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The Australian Square Kilometre Array Pathfinder hits the big-data highway

blog.csiro.au

11–20 of 52 posts

Re: The Australian Square Kilometre Array Pathfinder hits the big-data highway

#12
Note that the actual collecting area will be 4072 square meters [1]. 12 out of 36 antennas are currently working.

That's roughly 31 Kbps per square millimeter.

Or 1 bit per second per 33 square microns.

[1] http://www.atnf.csiro.au/projects/askap/specs.html

Re: The Australian Square Kilometre Array Pathfinder hits the big-data highway

#15
post #9

Earlier quoted context omitted.

Either case, I doubt it is "15% of the internets current data rate" as they claim. E.g. the newish submarine cable between the US and Japan has 60 Tb capacity. And that's just one cable.

A large chunk of that capacity will be for private use, not for the capital-I Internet. 280Tbps is about right for interdomain Internet traffic, it lines up with Cisco's predictions/measurements: http://www.cisco.com/c/en/us/solutions/collateral/service-pr...

> A large chunk of that capacity will be for private use,

What private use requires that much bandwidth?

Re: The Australian Square Kilometre Array Pathfinder hits the big-data highway

#16

For Americans, that's 2.00773TB/s per Square Mile.

Are those Metric terabytes (1000^4), or in freedom units (1024^4)?

Should be tebibytes (TiB) for the latter, though binary prefixes don't have much adoption outside of the software world.

http://www.physics.nist.gov/cuu/Units/binary.html

Re: The Australian Square Kilometre Array Pathfinder hits the big-data highway

#17
post #15

Earlier quoted context omitted.

A large chunk of that capacity will be for private use, not for the capital-I Internet. 280Tbps is about right for interdomain Internet traffic, it lines up with Cisco's predictions/measurements: http://www.cisco.com/c/en/us/solutions/collateral/service-pr...

> A large chunk of that capacity will be for private use, What private use requires that much bandwidth?

Inter region traffic of large cloud providers.

Re: The Australian Square Kilometre Array Pathfinder hits the big-data highway

#18
We've reverted the title from the submitted “New Australian Square Kilometer Array Generates 5.2Tb/s”. One of the reasons the guidelines ask us to prefer original titles is because it's surprisingly difficult to generate new ones that remain accurate.
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