|By Brad Vaughan||
|March 17, 2011 11:30 AM EDT||
There is a common question that almost universally arises when people discuss cloud computing. The question came up in a webinar I did with Rackspace last week. It was featured in regular conversation at Cloud Connect and then again on Twitter from Adrian Cockcroft. The question was framed like;
- "There is no technical reason for private cloud, it's all $, FUD, and internal politics. Discuss." - Adrian Cockcroft,
- Do you think there is a need for private clouds (vs. public)?
Important to note we are not talking whether they should run on a cloud. This argument only applies to applications and workloads that have already been determined to be a good fit for cloud.
The second question is more easily answered as it alludes to diverse organizational requirements that are unable to be serviced by a commodity service, or the natural inertia of organizations to adopt new methods. The arguments for adoption of private cloud over public cover a range of topics, including:
- Service level agreements
- Security needs
- Migration costs
- And many more
The more meaty argument is Adrian's. Is there any "technical reason" for not running on public cloud? This challenges us to try and determine if there are architectural patterns that public clouds cannot provide.
Adrian is royalty in the realm of cloud (I prefer "royalty" because it reflects respect for his achievement and position, instead of the term "clouderati," which reflects some sort of enlightenment), but his question is a little sensational. First of all it is so broad, it's difficult to support or refute. Second, it encompasses the future, for which anything is possible. He blogs in more detail here.
But, for what it's worth, here are my thoughts. Public clouds are designed on one basic premise that differentiates them from a private cloud - "Economies of Scale." Having enough workload running in a multi-tenancy environment will balance out noise in the elasticity of workload and also drive down costs for the operation of the infrastructure. So for a private cloud to exist technically, it needs;
- Enough volume to have economies of scale internally
- Workload elasticity to warrant a cloud
- A specific technical requirement that does not warrant economies of scale publicly
I am an architectural pragmatist. Sometimes the cloud debate gets a bit more religious and I feel more like an atheist or a nihilist. I do believe that infrastructure (compute, storage, network & operating systems) and the workloads it is able to support are sufficiently complex to represent a distribution curve of requirements. The amount that can be served by public clouds represents the meat in the middle of the curve. This curve might have an extremely narrow peak, but the tails still exist.
The argument will be that there are many different public clouds, and they can service a wide range of technical requirements, but I still believe that the underlying architecture patterns are complex enough to reveal patterns that cannot be provided in volume.
The other issue I have with economies of scale solutions is they inherently develop lowest common denominator architecture. The non-technical aspects of public clouds limit their ability to solve for all workloads.
In closing, I will try and give examples of workloads that need private clouds:
- Slot machine gaming software - very elastic workload with very specific technical requirements for security, auditability and physical machine interface. I cannot see this being supported by a public cloud.
- Online gaming - take a large Facebook-based games company. Lots of elastic workloads, but all with a very close correlation architecturally to each other. They have the economies of scale on their own to get the benefits of efficient operations. I can see them developing a private cloud that is optimized for their unique technical requirements while providing a high degree of automation to get better efficiencies than a public cloud.
In the end, I don't see public vs private cloud as a war. Maybe more of an argument for tolerance and an endorsement of the adage "to each his own".
DevOps at Cloud Expo – being held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA – announces that its Call for Papers is open. Born out of proven success in agile development, cloud computing, and process automation, DevOps is a macro trend you cannot afford to miss. From showcase success stories from early adopters and web-scale businesses, DevOps is expanding to organizations of all sizes, including the world's largest enterprises – and delivering real results. Am...
Aug. 27, 2016 02:45 PM EDT Reads: 3,437
I wanted to gather all of my Internet of Things (IOT) blogs into a single blog (that I could later use with my University of San Francisco (USF) Big Data “MBA” course). However as I started to pull these blogs together, I realized that my IOT discussion lacked a vision; it lacked an end point towards which an organization could drive their IOT envisioning, proof of value, app dev, data engineering and data science efforts. And I think that the IOT end point is really quite simple…
Aug. 27, 2016 12:45 PM EDT Reads: 2,332
Internet of @ThingsExpo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 19th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The Internet of Things (IoT) is the most profound change in personal and enterprise IT since the creation of the Worldwide Web more than 20 years ago. All major researchers estimate there will be tens of billions devices - comp...
Aug. 27, 2016 12:30 PM EDT Reads: 3,609
StarNet Communications Corp has announced the addition of three Secure Remote Desktop modules to its flagship X-Win32 PC X server. The new modules enable X-Win32 to safely tunnel the remote desktops from Linux and Unix servers to the user’s PC over encrypted SSH. Traditionally, users of PC X servers deploy the XDMCP protocol to display remote desktop environments such as the Gnome and KDE desktops on Linux servers and the CDE environment on Solaris Unix machines. XDMCP is used primarily on comp...
