133: Oracle High Availability Services has been stopped.

CRS-4123: Oracle High Availability Services has been started.

2017/07/10 11:08:18 CLSRSC-327: Successfully configured Oracle Restart for a standalone server

再次通过asmca 创建 asm 磁盘组，可以成功创建，结果如下图所示。