DANTE infrastructure behind CERN lab
DANTE infrastructure behind CERN lab
Source: Arstechnica.com
The structure that's being put in place is based on multiple tiers. Tier 0 is the LHC facility itself (at Geneva lake), which sits on DANTE's GÉANT2 network in Europe. From there, data will be streamed out to a series of Tier 1 facilities, which will provide long-term data storage. Tier 1 facilities include about a half-dozen facilities on the GÉANT2 network in Europe, as well as Brookhaven and Fermi National Labs. Each one of these will have a dedicated 10Gbps optical link to the LHC, which allows data to flow out from the collider at a continual rate of several Gigabytes a second. In addition, each Tier 1 facility will have connections to the rest via undedicated networks, including standard Internet connections. Data on Tier 1 can be accessed from any of the Tier 2 facilities, which are typically clusters with dedicated local storage.
In the US, they include institutions like Caltech, the University of Florida, and the University of California-San Diego. These centers contain local storage, and have a cluster dedicated to analysis of LHC data. All together, the resulting grid will have tens of thousands of CPUs and multiple petabytes of storage. Is this the next-generation Internet? It's easy to look at raw numbers on the equipment dedicated to the LHC and find them overwhelming. Even the transfer speeds obtained over the "regular" academic networks can be pretty impressive. That experience can apparently lead to some hyperbolic statements, such as one reporter who decided it was evidence that, "The Internet could soon be made obsolete."
It's worth stepping back and looking at what's actually happening to make these numbers a reality. For starters, none of the academic network providers are using anything other than off-the-shelf hardware. In addition, the actual physical connections between the hardware are little more than excess capacity. Any Internet provider could provide similar connections if it made economic sense for them to do so. Right now, it doesn't.
Source: (*) https://www.arstechnica.com/features/2008/05/future-internet/%3famp=1
Source: Arstechnica.com
The structure that's being put in place is based on multiple tiers. Tier 0 is the LHC facility itself (at Geneva lake), which sits on DANTE's GÉANT2 network in Europe. From there, data will be streamed out to a series of Tier 1 facilities, which will provide long-term data storage. Tier 1 facilities include about a half-dozen facilities on the GÉANT2 network in Europe, as well as Brookhaven and Fermi National Labs. Each one of these will have a dedicated 10Gbps optical link to the LHC, which allows data to flow out from the collider at a continual rate of several Gigabytes a second. In addition, each Tier 1 facility will have connections to the rest via undedicated networks, including standard Internet connections. Data on Tier 1 can be accessed from any of the Tier 2 facilities, which are typically clusters with dedicated local storage.
In the US, they include institutions like Caltech, the University of Florida, and the University of California-San Diego. These centers contain local storage, and have a cluster dedicated to analysis of LHC data. All together, the resulting grid will have tens of thousands of CPUs and multiple petabytes of storage. Is this the next-generation Internet? It's easy to look at raw numbers on the equipment dedicated to the LHC and find them overwhelming. Even the transfer speeds obtained over the "regular" academic networks can be pretty impressive. That experience can apparently lead to some hyperbolic statements, such as one reporter who decided it was evidence that, "The Internet could soon be made obsolete."
It's worth stepping back and looking at what's actually happening to make these numbers a reality. For starters, none of the academic network providers are using anything other than off-the-shelf hardware. In addition, the actual physical connections between the hardware are little more than excess capacity. Any Internet provider could provide similar connections if it made economic sense for them to do so. Right now, it doesn't.
Source: (*) https://www.arstechnica.com/features/2008/05/future-internet/%3famp=1
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