Hello, I am not sure what fixed the issue. The hangs stopped coming . Probably the way I brought down the node to be replaced caused the issue , related to removing the osd's from cluster. It has been a year and not certain on that.
I...
Have you already purchased the motherboards?
If not price out single cpu systems with plenty of memory. The savings over dual cpu ( assuming you were pricing that out) may leave cash to afford nvme’s or data a center grade ssd