configuration where 2 out of 3 physical servers can fail

[Ron Arts]

Hi,

I am a relative newbie, and experimenting with configuration.

This is for a relative small application. I have 3 servers, and need to configure for HA where 2 servers are allowed to fail.

I have come up with the following:

3 mgmt nodes
3 mysql servers (each client app runs MariaDB MaxScale pointing to the three servers)

I am confused about node groups, nodes. How would I approach this?

Thanks for any pointers,
Ron