Expand OCRVOTE diskgroup size before upgrading to 12c

[root@rac01 ~]# oracleasm createdisk VOTE2 /dev/sdd1

Writing disk header: done

Instantiating disk: done

SQL> select path, name, header_status from v$asm_disk;

PATH                 NAME                           HEADER_STATU

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

ORCL:VOTE2                                          PROVISIONED

ORCL:DATA1           DATA1                          MEMBER

ORCL:FRA1            FRA1                           MEMBER

ORCL:VOTE1           VOTE1                          MEMBER

SQL> alter diskgroup OCRVOTE add disk 'ORCL:VOTE2' drop disk VOTE1;

Diskgroup altered.

SQL> select path, name, header_status from v$asm_disk;

PATH                 NAME                           HEADER_STATU

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

ORCL:VOTE1                                          FORMER

ORCL:DATA1           DATA1                          MEMBER

ORCL:FRA1            FRA1                           MEMBER

ORCL:VOTE2           VOTE2                          MEMBER