ORA-15014: path ‘/dev/disk1′ is not in the discovery set

ORA-15014: path ‘/dev/disk1′ is not in the discovery set

ORA-15014: path ‘/dev/disk1′ is not in the discovery set

First we need to check with system administrators to name the disks for the RAC 11gR2 installation using one common naming convention like say – disk1,disk2,disk3.....

SQL> create diskgroup DATA external redundancy disk ‘/dev/disk1’ force;
create diskgroup DATA external redundancy disk ‘/dev/disk1’ force
*
ERROR at line 1:
ORA-15018: diskgroup cannot be created
ORA-15031: disk specification ‘/dev/disk1’ matches no disks
ORA-15014: path ‘/dev/asm_disk2′ is not in the discovery set

SQL> alter system set asm_diskstring=’/dev/disk1′;
alter system set asm_diskstring=’/dev/disk1’
*
ERROR at line 1:
ORA-02097: parameter cannot be modified because specified value is invalid
ORA-15014: path ‘/dev/ocr_disk1′ is not in the discovery set

SQL> alter system set asm_diskstring=’/dev/disk*’ sid=’*’;

System altered.

SQL> create diskgroup DATA external redundancy disk ‘/dev/asm_disk1’;

Diskgroup created.