The full RPC witness nodes run with 32GB RAM and uses an SSD RAID array for swap according to @gtg. Is that the magic sauce you were after! ;)
Doesn't seem like a great idea to use SSD like that, but I don't know enough about the MTTF for drives these days - maybe it's not too bad. Also I read about 'NVM Express interface', which make this more reasonable, and since most of the access is reading and not writing, perhaps this is scalable to a greater degree than we thought, you can get 2TB SSD drives now.
Seemingly the reliability is a problem with this approach though, perhaps as the memory is expected to be faster than SSD speeds?
He said 3 drives and RAID 1, but not sure whether he mean just 2 for the RAID, or 3.
To be absolutely fair, I haven't seen evidence of him lying directly, but there does seem a tendency to obscure the details somewhat ;)
It's not cheap to get remote facilities like these is it? I won't be attempting it on a standard VPS any time soon!
Yeah, maybe. I thought Bulgaria wasn't too bad, but maybe it varies a lot. What do you think the minimum practical bandwidth is? I can't seem to find that anywhere.
I'd guess somewhere around 20mbit.
Right, trying a few shows the European ones are <20ms and US <200ms. I have 20mbit, not sure I can afford to tie it all up though!