How to resize ASM disk

Hello,

I have Oracle Database 19c Enterprise Edition - RAC with latest patches running on AIX 7.2.0.0

I want to expand disk group ASMDATA(/dev/asmdata_v2) and ASMDATA1(/dev/asmdata1) by another 200GB

ASMDATA /dev/asmdata_v2 250GB

ASMDATA /dev/asmdata 650GB

ASMDATA1 /dev/asmdata1 150GB

Now when the raw disks are increased and the OSLEVEL sees the change and i confirm with

getconf DISK_SIZE asmdata_v2

Can i as grid do (sqlplus / as sysasm) and issue:

ALTER DISKGROUP ASMDATA RESIZE ALL;
ALTER DISKGROUP ASMDATA1 RESIZE ALL;

Is this method ok ? Also can this be done ONLINE ?

Any help and instructions will be appreciated.