|By Lori MacVittie||
|January 28, 2014 09:15 AM EST||
The term programmability is, like every other term associated with hype-driven trends, used to describe a wide range of capabilities. In general, when applied to "the network", programmability implies one of two things: an API through which a network element can be configured and managed and/or a scripting mechanism that enables direct interaction with the data path.
These two aspects of programmability provide integration between data center elements (control plane) as well as enabling extensibility through the creation of new services on the platform (data plane). But they don't speak to a third capability - the invocation of external services as a reaction to some data center event.
For example, a data center "event" might be the depletion of capacity in the face of high demand. Elasticity (the automatic scaling up and down of a service or application) demands action be taken. That action, ideally, is automated. The overall system should understand when capacity limits are about to be breached (both in the upward and downward direction) and be able to take the appropriate action - provision additional capacity or decommission capacity.
Most "network" elements are not capable of taking this action directly. Load balancing platforms for the most part are the first service to recognize a need to change capacity, but are rarely able to take action other than sharing that information with an external system. For most load balancing platforms that's because they lack the programmability necessary to do so. They may be programmatic at the control plane and even on the data plane, but they are not imbued with the ability to execute logic on an event-driven basis.
Platforms that are so imbued (and they do exist) are able to do so.
Let me illustrate...
The vCloud API Programming Guide has a robust set of interfaces through which a vAPP (which in VMware jargon describes a complete "application") can be managed. You can, through this API, power on (provision, launch, etc...) and shutdown (decommission, power off, etc...) a given vAPP. A programmable platform can leverage those APIs to enable rapid elasticity.
HERE COMES the (COMPUTER) SCIENCE
Interestingly, a scalable application consists of at least two things: a load balancing service and a pool of application resources. How far you can take that to implement actual elasticity depends entirely on the availability of APIs through which you can manage application instances (virtual machines) and the programmability of the platform upon which the load balancing service is deployed.
Assuming you have what you need, your environment looks something like this:
Health monitoring enables the service platform to know when there's a problem, that's critical for high-availability. The platform also understands the capacity limits of each virtual instance. Now, let's say demand is suddenly spiking (the source is irrelevant). Given the strategic location of the service platform, it is the first system in the data center able to recognize that capacity limits are about to be breached.
The question is, what does the service platform do about that?
Well, in most systems it's just going to share that information with an external orchestration/management platform. In most cases, in fact, it's going to share it passively; that is, the information won't reach the management platform until the management platform asks for it. It's a polling system, not a proactive push from the service platform.
That means that it's possible that capacity will be reached and users will start experiencing delays or even time-outs before the management platform even knows there's a problem.
In order to realize elasticity that actually ensures high-availability and responsiveness of applications, we need something more proactive. The service platform must participate either by pushing a capacity reached notification to the management platform or, if it's able to, simply instructing the management platform to provision the additional resources necessary to ensure capacity is expanded before limits are breached.
This requires that the service platform is not only programmable at the control and data path planes, but also at the configuration layer. It must be able to not only recognize a breach of thresholds but then act on that breach. In this case, acting means initiating a process that will result in the provisioning of additional resources required to ensure continued availability and performance. As demand wanes, another threshold can trigger a reverse process in which an instance is decommissioned*.
Now, you can certainly design your data center in myriad ways to deal with elasticity and availability. If you've got the right service platform - one that's programmable in more than just the traditional two-pronged approach - then you've got another option available to you. An option that's more proactive and leverages what is an existing strategic point of control in your network architecture.
* Provisioning is easier and less complex than decommissioning, as the latter requires careful attention to existing connections and essentially means the load balancing service must manage the process of stopping new connections while maintaining existing ones until users complete their session (quiescence).
SYS-CON Events announced today that G2G3 will exhibit at SYS-CON's @DevOpsSummit Silicon Valley, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. Based on a collective appreciation for user experience, design, and technology, G2G3 is uniquely qualified and motivated to redefine how organizations and people engage in an increasingly digital world.
Aug. 31, 2015 11:00 PM EDT Reads: 502
Any Ops team trying to support a company in today’s cloud-connected world knows that a new way of thinking is required – one just as dramatic than the shift from Ops to DevOps. The diversity of modern operations requires teams to focus their impact on breadth vs. depth. In his session at DevOps Summit, Adam Serediuk, Director of Operations at xMatters, Inc., will discuss the strategic requirements of evolving from Ops to DevOps, and why modern Operations has begun leveraging the “NoOps” approa...
