- Part III: Since NFSv4 is Stateful It Must Be Less Robust, Right? – “This should conclude my series on this topic, but obviously it’s my blog and like any content provider with no self-respect, I am free to make as many sequels as I want in order to milk the topic for all it is worth. I am going to compare the impact on applications when the NFS client it is using recovers from an NFSv3 and NFSv4 server restart.” Good stuff.