I consider to try out OpenSSI 1.9.1 but that is a developer version and acording to some bulletins that cluster version freezes, and no new version has been made for more than a year. If I use version 1.2.2 in a two node configuration with drbd then is it easy to set up the init node, but how do I add a new node with help from PXE? Is there some software which makes it easy? meta-disk in drbd, what is that? How big shall that partition be? I hope you can answer some of my questions.