|By Hovhannes Avoyan||
|November 7, 2012 08:38 AM EST||
In this article I would like to share the new things in Windows Server 2012 that grabbed my particular attention. It’s not a full list of the new features, which you can find on the Microsoft official site. It’s more like a summary of the more advanced and intriguing new features.
Windows Server 2008 R2 supported live migration, but only if the virtual hard disk’s location remained the same, i.e. SAN. What Windows Server 2012 brings to the scene is the ability to move a virtual machine outside a cluster environment to any other Hyper-V host. You can even move several machines at the same time. The only thing you would need is a shared folder accessible from both locations and then you could move the storage (storage migration) of a virtual machine to a new one. Windows Server 2012 even offers you the ability to do a “Shared Nothing” live migration, meaning the ability to migrate a virtual machine from one host to another, even if they have no connectivity between themselves.
In a typical virtualization infrastructure there are multiple virtual machines sharing the same physical network card. In periods of heavy loads one virtual machine can manipulate the traffic if it needs it, leaving insufficient traffic for the rest of the machines. In Windows Server 2008 R2 you were able to set the maximum bandwidth for each virtual machine, meaning that they couldn’t occupy more of their allocated bandwidth, even if they needed to. However, it was inefficient in situations when the other virtual machines didn’t actually need the rest of the bandwidth. Setting a minimum bandwidth in Windows Server 2012 allows you to specify how much bandwidth each virtual machine needs in order to function. However, these constraints are applied only when there is a conflict in the bandwidth needs of virtual machines. If there is free bandwidth each virtual machine may use it until other virtual machines that are under their minimum bandwidth need it.
Let’s say we have a 1 Gigabit Ethernet card. We specify the minimum bandwidths for Virtual Machine (VM) 1, VM2, and VM3 to be respectively 500 Mb, 300 Mb, and 200 Mb (the sum can’t exceed the total bandwidth of the Ethernet card). In a moment of less activity from VM2 and VM3, VM1 uses 700 Mb of the available bandwidth, VM2 and VM3 use 100 Mb each. However, in the next moment a transaction is processed to VM2 and it needs all its available bandwidth. When that happens, VM2 will first occupy the available 100 Mb, but because it still needs more bandwidth and it’s under its minimum bandwidth of 300 Mb, V1 (as it exceeds its minimum bandwidth) will have to give VM2 100 Mb more.
What it allows you to do is to have multiple virtual networks, possibly with the same IP address schemes, on top of the same physical network. It is really useful for cloud services providers. However, it can be used in businesses as well, for example when HR or Payroll traffic should be totally separated from the rest of the traffic. It also allows you to move virtual machines wherever you need them, despite the physical network, even to the cloud. For this to be possible each virtual machine has two different addresses for each network adapter. One is used for communication with the rest of the virtual machines and hosts in that network and is called Client Address. The other one is called Provider Address and it’s used for communications on the physical network only. These addresses are given so that different clients/departments have specific addresses so that the provider knows which traffic comes from which client/department. This way, the traffic is completely isolated from any other traffic on the physical network.
It allows you to easily do your capacity planning, because it collects information for the use of resources of a virtual machine throughout a period of time. Furthermore, Windows Server 2012 introduces the concept of resource pools. They combine multiple virtual machines belonging to one specific client or used for one specific function and the resource metrics are collected on a per user/function basis. This technique is helpful for IT budgeting needs and for billing customers. The metrics usually being collected are: Average CPU use (for a selected period of time); Average memory use; Minimum memory use; Maximum memory use; Maximum disk allocation; Incoming network traffic; Outgoing network traffic.
Dynamic Host Configuration Protocol (DHCP)
A rogue DHCP server is a fake server which is connected to the network, collects DHCP server requests and responds with incorrect addressing information. Active Directory protects its DHCP service by not allowing other DHCP servers to operate on the network until they are authenticated. However, this does not apply for non-Microsoft-Windows DHCP servers. They could still connect to the network and give addresses. Windows Server 2012 limits this by allowing you to specify which ports can have DHCP servers attached. So if the intruder is attached to any other port, its DHCP fake server packets would be dropped.
