5 ms·
Everything old is new again: "Never underestimate the bandwidth of a station wagon full of tapes hurtling down the highway." —Tanenbaum, Andrew S. (1989). Comp
by Piskvorrr 9y ago
Everything old is new again:
"Never underestimate the bandwidth of a station wagon full of tapes hurtling down the highway." —Tanenbaum, Andrew S. (1989). Computer Networks. New Jersey: Prentice-Hall. p. 57. ISBN 0-13-166836-6.
- Posibyte 9y agoIt really is a marvel when you think about it. The latency is horrible, several hours to several days, but each packet of data can contain several Pb of information inside of it. It comes with a built-in ACK method (phone call or site update), and the packet almost never needs to be verified externally because the data inside has all of its own integrity check methods.
- gruez 9y ago>It comes with a built-in ACK method (phone call or site update) Not really built in if it's out of band.
- JackFr 9y agoI assume they're sending the checksums with Bandit (lest a truck hijacking lead to a MITM attack.)
- ajford 9y agoThis sounds like the lead in to a fantastic spy movie. The rag-tag team of ex-spies have to band together with the younger techy team to hijack a Snowmobile and modify data on the fly, barreling down the highway.
- chiph 9y agoToo bad Pontiac is out of business. I suppose we could use a Camaro, as long as it's black, with T-Tops, and has a "screaming chicken" decal on the hood. Sadly, Burt Reynolds isn't available to drive (he needs assistance to get around these days)
- monocasa 9y agoMaybe we can make a ML model of Burt Reynolds?
- Bedon292 9y agoIf I recall the talk at re:Invent right, they offer guards as an optional feature you can add during travel. "Snowmobile is protected by 24/7 video surveillance and alarm monitoring, GPS tracking, and may be escorted by a security vehicle during transit." According to the FAQ.
- JackFr 9y agoI don't want to give away the plot completely, but for the truck to leave Manahttan, they go through the Lincoln Tunnel. In decent traffic, that will give me 5 minutes to separate/overwhelm guard cars, as well as hijack the truck en route. With my large team of crack drivers and action heroes, a bunch of panel trucks and vans can obstruct the view of all the civilians driving in the tunnel. By the time we're outside, the GPS is now in my truck, the driver and data of the real truck are under my control. (The most unrealistic part of this scenario is that someone would have their main data center in Manhattan.)
- tomtoise 9y agoAt University we had a question around this type of 'transfer'. I can't remember how it went exactly but we were to calculate the bandwidth of a jumbo plane carrying x amount of hard drives with y capacity to z destination. Given that the flight takes so many hours, what is the total transfer speed of data in seconds? I saw a few students nearly have a breakdown over that one.
- kingbirdy 9y agoWhy? It's just x * y / time
- tomtoise 9y agoYes, to those who had studied it was fairly obvious what the solution was, but the phrasing was such that to those who were just trying to wing it failed miserably.
- cmdrfred 9y agoI can solve that problem and I dropped out of high school. Simple math is something that has to be studied for at the college level?
- tomtoise 9y agoYes - the first year of University was designed as a catch-up to those who hadn't previously had exposure to this sort of thing and weed out the coasters. I must stress this was a single question on a single first-year exam. Not representative of the whole course in the slightest.
- acchow 9y agoYou just need to get the units to line up. You want bytes/seconds (i.e. quantity of data per unit time). You have: - Distance per unit time (km/h) - Payloads per unit distance (# of flights per km) - Quantity of data per payload (bytes per flight)
- gist 9y agoI am still trying to figure out if the story that I read in the 80's pointing out the need to always test backup tapes that was reinforced by saying some guy in Sweden erased them by putting on a heated car seat in the Winter was true or just a way to drive home a point. (I have never forgotten that story but can't find anything on the web about it today at least.)
- Piskvorrr 9y agoThe point wasn't in the heat - but that it was heated electrically, with the requisite magnetic field causing the erasure.