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14 Replies Latest reply: Dec 15, 2013 10:10 PM by Anar Godjaev RSS

ORA-15031: disk specification '/dev/oraclasm/disks/ASMDATA10' matches no disks

vk82 Explorer
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Hi Guru's

 

OS: RHEL5

DB: 11.2.0

Today i am facing a strange proble while creating Diskgroup in ASM. The scenerio is like :

 

I create disk partitions from 1-7 during installing 11gr2 db with grid and cretate the disk group DATA and FRA using ASMCA. but after completeing all installation db as well as grid later on i add 4 disks and start the server. and add those disk by using oracleasm create disk commad and check the disks are properly listed while checking using oracleasm listdisks

 

But when i try to create disk group using command prompt:-

 

SQL> CREATE DISKGROUP DATA1

EXTERNAL REDUNDANCY

DISK '/dev/oracleasm/disks/ASMDATA10';

 

I am getting error as:-

 

ORA-15018: diskgroup cannot be created

ORA-15031: disk specifications '/dev/oracleasm/disks/ASMDATA10' matches no disks

ORA-15014: path '/dev/oracleasm/disks/ASMDATA10' is not in the discovery set

 

But when i try to create the diskgroup using asmca i am able to create the disk group DATA1

 

why this is happening

 

any idea about the same

 

Thanks in advance.

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