Welcome!

@BigDataExpo Authors: Liz McMillan, Carmen Gonzalez, AppNeta Blog, Pat Romanski, Elizabeth White

Related Topics: SDN Journal, Java IoT, Microsoft Cloud, Containers Expo Blog, @CloudExpo, @BigDataExpo

SDN Journal: Blog Feed Post

Virtual Apostasy

When all you have is a hypervisor, everything looks like it should be virtualized

When all you have is a hypervisor, everything looks like it should be virtualized.

Yes, I'm about to say something that's on the order of heresy in the church of virtualization. But it has to be said and I'm willing to say it because, well, as General Patton said, "If everyone is thinking the same...   someone isn't thinking."

The original NFV white paper cited in the excellent overview of the SDN and NFV relationships "NFV and SDN: What’s the Difference?" describes essentially two problems it attempts to solve: rapid provisioning and operational costs.

The reason commodity hardware is always associated with NFV and with SDN is that, even if there existed a rainbow and unicorns industry-wide standard for managing network hardware there would still exist significant time required to acquire and deploy said hardware. One does not generally have extra firewalls, routers, switches, and application network service hardware lying around idle. One might, however, have commodity (cheap) compute available on which such services could be deployed.

Software, as we've seen, has readily adapted to distribution and deployment in a digital form factor. It wasn't always so after all. We started with floppies, moved to CD-ROM, then DVD and, finally, to neat little packages served up by application stores and centralized repositories (RPM, NPM, etc...).

Virtualization arrived just as we were moving from the physical to digital methods of distribution and it afforded us the commonality (abstraction) necessary to enable using commodity hardware for systems that might not otherwise be deployable on that hardware due to a lack of support by the operating system or the application itself. With the exposure of APIs and management via centralized platforms, the issue of provisioning speed was quickly addressed. Thus, virtualization is the easy answer to data center problems up and down the network stack.

But it isn't the only answer, and as SDN has shown there are other models that provide the same agility and cost benefits as virtualization without the potential downsides (performance being the most obvious with respect to the network).

ABSTRACT the ABSTRACTION

Let's abstract the abstraction for a moment. What is it virtualization offers that a similar, software-defined solution would not? If you're going to use raw compute, what is it that virtualization provides that makes it so appealing?

Hardware agnosticism comes to mind as a significant characteristic that leads everyone to choose virtualization as nearly a deus-ex machina solution. The idea that one can start with bare metal (raw compute) and within minutes have any of a number of very different systems up and running is compelling. Because there are hardware-specific drivers and configuration required at the OS level, however, that vision isn't easily realized. Enter virtualization, which provides a consistent, targetable layer for the operating system and applications.

Sure, it's software, but is standardizing on a hypervisor platform all that different from standardizing on a hardware platform?

We've turned the hypervisor into our common platform. It is what we target, what we've used as the "base" for deployment. It has eliminated the need to be concerned about five or ten hundred different potential board-level components requiring support and provided us a simple base platform upon which to deploy. But it hasn't eliminated dependencies; you can't deploy a VM packaged for VMware on a KVM system or vice-versa. There's still some virtual diaspora in the market that requires different targeted packages. But at least we're down to half-a-dozen from the hundreds of possible combinations at the hardware level.

But is it really virtualization that enables this magical deployment paradigm or is it the ability to deploy on common hardware it offers that's important? I'd say its the latter. It's the ability to deploy on commodity hardware that makes virtualization appealing. The hardware, however, still must exist. It must be racked and ready, available for that deployment. In terms of compute, we still have traditional roadblocks around ensuring compute capacity availability. The value up the operational process stack, as it were, of virtualization suddenly becomes more about readiness; about the ability to rapidly provision X or Y or Z because it's pre-packaged for the virtualization platform. In other words, it's the readiness factor that's key to rapid deployment. If there is sufficient compute (hardware) available and if the application/service/whatever is pre-packaged for the target virtualization platform then rapid deployment ensues.

Otherwise, you're sitting the same place you were before virtualization.

So there's significant planning that goes into being able to take advantage of virtualization's commoditization of compute to enable rapid deployment. And if we abstract what it is that enables virtualization to be the goodness that it is we find that it's about pre-packaging and a very finite targeted platform upon which services and applications can be deployed.

The question is, is that the only way to enable that capability?

Obviously I don't think so or I wouldn't be writing this post.

COMPLACENCY is the GREAT INHIBITOR of INNOVATION

What if we could remove the layer of virtualization, replacing it instead with a more robust and agile operating system capable of managing a bare metal deployment with the same (or even more) alacrity than a comparable virtualized system?

