执行asmca创建磁盘组没有问题，但以sqlplus / as sysasm登陆创建却出现异常

SQL>create diskgroup DATA external redundancy disk '/dev/Oracleasm/disks/*'

 *

 ERROR at line 1:

 ORA-15018: diskgroup cannot be created

ORA-15031: disk specification '/dev/oracleasm/disks/*' matches no disks

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推荐阅读：

ORA-01172、ORA-01151错误处理

ORA-00600 [2662]错误解决

ORA-01078 和 LRM-00109 报错解决方法

ORA-00471 处理方法笔记

ORA-00314,redolog 损坏，或丢失处理方法

ORA-00257 归档日志过大导致无法存储的解决办法

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解决方法

SQL> show parameter asm_diskstring;

NAME                                TYPE        VALUE

 ------------------------------------ ----------- ------------------------------

 asm_diskstring                      string

SQL> alter system set asm_diskstring='/dev/oracleasm/disks/*' scope=spfile;

System altered.

[root@RAC1 ~]# /u01/app/11.2.0/grid/bin/crsctl stop crs

[root@RAC1 ~]# /u01/app/11.2.0/grid/bin/crsctl start crs

SQL> create diskgroup DATA external redundancy disk '/dev/oracleasm/disks/*';

Diskgroup created.

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