[FoRK] Two bits (for Ken, Sean)
sean at conman.org
Tue Feb 2 23:27:15 PST 2010
It was thus said that the Great Jeff Bone once stated:
> Sean says:
> >And never underestimate the bandwidth  of a station wagon loaded
> >with tapes .
> Yeah, that's the standard argument. Realistically, in all these years
> in the industry, I have yet to see any significant *data transfer*
> accomplished via such means (or a FedEx full of CDs, etc.) I have
> seen (and actually been party to) shipments on the order of a truck
> full of pre-configured server racks, but the point there isn't really
> data transfer. Offsite data storage, yeah, but not particularly for
> bandwidth reasons (cost-vs-bandwidth, perhaps, arguably.)
That bit about the USENET feed to Australia may have been true (at least,
in the 80s).
> SneakerNet is SneakerNet no matter what form it takes. If that's all
> you've got, or you can't afford something better, then you make do.
> But for my own time and money, I prefer my bits online and have for
> some time (like, about 25 years or so ;-) In fact, at Sun, I was
> always amused by the "Network is the Computer" slogan. IMHO, it
> should've been "the network is the hard drive." (Particularly given
> that a large part of their success was due to NFS.)
A friend of mine had 700G of files he wanted to give me. Assuming both
our computers were on 100Mb/sec networks, it still would have taken nearly
10 hours to transfer the data:
Approximately 2^39 bytes, or 2^42 bits.
100Mb/sec is approximately 2^27 bits per second
2^42 / 2^27 = 2^15 or 32,768 seconds, or 9.9 hours.
vs. an hour and a half driving time to hook the external drive up to my
system. How many here would *love* a full duplex 100Mb/sec Internet
connection? How many here *could* afford a full duplex 100Mb/sec Internet
> You shouldn't have to move bits around *as if* they were atoms.
No, you shouldn't. But still, in some cases, FedEx is still faster.
-spc (Actual mileage may vary ... )
 We're a webhosting company, and we can *barely* afford one. Did I
mention we're a *small* webhosting company?
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