It seems that eliminating yet another layer of abstraction between the network function and, well, the network would be a good thing. Network functions at layer 2-3 are I/O bound; they're heavily reliant on fast input and output and that includes traversing the hardware up through the OS up through the hypervisor up through the... The more paths (and thus internal bus and lane traversals) a packet must travel in the system the higher the latency. Eliminating as many of these paths as possible is one of the keys*** to continued performance improvements on commodity hardware such that they are nearing those of network hardware.

If one had such a system that met the requirements - pre-packaged, rapid provisioning, able to run on commodity hardware - would you really need the virtual layer?

No.

But when all you have is a hypervisor...

I'm not saying virtualization isn't good technology, or that it doesn't make sense, or that it shouldn't be used. What I am saying is that perhaps we've become too quick to reach for the hammer when confronted with the challenge of rapid provisioning or flexibility. Let's not get complacent. We're far too early in the SDN and NFV game for that.

* Notice I did not say Sisyphean. It's doable, so it's on the order of Herculean. Unfortunately that also implies it's a long, arduous journey.

** That may be a tad hyperbolic, admittedly.

*** The operating system has a lot - a lot - to do with this equation, but that's a treatise for another day

Read the original blog entry...

More Stories By Lori MacVittie

Lori MacVittie is responsible for education and evangelism of application services available across F5’s entire product suite. Her role includes authorship of technical materials and participation in a number of community-based forums and industry standards organizations, among other efforts. MacVittie has extensive programming experience as an application architect, as well as network and systems development and administration expertise. Prior to joining F5, MacVittie was an award-winning Senior Technology Editor at Network Computing Magazine, where she conducted product research and evaluation focused on integration with application and network architectures, and authored articles on a variety of topics aimed at IT professionals. Her most recent area of focus included SOA-related products and architectures. She holds a B.S. in Information and Computing Science from the University of Wisconsin at Green Bay, and an M.S. in Computer Science from Nova Southeastern University.

