I had a question relating too the preferred cluster nodes, we have a 23 node cluster, in two different chaises currently in the "Preferred Node List" there are all of those Nodes in the list.

My Question is that really necessary or is there only a need for (1) Primary Node, and (2) a Secondary Node?

I'm truly looking to find out if there really is a need for all that extra work in configuring Preferred Node(s)

Thank you,