Wave energy to power undersea data centers

Offshore, underwater data centers are going to be powered using wave motion, says a sustainable energy developer. And it's going to happen soon.Commercial wave energy company Ocean Energy says it’s almost completed a marine hydrokinetic wave generator build and that the 1.25 Megawatt power-production capacity vessel will be ready to deploy in 2019.The 125-feet-long wave converter OE Buoy will provide enough electricity for a subsea data center platform, the company claims.“Technology companies will be able to benefit from wave power [in] marine-based data storage and processing centers,” Ocean Energy CEO John McCarthy said in a press release earlier this month. “OE Buoy presents them with the potential double-benefit of ocean cooling and ocean energy in the one device.”To read this article in full, please click here

Wave energy to power undersea data centers

Offshore, underwater data centers are going to be powered using wave motion, says a sustainable energy developer. And it's going to happen soon.Commercial wave energy company Ocean Energy says it’s almost completed a marine hydrokinetic wave generator build and that the 1.25 Megawatt power-production capacity vessel will be ready to deploy in 2019.The 125-feet-long wave converter OE Buoy will provide enough electricity for a subsea data center platform, the company claims.“Technology companies will be able to benefit from wave power [in] marine-based data storage and processing centers,” Ocean Energy CEO John McCarthy said in a press release earlier this month. “OE Buoy presents them with the potential double-benefit of ocean cooling and ocean energy in the one device.”To read this article in full, please click here

Episode 37 – Imposter Syndrome

Join us as we share a peek behind the curtain on some content created exclusively for our Network Collective community members. In this episode, the Network Collective hosts share their thoughts on imposter syndrome and some of the ways they work through this fairly common condition.

 

We would like to thank VIAVI Solutions for sponsoring this episode of Network Collective. VIAVI Solutions is an application and network management industry leader focusing on end-user experience by providing products that optimize performance and speed problem resolution. Helping to ensure delivery of critical applications for businesses worldwide, Viavi offers an integrated line of precision-engineered software and hardware systems for effective network monitoring and analysis. Learn more at www.viavisolutions.com/networkcollective.

 

Jordan Martin
Host
Eyvonne Sharp
Host
Russ White
Host

Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

The post Episode 37 – Imposter Syndrome appeared first on Network Collective.

GLIF 2018 Held at the Home of Hamlet

The 18th Annual Global LambaGrid Workshop (GLIF 2018) was held on 18-21 September 2018 at the Kulturværftet in Helsingør (Elsinore), Denmark. Kronberg Castle, located next to the venue, was immortalised as Elsinore in the William Shakespeare play Hamlet, but there proved to be nothing rotten with the state of high-bandwidth networking as 50 participants from 19 countries came to hear how these networks are facilitating exascale computing in support of biological, medical, physics, energy production and environmental research, and to discuss the latest infrastructure developments.

This event was organised by myself with support from NORDUnet who hosted the event in conjunction with the 30th NORDUnet Conference (NDN18), and where I also took the opportunity to raise awareness of the MANRS initiative.

The keynote was provided by Steven Newhouse (EBI) who presented the ELIXIR Compute Platform which was being used for analysing life science data. In common with high-energy physics, genomics research produces a lot of data, but this is more complex and variable, requires sequencing and imqging on shorter timescales, and of course has privacy issues. The European Molecular Biology Laboratory is based across six countries and employs over 1,600 people, but also collaborates with thousands of other scientists Continue reading

A Question of Timing

A Question of Timing
A Question of Timing

Photo by Aron / Unsplash

When considering website performance, the term TTFB - time to first byte - crops up regularly. Often we see measurements from cURL and Chrome, and this article will show what timings those tools can produce, including time to first byte, and discuss whether this is the measurement you are really looking for.

Timing with cURL

cURL is an excellent tool for debugging web requests, and it includes the ability to take timing measurements. Let’s take an example website www.zasag.mn (the Mongolian government), and measure how long a request to its home page takes:

First configure the output format for cURL in ~/.curlrc:

$ cat .curlrc
-w "dnslookup: %{time_namelookup} | connect: %{time_connect} | appconnect: %{time_appconnect} | pretransfer: %{time_pretransfer} | starttransfer: %{time_starttransfer} | total: %{time_total} | size: %{size_download}\n"

Now connect to the site dropping the output (-o /dev/null) since we’re only interested in the timing:

$ curl -so /dev/null https://www.zasag.mn
dnslookup: 1.510 | connect: 1.757 | appconnect: 2.256 | pretransfer: 2.259 | 
starttransfer: 2.506 | total: 3.001 | size: 53107

These timings are in seconds. Depending on your version of cURL, you may Continue reading

Hadoop And Spark Get A Vector Performance Boost

Ever since the “Aurora” vector processor designed by NEC was launched last year, we have been wondering if it might be used as a tool to accelerate workloads other than the traditional HPC simulation and modeling jobs that are based on crunching numbers in single and double precision floating point. …

Hadoop And Spark Get A Vector Performance Boost was written by Timothy Prickett Morgan at .

MUST READ: Operational Security Considerations for IPv6 Networks

A team of IPv6 security experts I highly respect (including my good friends Enno Rey, Eric Vyncke and Merike Kaeo) put together a lengthy document describing security considerations for IPv6 networks. The document is a 35-page overview of things you should know about IPv6 security, listing over a hundred relevant RFCs and other references.

No wonder enterprise IPv6 adoption is so slow – we managed to make a total mess.

Sonoff Flashing and steps towards Smart home

This post is no way related to Networking ! ?

It’s always my fascination to implement a specific tech towards home automation so as to have more time in hands. The first step towards this was to use a Tp-link smart switch which came with Alexa, now problem with that is that Tplink app was not properly responding to Alexa and TP-Link smart switch in itself was costly.

I wanted something low-cost, something which I can experiment yet be cost effective, After some re-search I came across Sonoff-Basic model.

https://sonoff.itead.cc/en/products/sonoff/sonoff-basic

I integrated with Amazon echo but again there were app issues (default app is ewelink), though it was working fine something was missing, I couldn’t tinker it to my wish

I found then there is a open-source version of a similar firmware called TASMOTA and we have to flash this sonoff with the new firm-ware of Tasmota, I have to tell you here there is every possibility you would brick your device and make it useless in the process.

https://github.com/arendst/Sonoff-Tasmota/wiki/Prerequisite

Everything is so well documented, there is no need to re-iterate things here, but just to show case another successful implementation.

Need-less to say you are playing with AC/DC Continue reading

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