[tahoe-dev] First pass at setting up Tahoe on Amazon Web Services (AWS) (was: Re: Changing n-of-k - where is that done?)

[Zooko O'Whielacronx]

Sweet!  :-)

Very cool.  Thanks for posting about it.

On Thu, Dec 24, 2009 at 10:30 PM, Peter Secor <secorp at allmydata.com> wrote:
>
> Parallel to this is an economic analysis of what the costs are. I'll
> post this as a spreadsheet when it's actually legible, so far it's
> mostly scribbles on scratch paper and some rough calculations. For the
> particular application I'm working towards, the margins are high enough
> to make the rough analysis clearly indicate that this is a direction
> worth pursing.

My own back-of-the-envelope estimates (informed partially by your,
Peter's, spreadsheets), say that you ought to be able to run a
Tahoe-LAFS storage grid on commodity hardware for about 11 cents per
GB per year times redundancy.  So, for example, with our customary
k=3, n=10, which causes 3.3X redundancy, the cost should be about
$0.33 per GB per year.  However, I've learned from my experience with
allmydata.com that back-of-the-envelope estimates of overall costs are
usually worth less than the envelope.  :-)  I really look forward to
comparing the observed, long term, fully loaded cost of running
allmydata.com's server farm versus the observed, fully loaded cost of
running a Tahoe-LAFS grid on top of AWS.

Here are all my notes so far about the cost of bulk cloud storage on my blog.

full link: http://testgrid.allmydata.org:3567/uri/URI:DIR2-RO:j74uhg25nwdpjpacl6rkat2yhm:kav7ijeft5h7r7rxdp5bgtlt3viv32yabqajkrdykozia5544jqa/wiki.html#2009-12-09%202009-09-01%202009-08-30%202009-05-10%202009-05-09%202009-01-18%202008-12-28%20%5B%5B18%20November%202008%5D%5D

short URL by bit.ly: http://bit.ly/8h1Kno

short URL by ➡.ws: http://➡.ws/썖鉬

Regards,

Zooko