ORA-15031: disk specification ‘/dev/oracleasm/disks/ASM_FRA01’ matches no disks

When tried to create diskgroup FRA, and got the following errors:

            DISK '/dev/oracleasm/disks/ASM_FRA01' NAME ASM_FRA01;
ERROR at line 1:
ORA-15018: diskgroup cannot be created
ORA-15031: disk specification '/dev/oracleasm/disks/ASM_FRA01' matches no disks
ORA-15014: path '/dev/oracleasm/disks/ASM_FRA01' is not in the discovery set

Checked ASM disk already existed:

# oracleasm listdisks

SQL> ! ls -ltr /dev/oracleasm/disks/ASM_FRA01
brw-rw---- 1 grid dba 253, 2 Sep 26 15:32 /dev/oracleasm/disks/ASM_FRA01

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