They are mainly used when you need point-in-time recovery in case of an error. For example, when you apply a service pack on a production server, you may want to give yourself a backdoor in case something bad happens. You take the snapshot before the service pack installation and if needed, you recover the server with it. What happens if you don’t need it? You’ve monitored the server for a while and everything seems normal after the patch? You don’t need the screenshot anymore. However, in Windows Server 2008 R2 you couldn’t just get rid of it. You would have to pause the virtual machine for a while, making it inaccessible. Windows Server 2012 has a new feature, called Hyper-V Live Merge, which allows you to release the snapshot while the machine continues to run.
Stay tuned to Monitis for our future articles on Windows Server 2012. We will take a deeper look into these and some more advanced new features.Share Now:
The BPM world is going through some evolution or changes where traditional business process management solutions really have nowhere to go in terms of development of the road map. In this demo at 15th Cloud Expo, Kyle Hansen, Director of Professional Services at AgilePoint, shows AgilePoint’s unique approach to dealing with this market circumstance by developing a rapid application composition or development framework.
Dec. 20, 2014 11:00 PM EST Reads: 1,980
SYS-CON Events announced today Isomorphic Software, the global leader in high-end, web-based business applications, will exhibit at SYS-CON's DevOps Summit 2015 New York, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Isomorphic Software is the global leader in high-end, web-based business applications. We develop, market, and support the SmartClient & Smart GWT HTML5/Ajax platform, combining the productivity and performance of traditional desktop software ...
Dec. 20, 2014 11:00 PM EST Reads: 1,813
"BSQUARE is in the business of selling software solutions for smart connected devices. It's obvious that IoT has moved from being a technology to being a fundamental part of business, and in the last 18 months people have said let's figure out how to do it and let's put some focus on it, " explained Dave Wagstaff, VP & Chief Architect, at BSQUARE Corporation, in this SYS-CON.tv interview at @ThingsExpo, held Nov 4-6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
Dec. 20, 2014 12:00 PM EST Reads: 2,541
The major cloud platforms defy a simple, side-by-side analysis. Each of the major IaaS public-cloud platforms offers their own unique strengths and functionality. Options for on-site private cloud are diverse as well, and must be designed and deployed while taking existing legacy architecture and infrastructure into account. Then the reality is that most enterprises are embarking on a hybrid cloud strategy and programs. In this Power Panel at 15th Cloud Expo (http://www.CloudComputingExpo.com...
Dec. 20, 2014 11:30 AM EST Reads: 3,090
"Our premise is Docker is not enough. That's not a bad thing - we actually love Docker. At ActiveState all our products are based on open source technology and Docker is an up-and-coming piece of open source technology," explained Bart Copeland, President & CEO of ActiveState Software, in this SYS-CON.tv interview at DevOps Summit at Cloud Expo®, held Nov 4-6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
Dec. 20, 2014 11:00 AM EST Reads: 2,666
The Internet of Things is not new. Historically, smart businesses have used its basic concept of leveraging data to drive better decision making and have capitalized on those insights to realize additional revenue opportunities. So, what has changed to make the Internet of Things one of the hottest topics in tech? In his session at @ThingsExpo, Chris Gray, Director, Embedded and Internet of Things, discussed the underlying factors that are driving the economics of intelligent systems. Discover ...
Dec. 20, 2014 11:00 AM EST Reads: 2,959
SYS-CON Events announced today that Windstream, a leading provider of advanced network and cloud communications, has been named “Silver Sponsor” of SYS-CON's 16th International Cloud Expo®, which will take place on June 9–11, 2015, at the Javits Center in New York, NY. Windstream (Nasdaq: WIN), a FORTUNE 500 and S&P 500 company, is a leading provider of advanced network communications, including cloud computing and managed services, to businesses nationwide. The company also offers broadband, p...
Dec. 20, 2014 10:45 AM EST Reads: 2,876
The move in recent years to cloud computing services and architectures has added significant pace to the application development and deployment environment. When enterprise IT can spin up large computing instances in just minutes, developers can also design and deploy in small time frames that were unimaginable a few years ago. The consequent move toward lean, agile, and fast development leads to the need for the development and operations sides to work very closely together. Thus, DevOps become...
Dec. 20, 2014 10:00 AM EST Reads: 2,739
Verizon Enterprise Solutions is simplifying the cloud-purchasing experience for its clients, with the launch of Verizon Cloud Marketplace, a key foundational component of the company's robust ecosystem of enterprise-class technologies. The online storefront will initially feature pre-built cloud-based services from AppDynamics, Hitachi Data Systems, Juniper Networks, PfSense and Tervela. Available globally to enterprises using Verizon Cloud, Verizon Cloud Marketplace provides a one-stop shop fo...
