My Areca raid controller is beeping; how do I make it STOP?

WARNING – Only continue with this operation after the cause of the alarm has been identified*

First we must authenticate to the controller by passing a password, the default is 0000.

[root@localhost ~]# cli64 set password=0000
GuiErrMsg: Success.
[root@localhost ~]#

Now we can mute the beeping!

[root@localhost ~]# cli64 sys beeper p=0
GuiErrMsg: Success.
[root@localhost ~]#