Aug. 31, 2015 10:30 PM EDT Reads: 401
Too often with compelling new technologies market participants become overly enamored with that attractiveness of the technology and neglect underlying business drivers. This tendency, what some call the “newest shiny object syndrome,” is understandable given that virtually all of us are heavily engaged in technology. But it is also mistaken. Without concrete business cases driving its deployment, IoT, like many other technologies before it, will fade into obscurity.
Aug. 31, 2015 09:00 PM EDT Reads: 371
Organizations from small to large are increasingly adopting cloud solutions to deliver essential business services at a much lower cost. According to cyber security experts, the frequency and severity of cyber-attacks are on the rise, causing alarm to businesses and customers across a variety of industries. To defend against exploits like these, a company must adopt a comprehensive security defense strategy that is designed for their business. In 2015, organizations such as United Airlines, Sony...
Aug. 31, 2015 07:15 PM EDT Reads: 486
Amazon and Google have built software-defined data centers (SDDCs) that deliver massively scalable services with great efficiency. Yet, building SDDCs has proven to be a near impossibility for ‘normal’ companies without hyper-scale resources. In his session at 17th Cloud Expo, David Cauthron, founder and chief executive officer of Nimboxx, will discuss the evolution of virtualization (hardware, application, memory, storage) and how commodity / open source hyper converged infrastructure (HCI) so...
Aug. 31, 2015 04:45 PM EDT
In their Live Hack” presentation at 17th Cloud Expo, Stephen Coty and Paul Fletcher, Chief Security Evangelists at Alert Logic, will provide the audience with a chance to see a live demonstration of the common tools cyber attackers use to attack cloud and traditional IT systems. This “Live Hack” uses open source attack tools that are free and available for download by anybody. Attendees will learn where to find and how to operate these tools for the purpose of testing their own IT infrastructu...
Aug. 31, 2015 04:30 PM EDT Reads: 464
The web app is agile. The REST API is agile. The testing and planning are agile. But alas, data infrastructures certainly are not. Once an application matures, changing the shape or indexing scheme of data often forces at best a top down planning exercise and at worst includes schema changes that force downtime. The time has come for a new approach that fundamentally advances the agility of distributed data infrastructures. Come learn about a new solution to the problems faced by software organ...
Aug. 31, 2015 04:30 PM EDT
IBM’s Blue Box Cloud, powered by OpenStack, is now available in any of IBM’s globally integrated cloud data centers running SoftLayer infrastructure. Less than 90 days after its acquisition of Blue Box, IBM has integrated its Blue Box Cloud Dedicated private-cloud-as-a-service into its broader portfolio of OpenStack® based solutions. The announcement, made today at the OpenStack Silicon Valley event, further highlights IBM’s continued support to deliver OpenStack solutions across all cloud depl...
Aug. 31, 2015 03:00 PM EDT Reads: 252
Red Hat is investing in Tesora, the number one contributor to OpenStack Trove Database as a Service (DBaaS) also ranked among the top 20 companies contributing to OpenStack overall. Tesora, the company bringing OpenStack Trove Database as a Service (DBaaS) to the enterprise, has announced that Red Hat and others have invested in the company as a part of Tesora's latest funding round. The funding agreement expands on the ongoing collaboration between Tesora and Red Hat, which dates back to Febr...
Aug. 31, 2015 02:45 PM EDT Reads: 381
With the proliferation of connected devices underpinning new Internet of Things systems, Brandon Schulz, Director of Luxoft IoT – Retail, will be looking at the transformation of the retail customer experience in brick and mortar stores in his session at @ThingsExpo. Questions he will address include: Will beacons drop to the wayside like QR codes, or be a proximity-based profit driver? How will the customer experience change in stores of all types when everything can be instrumented and a...
Aug. 31, 2015 02:30 PM EDT Reads: 462
The Internet of Things (IoT) is about the digitization of physical assets including sensors, devices, machines, gateways, and the network. It creates possibilities for significant value creation and new revenue generating business models via data democratization and ubiquitous analytics across IoT networks. The explosion of data in all forms in IoT requires a more robust and broader lens in order to enable smarter timely actions and better outcomes. Business operations become the key driver of I...