Aug. 27, 2016 12:00 PM EDT Reads: 628
Traditional on-premises data centers have long been the domain of modern data platforms like Apache Hadoop, meaning companies who build their business on public cloud were challenged to run Big Data processing and analytics at scale. But recent advancements in Hadoop performance, security, and most importantly cloud-native integrations, are giving organizations the ability to truly gain value from all their data. In his session at 19th Cloud Expo, David Tishgart, Director of Product Marketing ...
Aug. 27, 2016 12:00 PM EDT Reads: 480
SYS-CON Events announced today that eCube Systems, a leading provider of middleware modernization, integration, and management solutions, will exhibit at @DevOpsSummit at 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. eCube Systems offers a family of middleware evolution products and services that maximize return on technology investment by leveraging existing technical equity to meet evolving business needs. ...
Aug. 27, 2016 12:00 PM EDT Reads: 621
The 19th International Cloud Expo has announced that its Call for Papers is open. Cloud Expo, to be held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, brings together Cloud Computing, Big Data, Internet of Things, DevOps, Digital Transformation, 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 opportuni...
Aug. 27, 2016 11:00 AM EDT Reads: 3,964
DevOps at Cloud Expo, taking place Nov 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 19th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The widespread success of cloud computing is driving the DevOps revolution in enterprise IT. Now as never before, development teams must communicate and collaborate in a dynamic, 24/7/365 environment. There is no time to wait for long dev...
Aug. 27, 2016 11:00 AM EDT Reads: 2,347
Aspose.Total for .NET is the most complete package of all file format APIs for .NET as offered by Aspose. It empowers developers to create, edit, render, print and convert between a wide range of popular document formats within any .NET, C#, ASP.NET and VB.NET applications. Aspose compiles all .NET APIs on a daily basis to ensure that it contains the most up to date versions of each of Aspose .NET APIs. If a new .NET API or a new version of existing APIs is released during the subscription peri...
Aug. 27, 2016 10:30 AM EDT Reads: 1,959
Data is the fuel that drives the machine learning algorithmic engines and ultimately provides the business value. In his session at Cloud Expo, Ed Featherston, a director and senior enterprise architect at Collaborative Consulting, will discuss the key considerations around quality, volume, timeliness, and pedigree that must be dealt with in order to properly fuel that engine.
Aug. 27, 2016 10:15 AM EDT Reads: 1,893
SYS-CON Events announced today that StarNet Communications will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. StarNet Communications’ FastX is the industry first cloud-based remote X Windows emulator. Using standard Web browsers (FireFox, Chrome, Safari, etc.) users from around the world gain highly secure access to applications and data hosted on Linux-based servers in a central data center. ...
Aug. 27, 2016 08:45 AM EDT Reads: 759
SYS-CON Events announced today that Hitrons Solutions will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Hitrons Solutions Inc. is distributor in the North American market for unique products and services of small and medium-size businesses, including cloud services and solutions, SEO marketing platforms, and mobile applications.
Aug. 27, 2016 08:00 AM EDT Reads: 607
Pulzze Systems was happy to participate in such a premier event and thankful to be receiving the winning investment and global network support from G-Startup Worldwide. It is an exciting time for Pulzze to showcase the effectiveness of innovative technologies and enable them to make the world smarter and better. The reputable contest is held to identify promising startups around the globe that are assured to change the world through their innovative products and disruptive technologies. There w...
Aug. 27, 2016 07:45 AM EDT Reads: 672
As the world moves toward more DevOps and Microservices, application deployment to the cloud ought to become a lot simpler. The Microservices architecture, which is the basis of many new age distributed systems such as OpenStack, NetFlix and so on, is at the heart of Cloud Foundry - a complete developer-oriented Platform as a Service (PaaS) that is IaaS agnostic and supports vCloud, OpenStack and AWS. Serverless computing is revolutionizing computing. In his session at 19th Cloud Expo, Raghav...
Aug. 27, 2016 07:45 AM EDT Reads: 792
Today we can collect lots and lots of performance data. We build beautiful dashboards and even have fancy query languages to access and transform the data. Still performance data is a secret language only a couple of people understand. The more business becomes digital the more stakeholders are interested in this data including how it relates to business. Some of these people have never used a monitoring tool before. They have a question on their mind like “How is my application doing” but no id...
Aug. 27, 2016 03:15 AM EDT Reads: 1,782