Private Cloud vs Public Cloud: what is the best solution?
Datacenter.com – Cloud computing spans a range of classifications, types and architecture models. The transformative networked computing model can be categorized into three major types: Public Cloud, Private Cloud and Hybrid Cloud.
Hybrid IT has rapidly proven that it offers the flexibility for delivering new software applications and enhanced features quickly critical agility in the age of digital business. With that in mind, enterprises now need to identify the best distribution of services and applications and their strategy for connecting to the clouds they use.
This article explores the key differences between the classifications of Public, and Private cloud environments.
Public Cloud refers to the cloud computing model with which the IT services are delivered across the Internet. The computing functionality may range from common services such as email, apps and storage to the enterprise-grade OS platform or infrastructure environments used for software development and testing. The cloud vendor is responsible for developing, managing and maintaining the pool of computing resources shared between multiple tenants from across the network.
The advantages of Public Cloud solutions for business customers include:
- No investments required to deploy and maintain the IT infrastructure;
- Flexible pricing options based on different SLA offerings
However, there are disadvantages as well, including:
- The total cost of ownership (TCO) can rise exponentially for large-scale usage, specifically for midsize to large enterprises
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By Katie Bo Williams – More than a year since the new National Defense Strategy refocused the U.S. military away from counterinsurgency and back towards the country’s greatest strategic competitors, some policy and strategy experts say the Pentagon hasn’t yet figured out how to “compete” with Russia and China.
In fact, it hasn’t even settled on a definition for the “competition” in “great power competition.”
The uncertainty has left former officials scratching their heads about how, specifically, the Defense Department plans to counter China and Russia beneath the threshold of armed conflict. It also appears to be pulling the Pentagon’s policy planners beyond their traditional purview of fighting and winning wars.
“The NDS has two pieces to it: it says you have to compete with China and Russia and prepare for conflict with China and Russia,” said Mara Karlin, a former deputy assistant defense secretary for strategy and force development. “Those are different. The way you would manage and develop your force is different depending on which one you are biasing towards.” more>
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500G transpacific. Yep, we did that!
The news from SubOptic? Let’s start with our successful single-wavelength 500G field trial over a 9,000km transpacific cable. Ciena’s Brian Lavallee explains more about this milestone as well as other highlights from this important technical conference.
By Brian Lavallée – SubOptic 2019 has recently come to a close, and as the locals say, “laissez les bon temps rouler”, or let the good times roll – and they did.
We shared the news of a successful single-wavelength 500G field trial over a 9,000km transpacific cable, which was completed just before the event. Of course, this means we can also do 500G single-wavelength transmission across much shorter transatlantic distances too. The transpacific field trial leveraged our very latest WaveLogic 5 Extreme coherent optical technology, which truly takes our pioneering submarine networking solution,
GeoMesh Extreme, to the extreme. In just under a decade, we’ve leaped from 10G to 500G transpacific – a truly impressive feat.
How did we achieve such performance?
By leveraging advanced Digital Signal Processing (DSP) capabilities, 95Gbaud operation, Probabilistic Constellation Shaping (PCS), throughput-optimized FEC, and nonlinear mitigation techniques. more>
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Planning a hybrid cloud implementation? Don’t forget the importance of the network
Almost every company is working on some form of cloud transformation, and we’ve noticed that almost everyone is pursuing a hybrid cloud strategy. Because hybrid sees a wide range of on-premise, hosted and cloud-based services side by side, it will only be cost-effective if you can establish reliable, secure connectivity between the various elements of your hybrid architecture.
datacenter.com – Today everything has to be on demand
The network is often forgotten because IT teams are planning hybrid cloud transformation projects. Without properly dimensioned legacy-to-public cloud connectivity, transformation projects can be compromised and run into serious customer experience problems.
“Transformation projects can be paralyzed without properly dimensioned legacy-to-public cloud connectivity”
This is why organizations are now trying to request and order on-demand capacity from the network as they need, reducing traditional constraints such as capex, delays at external suppliers and long project timelines.
From one to multiple networks
By connecting on demand, you can also adjust the bandwidth up or down to suit your project. For example, if you perform a major update on your cloud platform or your IT services go into production as quickly as they are built for the development and testing phase of your project you can adjust your bandwidth based on the (temporary) need.
“By connecting on-demand, you can also adjust the bandwidth up or down to your project” more>
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Tomorrow’s cities: evolving from “smart” to Adaptive
Cities are going smart – trying to deal with the proliferation of people, sensors, automobiles and a range of devices that demand network access and generate mind-boggling amounts of data. However, being smart is not an instance in time, and a “smart city” is not static. To be worthy of the name, a smart city must continually evolve and stay ahead of demand. This is only possible if the city’s underlying network is just as smart and can adapt to its constantly changing environment.
By Daniele Loffreda – Cities are constantly in flux. Populations move in; populations move out. Demographics change, economic growth falls and then soars. New leadership steps in and—if you believe all the commercials—technology will make everyone’s life better.
Municipal governments understand the need to consider which smart city applications will best serve the demands of their diverse demographic segments. The City of Austin’s Head of Digital Transformation, Marni White, summed up these challenges stating, “Our problems will continue to change over time, so our solutions also need to change over time.”
The one constant in the smart city is the network running underneath these solutions—and the truly smart city has a network that adapts.
Smart city applications must be aligned with where a city and its citizens want to go. Some municipalities that created model smart-cities early on have had to initiate extensive revamping. For example, the City of Barcelona has long been at the cutting edge of using digital devices and the Internet of Things to improve municipal operations; however, in 2017, Mayor Ada Colau gave Barcelona’s CTO, Francesca Bria, a mandate to “rethink the smart city from the ground up.”
This meant shifting from a “technology-first” approach, centered on interconnected devices, to a “citizen-first” focus that responds to the changing needs that residents themselves help define. more>
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By Umair Irfan – Humans are pumping more carbon dioxide into the atmosphere at an accelerating rate. But climate change is a cumulative problem, a function of the total amount of greenhouse gases that have accumulated in the sky. Some of the heat-trapping gases in the air right now date back to the Industrial Revolution. And since that time, some countries have pumped out vastly more carbon dioxide than others.
The wonderful folks at Carbon Brief have put together a great visual of how different countries have contributed to climate change since 1750. The animation shows the cumulative carbon dioxide emissions of the top emitters and how they’ve changed over time.
What’s abundantly clear is that the United States of America is the all-time biggest, baddest greenhouse gas emitter on the planet.
That’s true, despite recent gains in energy efficiency and cuts in emissions. These relatively small steps now cannot offset more than a century of reckless emissions that have built up in the atmosphere. Much more drastic steps are now needed to slow climate change. And as the top cumulative emitter, the US bears a greater imperative for curbing its carbon dioxide output and a greater moral responsibility for the impacts of global warming.
Yet the United States is now the only country aiming to withdraw from the Paris climate agreement. more>
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