Aug. 31, 2015 02:30 PM EDT Reads: 422
WSM International, the pioneer and leader in server migration services, has announced an agreement with WHOA.com, a leader in providing secure public, private and hybrid cloud computing services. Under terms of the agreement, WSM will provide migration services to WHOA.com customers to relocate some or all of their applications, digital assets, and other computing workloads to WHOA.com enterprise-class, secure cloud infrastructure. The migration services include detailed evaluation and planning...
Aug. 31, 2015 02:00 PM EDT Reads: 187
SYS-CON Events announced today that DataClear Inc. will exhibit at the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. The DataClear ‘BlackBox’ is the only solution that moves your PC, browsing and data out of the United States and away from prying (and spying) eyes. Its solution automatically builds you a clean, on-demand, virus free, new virtual cloud based PC outside of the United States, and wipes it clean...
Aug. 31, 2015 01:45 PM EDT Reads: 425
Culture is the most important ingredient of DevOps. The challenge for most organizations is defining and communicating a vision of beneficial DevOps culture for their organizations, and then facilitating the changes needed to achieve that. Often this comes down to an ability to provide true leadership. As a CIO, are your direct reports IT managers or are they IT leaders? The hard truth is that many IT managers have risen through the ranks based on their technical skills, not their leadership ab...
Aug. 31, 2015 12:30 PM EDT Reads: 362
SYS-CON Events announced today that HPM Networks will exhibit at the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. For 20 years, HPM Networks has been integrating technology solutions that solve complex business challenges. HPM Networks has designed solutions for both SMB and enterprise customers throughout the San Francisco Bay Area.
Aug. 31, 2015 11:30 AM EDT Reads: 897
SYS-CON Events announced today that Micron Technology, Inc., a global leader in advanced semiconductor systems, will exhibit at the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. Micron’s broad portfolio of high-performance memory technologies – including DRAM, NAND and NOR Flash – is the basis for solid state drives, modules, multichip packages and other system solutions. Backed by more than 35 years of tech...
Aug. 31, 2015 11:15 AM EDT Reads: 234
Introducing Containers & Microservices Bootcamp at @CloudExpo Silicon Valley | #Containers #Microservices
SYS-CON Events announced today the Containers & Microservices Bootcamp, being held November 3-4, 2015, in conjunction with 17th Cloud Expo, @ThingsExpo, and @DevOpsSummit at the Santa Clara Convention Center in Santa Clara, CA. This is your chance to get started with the latest technology in the industry. Combined with real-world scenarios and use cases, the Containers and Microservices Bootcamp, led by Janakiram MSV, a Microsoft Regional Director, will include presentations as well as hands-on...
Aug. 31, 2015 10:45 AM EDT Reads: 349
Through WebRTC, audio and video communications are being embedded more easily than ever into applications, helping carriers, enterprises and independent software vendors deliver greater functionality to their end users. With today’s business world increasingly focused on outcomes, users’ growing calls for ease of use, and businesses craving smarter, tighter integration, what’s the next step in delivering a richer, more immersive experience? That richer, more fully integrated experience comes ab...
Aug. 31, 2015 10:30 AM EDT Reads: 662
SYS-CON Events announced today that Pythian, a global IT services company specializing in helping companies leverage disruptive technologies to optimize revenue-generating systems, has been named “Bronze Sponsor” of SYS-CON's 17th Cloud Expo, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. Founded in 1997, Pythian is a global IT services company that helps companies compete by adopting disruptive technologies such as cloud, Big Data, advance...
Aug. 31, 2015 10:15 AM EDT Reads: 309
Cloud and datacenter migration innovator AppZero has joined the Microsoft Enterprise Cloud Alliance Program. AppZero is a fast, flexible way to move Windows Server applications from any source machine – physical or virtual – to any destination server, in any cloud or datacenter, using its patented container technology. AppZero’s container is also called a Virtual Application Appliance (VAA). To facilitate Microsoft Azure onboarding, AppZero has two purpose-built offerings: AppZero SP for Azure,...
Aug. 31, 2015 10:15 AM EDT Reads: 195