@BigDataExpo Stories
SYS-CON Events announced today that Fusion, a leading provider of cloud services, will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Fusion, a leading provider of integrated cloud solutions to small, medium and large businesses, is the industry’s single source for the cloud. Fusion’s advanced, proprietary cloud service platform enables the integration of leading edge solutions in the cloud, including clou...
With major technology companies and startups seriously embracing IoT strategies, now is the perfect time to attend @ThingsExpo 2016 in New York. Learn what is going on, contribute to the discussions, and ensure that your enterprise is as "IoT-Ready" as it can be! Internet of @ThingsExpo, taking place June 6-8, 2017, at the Javits Center in New York City, New York, is co-located with 20th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry p...
In his keynote at 18th Cloud Expo, Andrew Keys, Co-Founder of ConsenSys Enterprise, provided an overview of the evolution of the Internet and the Database and the future of their combination – the Blockchain. Andrew Keys is Co-Founder of ConsenSys Enterprise. He comes to ConsenSys Enterprise with capital markets, technology and entrepreneurial experience. Previously, he worked for UBS investment bank in equities analysis. Later, he was responsible for the creation and distribution of life sett...
SYS-CON Events announced today that Dataloop.IO, an innovator in cloud IT-monitoring whose products help organizations save time and money, has been named “Bronze Sponsor” of SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Dataloop.IO is an emerging software company on the cutting edge of major IT-infrastructure trends including cloud computing and microservices. The company, founded in the UK but now based in San Fran...
The 20th International Cloud Expo has announced that its Call for Papers is open. Cloud Expo, to be held June 6-8, 2017, at the Javits Center in New York City, brings together Cloud Computing, Big Data, Internet of Things, DevOps, Containers, Microservices and WebRTC to one location. With cloud computing driving a higher percentage of enterprise IT budgets every year, it becomes increasingly important to plant your flag in this fast-expanding business opportunity. Submit your speaking proposal ...
20th Cloud Expo, taking place June 6-8, 2017, at the Javits Center in New York City, NY, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy.
DevOps is being widely accepted (if not fully adopted) as essential in enterprise IT. But as Enterprise DevOps gains maturity, expands scope, and increases velocity, the need for data-driven decisions across teams becomes more acute. DevOps teams in any modern business must wrangle the ‘digital exhaust’ from the delivery toolchain, "pervasive" and "cognitive" computing, APIs and services, mobile devices and applications, the Internet of Things, and now even blockchain. In this power panel at @...
"MathFreeOn.com is a line coding platform for engineers and scientists. When they want to solve an engineering problem and they have to use software - they have to pay a lot of money for licenses - but with MathFreeOn you don't have to pay a lot of money. Just go to our site and write the code and you can check the result right away," explained Simon Lee, CMO of MathFreeOn, in this SYS-CON.tv interview at 19th Cloud Expo, held November 1-3, 2016, at the Santa Clara Convention Center in Santa Cla...
20th Cloud Expo, taking place June 6-8, 2017, at the Javits Center in New York City, NY, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy.
The many IoT deployments around the world are busy integrating smart devices and sensors into their enterprise IT infrastructures. Yet all of this technology – and there are an amazing number of choices – is of no use without the software to gather, communicate, and analyze the new data flows. Without software, there is no IT. In this power panel at @ThingsExpo, moderated by Conference Chair Roger Strukhoff, Dave McCarthy, Director of Products at Bsquare Corporation; Alan Williamson, Principal...
In his session at Cloud Expo, Robert Cohen, an economist and senior fellow at the Economic Strategy Institute, provideed economic scenarios that describe how the rapid adoption of software-defined everything including cloud services, SDDC and open networking will change GDP, industry growth, productivity and jobs. This session also included a drill down for several industries such as finance, social media, cloud service providers and pharmaceuticals.
Extracting business value from Internet of Things (IoT) data doesn’t happen overnight. There are several requirements that must be satisfied, including IoT device enablement, data analysis, real-time detection of complex events and automated orchestration of actions. Unfortunately, too many companies fall short in achieving their business goals by implementing incomplete solutions or not focusing on tangible use cases. In his general session at @ThingsExpo, Dave McCarthy, Director of Products...
Infrastructure is widely available, but who’s managing inbound/outbound traffic? Data is created, stored, and managed online – who is protecting it and how? In his session at 19th Cloud Expo, Jaeson Yoo, SVP of Business Development at Penta Security Systems Inc., discussed how to keep any and all infrastructure clean, safe, and efficient by monitoring and filtering all malicious HTTP/HTTPS traffic at the OSI Layer 7. Stop attacks and web intruders before they can enter your network.
Internet of @ThingsExpo has announced today that Chris Matthieu has been named tech chair of Internet of @ThingsExpo 2017 New York The 7th Internet of @ThingsExpo will take place on June 6-8, 2017, at the Javits Center in New York City, New York. Chris Matthieu is the co-founder and CTO of Octoblu, a revolutionary real-time IoT platform recently acquired by Citrix. Octoblu connects things, systems, people and clouds to a global mesh network allowing users to automate and control design flo...
Unsecured IoT devices were used to launch crippling DDOS attacks in October 2016, targeting services such as Twitter, Spotify, and GitHub. Subsequent testimony to Congress about potential attacks on office buildings, schools, and hospitals raised the possibility for the IoT to harm and even kill people. What should be done? Does the government need to intervene? This panel at @ThingExpo New York brings together leading IoT and security experts to discuss this very serious topic.
Businesses and business units of all sizes can benefit from cloud computing, but many don't want the cost, performance and security concerns of public cloud nor the complexity of building their own private clouds. Today, some cloud vendors are using artificial intelligence (AI) to simplify cloud deployment and management. In his session at 20th Cloud Expo, Ajay Gulati, Co-founder and CEO of ZeroStack, will discuss how AI can simplify cloud operations. He will cover the following topics: why clou...
In this strange new world where more and more power is drawn from business technology, companies are effectively straddling two paths on the road to innovation and transformation into digital enterprises. The first path is the heritage trail – with “legacy” technology forming the background. Here, extant technologies are transformed by core IT teams to provide more API-driven approaches. Legacy systems can restrict companies that are transitioning into digital enterprises. To truly become a lead...
Internet-of-Things discussions can end up either going down the consumer gadget rabbit hole or focused on the sort of data logging that industrial manufacturers have been doing forever. However, in fact, companies today are already using IoT data both to optimize their operational technology and to improve the experience of customer interactions in novel ways. In his session at @ThingsExpo, Gordon Haff, Red Hat Technology Evangelist, will share examples from a wide range of industries – includin...
"We analyze the video streaming experience. We are gathering the user behavior in real time from the user devices and we analyze how users experience the video streaming," explained Eric Kim, Founder and CEO at Streamlyzer, in this SYS-CON.tv interview at 19th Cloud Expo, held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA.
Enterprise IT has been in the era of Hybrid Cloud for some time now. But it seems most conversations about Hybrid are focused on integrating AWS, Microsoft Azure, or Google ECM into existing on-premises systems. Where is all the Private Cloud? What do technology providers need to do to make their offerings more compelling? How should enterprise IT executives and buyers define their focus, needs, and roadmap, and communicate that clearly to the providers?