J. Eric Townsend says:
"Perry E. Metzger" writes:
Tell you what, Karl -- when you build the device that can store 2^56
I have 1/72nd of that storage capacity in the next room, using off-the-shelf technology. Also, 8GB RAM, and another 300-500GB of 'fast' storage local to the CPU.
My bogometer just triggered, so I decided to check your math. (2^56)*8 = 576,460,752,303,423,488 ((2^56)*8)/72 = 8,006,399,337,547,548 or eight quadrillion bytes.
(Cray C90, 1GW main memory, .5TB drive storage of various types, 9 tape silos)
Gee, half a terrabyte. Thats 16,000 times less than you claimed.
Again, all off-the-shelf technology. Tape robots are a few years old, actually. :-)
Your off the shelf slow speed tape technology isn't even 1/16,000 of what you claimed, and its over a million times less storage than you would need, in *RAM*, for the proposed task. Perry