[Samba] Do you NEED pacemaker when using Samba Clustering (ctdb)

[John Ericsson]

I have used a two-node active-active samba cluster using cstb (using
clustered filesystem) and it has been working fine for over 3 years.
I set up a test environment and configured the samba using ctdb and forgot
to turn on pacemaker. Thing is it all works fine even without pacemaker.
Thinking about it ... of course it does, it works as the samba team said it
works. I should have asked this question 3 years ago. .
So what is pacemaker brining to the party when I read stuff like
"The current implementation of the CTDB Resource Agent configures CTDB to
only manage Samba. Everything else, including IP failover, should be
configured with Pacemaker."

I appreciate that there is no STONITH options.
thank you all