ORA-15014: path 'AFD:DATA01' is not in the discovery set

How to Resolve ORA-15014: path 'AFD:XXX' is not in the discovery set

$asmca -silent -createDiskGroup -diskString '/dev/xvd*' -diskGroupName DG_TEST_FRA -diskList /dev/xvdh -redundancy EXTERNAL
[FATAL] [DBT-30000] Configuring parameter asm_diskstring failed.
CAUSE: ORA-02097: parameter cannot be modified because specified value is invalid
ORA-15014: path 'AFD:DATA01' is not in the discovery set
Troubleshooting:
Verify asm_diskstring parameter in ASM. In my case it configured correctly

Since I have AFD (ASM filter Driver configured ) ASM_DISKSTRING parameter is correctly configured. In many cases this problem and you need to configure asm_diskstring in way so that it can discover all possible ASM disks. multiple values can be configured as shown below
SQL> alter system set asm_diskstring='AFD:*','/dev/oracle/disks/xvd*'
Check the disks available to ASM
SQL>select NAME,LABEL,PATH from v$asm_disk;

Here I realized that I am using incorrect value for -diskString '/dev/xvd*' and -diskList /dev/xvdh

I corrected the command and it worked

$asmca -silent -createDiskGroup -diskGroupName DG_TEST_FRA -diskList AFD:FRA01 -redundancy EXTERNAL

OR
$asmca -silent -createDiskGroup -diskString 'AFD:*' -diskGroupName DG_TEST_REDO -diskList AFD:REDO01 -redundancy EXTERNAL

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