|By Carla Safigan||
|August 16, 2008 05:30 PM EDT||
Finding the appropriate virtualization technology to fit an organization's requirements depends on the needs of the environment, combined with the feature sets of each virtualization architecture. Oftentimes, organizations find that a single approach doesn't complete the picture and multiple virtualization technologies are required.
The two basic server virtualization architectures, hardware and operating systems (OS), are each designed with different workloads and environments in mind. Some environments are more suited to OS virtualization, specifically those with naturally high levels of homogeneity or those with requirements for high-performance or consolidation ratios. Other environments, where varying OS support is a high priority, may work better with hardware virtualization.
- Hardware Virtualization: This approach virtualizes the entire server from the hardware up to the software stack. This architecture solves many problems associated with consolidation of different computing environments on a single physical server.
- OS Virtualization: OS virtualization resides on top of an OS and leverages the underlying hardware and software. This concept provides ultra-high consolidation ratios and resource efficiency for many computing environments.
It's All About the Layer
When it comes to virtualization products and solutions, it's all about the layer. The "layer" refers to the level at which the virtualization occurs. Hypervisor-based hardware virtualization solutions include their layer of processing either above an existing operating system or directly on top of the hardware, an approach known as "bare metal."
Putting the hypervisor in close proximity to the physical hardware enables it to robustly support multiple operating systems on a single physical host. Those individual virtual machines are fully independent from each other and don't rely on any other machines for their composition or processing.
This complete isolation from individual virtual machines is hardware virtualization's greatest strength and greatest area of management complexity. As virtual machines are effectively segregated units, they must be managed similarly to segregated physical machines. Patching, software management, resource allocation, and security are all horizontally scaled as the number of virtual machines increases. This can lead to a virtual "sprawl" of devices to manage as the environment scales. In effect, the same level of management effort is required as compared with physical machines because each virtual machine is managed individually.
Compare this scenario to what is experienced in environments that leverage OS virtualization, or containers, where the layer operates atop an existing full operating system, such as Microsoft Windows or Red Hat Linux. Rather than making use of a hypervisor layer, it uses the virtualization layer as a mechanism for extending the resources of a single operating system to multiple, isolated, additional virtual systems that all reside on the same host.
19th Cloud Expo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, 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. Meanwhile, 94% of enterpri...
Aug. 24, 2016 03:30 AM EDT Reads: 2,896
Using new techniques of information modeling, indexing, and processing, new cloud-based systems can support cloud-based workloads previously not possible for high-throughput insurance, banking, and case-based applications. In his session at 18th Cloud Expo, John Newton, CTO, Founder and Chairman of Alfresco, described how to scale cloud-based content management repositories to store, manage, and retrieve billions of documents and related information with fast and linear scalability. He addres...
Aug. 24, 2016 02:45 AM EDT Reads: 1,772
Akana has announced the availability of version 8 of its API Management solution. The Akana Platform provides an end-to-end API Management solution for designing, implementing, securing, managing, monitoring, and publishing APIs. It is available as a SaaS platform, on-premises, and as a hybrid deployment. Version 8 introduces a lot of new functionality, all aimed at offering customers the richest API Management capabilities in a way that is easier than ever for API and app developers to use.
Aug. 24, 2016 02:00 AM EDT Reads: 1,377
Personalization has long been the holy grail of marketing. Simply stated, communicate the most relevant offer to the right person and you will increase sales. To achieve this, you must understand the individual. Consequently, digital marketers developed many ways to gather and leverage customer information to deliver targeted experiences. In his session at @ThingsExpo, Lou Casal, Founder and Principal Consultant at Practicala, discussed how the Internet of Things (IoT) has accelerated our abil...
Aug. 24, 2016 01:45 AM EDT Reads: 1,841
Kubernetes, Docker and containers are changing the world, and how companies are deploying their software and running their infrastructure. With the shift in how applications are built and deployed, new challenges must be solved. In his session at @DevOpsSummit at19th Cloud Expo, Sebastian Scheele, co-founder of Loodse, will discuss the implications of containerized applications/infrastructures and their impact on the enterprise. In a real world example based on Kubernetes, he will show how to ...
Aug. 24, 2016 01:45 AM EDT Reads: 1,250
With so much going on in this space you could be forgiven for thinking you were always working with yesterday’s technologies. So much change, so quickly. What do you do if you have to build a solution from the ground up that is expected to live in the field for at least 5-10 years? This is the challenge we faced when we looked to refresh our existing 10-year-old custom hardware stack to measure the fullness of trash cans and compactors.
Aug. 24, 2016 01:00 AM EDT Reads: 1,571
SYS-CON Events announced today that Isomorphic Software will exhibit at DevOps Summit at 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Isomorphic Software provides the SmartClient HTML5/AJAX platform, the most advanced technology for building rich, cutting-edge enterprise web applications for desktop and mobile. SmartClient combines the productivity and performance of traditional desktop software with the simp...
Aug. 24, 2016 12:45 AM EDT Reads: 2,041
The emerging Internet of Everything creates tremendous new opportunities for customer engagement and business model innovation. However, enterprises must overcome a number of critical challenges to bring these new solutions to market. In his session at @ThingsExpo, Michael Martin, CTO/CIO at nfrastructure, outlined these key challenges and recommended approaches for overcoming them to achieve speed and agility in the design, development and implementation of Internet of Everything solutions wi...
Aug. 24, 2016 12:30 AM EDT Reads: 1,840
Cloud computing is being adopted in one form or another by 94% of enterprises today. Tens of billions of new devices are being connected to The Internet of Things. And Big Data is driving this bus. An exponential increase is expected in the amount of information being processed, managed, analyzed, and acted upon by enterprise IT. This amazing is not part of some distant future - it is happening today. One report shows a 650% increase in enterprise data by 2020. Other estimates are even higher....
Aug. 24, 2016 12:00 AM EDT Reads: 2,789
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. 23, 2016 11:30 PM EDT Reads: 2,205
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. 23, 2016 11:00 PM EDT Reads: 3,480
Qosmos has announced new milestones in the detection of encrypted traffic and in protocol signature coverage. Qosmos latest software can accurately classify traffic encrypted with SSL/TLS (e.g., Google, Facebook, WhatsApp), P2P traffic (e.g., BitTorrent, MuTorrent, Vuze), and Skype, while preserving the privacy of communication content. These new classification techniques mean that traffic optimization, policy enforcement, and user experience are largely unaffected by encryption. In respect wit...
Aug. 23, 2016 09:15 PM EDT Reads: 1,641
"My role is working with customers, helping them go through this digital transformation. I spend a lot of time talking to banks, big industries, manufacturers working through how they are integrating and transforming their IT platforms and moving them forward," explained William Morrish, General Manager Product Sales at Interoute, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Aug. 23, 2016 09:00 PM EDT Reads: 2,969
Internet of @ThingsExpo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with the 19th International Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world and ThingsExpo Silicon Valley Call for Papers is now open.
Aug. 23, 2016 08:45 PM EDT Reads: 3,745
To leverage Continuous Delivery, enterprises must consider impacts that span functional silos, as well as applications that touch older, slower moving components. Managing the many dependencies can cause slowdowns. See how to achieve continuous delivery in the enterprise.
Aug. 23, 2016 08:15 PM EDT Reads: 1,395