I think it’s likely that they were either independent or the Helios folks had a brief overview of Plan9. While Helios did a lot of quite cool stuff, I don’t th

I think it’s likely that they were either independent or the Helios folks had a brief overview of Plan9. While Helios did a lot of quite cool stuff, I don’t think it was as general as 9P. It felt like it was produced by a small number of smart people under a lot of time pressure, while Plan9 felt more like it had a more leisurely research background. I recommend the blue book (vs the black one) for detailed documentation. That plus the book of papers from Perihelion was enough to get servers running.