Dec. 20, 2014 09:00 AM EST Reads: 2,579
AppZero has announced that its award-winning application migration software is now fully qualified within the Microsoft Azure Certified program. AppZero has undergone extensive technical evaluation with Microsoft Corp., earning its designation as Microsoft Azure Certified. As a result of AppZero's work with Microsoft, customers are able to easily find, purchase and deploy AppZero from the Azure Marketplace. With just a few clicks, users have an Azure-based solution for moving applications to the...
Dec. 20, 2014 09:00 AM EST Reads: 1,617
“In the past year we've seen a lot of stabilization of WebRTC. You can now use it in production with a far greater degree of certainty. A lot of the real developments in the past year have been in things like the data channel, which will enable a whole new type of application," explained Peter Dunkley, Technical Director at Acision, in this SYS-CON.tv interview at @ThingsExpo, held Nov 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
Dec. 20, 2014 08:00 AM EST Reads: 2,148
SYS-CON Events announced today that IDenticard will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. IDenticard™ is the security division of Brady Corp (NYSE: BRC), a $1.5 billion manufacturer of identification products. We have small-company values with the strength and stability of a major corporation. IDenticard offers local sales, support and service to our customers across the United States and Canada...
Dec. 20, 2014 07:00 AM EST Reads: 2,677
SYS-CON Events announced today that AIC, a leading provider of OEM/ODM server and storage solutions, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. AIC is a leading provider of both standard OTS, off-the-shelf, and OEM/ODM server and storage solutions. With expert in-house design capabilities, validation, manufacturing and production, AIC's broad selection of products are highly flexible and are conf...
Dec. 20, 2014 07:00 AM EST Reads: 2,474
Leysin American School is an exclusive, private boarding school located in Leysin, Switzerland. Leysin selected an OpenStack-powered, private cloud as a service to manage multiple applications and provide development environments for students across the institution. Seeking to meet rigid data sovereignty and data integrity requirements while offering flexible, on-demand cloud resources to users, Leysin identified OpenStack as the clear choice to round out the school's cloud strategy. Additional...
Dec. 20, 2014 06:30 AM EST Reads: 2,728
The cloud is becoming the de-facto way for enterprises to leverage common infrastructure while innovating and one of the biggest obstacles facing public cloud computing is security. In his session at 15th Cloud Expo, Jeff Aliber, a global marketing executive at Verizon, discussed how the best place for web security is in the cloud. Benefits include: Functions as the first layer of defense Easy operation –CNAME change Implement an integrated solution Best architecture for addressing network-l...
Dec. 20, 2014 05:00 AM EST Reads: 2,075
“We help people build clusters, in the classical sense of the cluster. We help people put a full stack on top of every single one of those machines. We do the full bare metal install," explained Greg Bruno, Vice President of Engineering and co-founder of StackIQ, in this SYS-CON.tv interview at 15th Cloud Expo, held Nov 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
Dec. 19, 2014 11:45 PM EST Reads: 2,085
DevOps Summit 2015 New York, co-located with the 16th International Cloud Expo - to be held June 9-11, 2015, at the Javits Center in New York City, NY - announces that it is now accepting Keynote Proposals. 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 development cycles that produce software that is obsolete...
Dec. 18, 2014 09:45 PM EST Reads: 1,886
“DevOps is really about the business. The business is under pressure today, competitively in the marketplace to respond to the expectations of the customer. The business is driving IT and the problem is that IT isn't responding fast enough," explained Mark Levy, Senior Product Marketing Manager at Serena Software, in this SYS-CON.tv interview at DevOps Summit, held Nov 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
Dec. 18, 2014 08:00 PM EST Reads: 2,051
Mobile commerce traffic is surpassing desktop, yet less than 20% of sales in the U.S. are mobile commerce sales. In his session at 15th Cloud Expo, Dan Franklin, Segment Manager, Commerce, at Verizon Digital Media Services, defined mobile devices and discussed how next generation means simplification. It means taking your digital content and turning it into instantly gratifying experiences.
Dec. 18, 2014 12:00 PM EST Reads: 1,934