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Windows Server unleashed Item Preview. EMBED for wordpress. Want more? Advanced embedding details, examples, and help! Every chapter contains tips, tricks, best practices, and lessons learned from actual deployments "First printing September There are no reviews yet. Be the first one to write a review. Books for People with Print Disabilities. Internet Archive Books. Microsoft leads the pack regarding server operating systems, and the company has been working hard to create robust operating systems that can handle and manage enormous servers.

Server systems are now essential for most businesses, so understanding a server operating system is necessary. You will be able to understand the OS better after thoroughly understanding it. Additionally, the OS has many new features and is still supported until , so consumers may get a copy of the OS and start immediately. This is the fifth version of the Windows Server OS to be released. The OS had several new and improved capabilities that made it easier for users to manage and maintain large server systems.

The most widely used and most successful computing architecture at the time was the bit model. As a result, thanks to Windows Server bit architecture , overall performance was significantly improved. Learn how to download and install the operating system by following this guide. Windows Server bit ISO had several significant changes to the operating system in A list of the new features that have been added to make it a better OS follows.

The metro user interface, as found in Windows 8, has been integrated into Windows Server , a significant step forward for server operating systems.

The user interface has been kept to a minimum to make the app easier. There are two ways to install Windows Server In Windows Server OS, you can enjoy an entirely new task manager in which there are a lot of features such as tabs that are hidden by default, and process displays in various shades of yellow, with the darkest representing the highest utilization of resources.

Adding automation and elastic capacity management to this helps keep operational costs lower. Reuse and re-provisioning of cloud applications and services can help lower development costs across your organization, making your development cycle more cost effective.

And a pay-as-you-go approach to consuming cloud services can help your business achieve greater lexibility and become more innovative, making entry into new markets possible. Cloud computing also can help businesses increase customer satisfaction by enabling solutions that have greater responsiveness to customer needs. Decoupling applications from physical infrastructure improves availability and makes it easier to ensure business continuity when a disaster happens. And risk can be managed more systematically and effectively to meet regulatory requirements.

Making the transition Making the transition from a traditional IT infrastructure to the cloud paradigm begins with rethinking and re-envisioning what IT is all about. Virtualization can increase the eficiency of this approach by allowing consolidation of server workloads to increase system utilization and reduce cost, but even a virtualized datacenter still has a server-centric infrastructure that requires a high degree of management overhead.

The results of the service-centric model of computing can be increased productivity with less overhead because users can work from anywhere, using any capable device, without having to worry about deploying the applications they need to do their job. The bottom line here is that businesses considering making the transition to the cloud need to rethink their understanding of IT from two perspectives: the type of sourcing and the kinds of services being consumed.

Cloud sourcing models Cloud sourcing models deine the party that has control over how the cloud services are architected, controlled, and provisioned. For example, Microsoft Windows Azure and Microsoft SQL Azure are public cloud offerings that allow you to develop, deploy, and run your business applications over the Internet instead of hosting them locally on your own datacenter. By adopting this approach, you can gain increased lexibility, easier scalability, and greater agility for your business.

A private cloud can be implemented in two ways: by combining different software platforms and applications, or by procuring a dedicated cloud environment in the form of an appliance from a vendor. For example, customers have already been using the Hyper-V virtualization capabilities successfully in the Microsoft Windows Server R2 platform, with the Microsoft System Center family of products, to design, deploy, and manage their own private clouds.

The private cloud approach allows you the peace of mind of knowing you have complete control over your IT infrastructure, but it has higher up-front costs and a steeper implementation curve than the public cloud approach. As you will soon see, however, the next generation of Hyper-V in the Windows Server platform delivers even more powerful capabilities that enable customers to deploy and manage private clouds.

Organizations that want to make the transition from traditional IT to cloud computing often begin by embracing the hybrid cloud approach because it allows them to get their feet wet while remaining grounded in the comfort of their existing server-centric infrastructure. One dificulty with the hybrid cloud approach, however, is the management overhead associated with needing duplicate sets of IT controls, one set for traditional infrastructure and others for each kind of cloud service consumed.

Cloud service models Cloud computing also can be considered from the perspective of which kinds of services are being consumed. The advantages of the SaaS model is that application activities can be managed from a single central location to reduce cost and management overhead.

SaaS typically is used to deliver cloud-based applications that have minimal support for customization, such as email, Customer Relationship Management CRM , and productivity software. By using PaaS, you can develop custom cloud-based applications for your business and then host them in the cloud so that users can access them anywhere over the Internet.

PaaS also can be used to create multi-tenant applications that multiple users can access simultaneously. And with its high degree of support for application-level customization, PaaS can enable integration with your older applications and interoperability with your on-premises systems, though some applications may need to be recoded to work in the new environment.

IaaS forms the foundation for SaaS and PaaS by providing a standardized, lexible virtualized environment that typically presents itself to the customer as virtualized server workloads. In the IaaS model, the customer can self-provision these virtualized workloads and can customize them fully with the processing, storage, and network resources needed and with the operating system and applications the business requires. By using the IaaS approach, the customer is relieved of the need to purchase and install hardware and can spin up new workloads to meet changing demand quickly.

Figure illustrates the three standard service models for implementing private and public cloud solutions. SaaS — the software The cloud provider runs the application while the customer consumes the application as a service on a subscription basis.

In the IaaS approach, you build the entire architecture yourself for example, with load-balanced web servers for the front end and clustered servers for your business and data tiers on the back end. In fact, the only difference between IaaS and a traditional datacenter is that the apps are running on servers that are virtual instead of physical.

By contrast, PaaS is a completely different architecture. Then, when you have spikes in demand think the holiday season for a retail website , the system automatically scales up to meet the demand and then scales back down again when demand tapers off. These two components, therefore, form the foundation of any type of cloud solution—public, private, or hybrid.

What attributes must such a platform have to be suitable for building cloud solutions? As we will soon see, however, Windows Server now brings even more to the table for building highly scalable and elastic cloud solutions, making it the irst truly cloud-optimized server operating system. The second component for building a cloud is the management part, and here, System Center provides the most comprehensive cloud and datacenter management solution available in the marketplace.

The business need for Windows Server C loud computing in general, and private clouds in particular, have emerged as a response to the high cost and lack of agility of traditional approaches to IT. The needs of IT users and the rate of technological change have increased signiicantly. At the same time, the need to improve IT eficiency and reduce costs are high-priority objectives in most businesses today.

Server consolidation through virtualization has been a key driver of cost savings over the past several years. Windows Server and Hyper-V provide signiicant improvements in scalability and availability, which enables much higher consolidation ratios. Combined with the lexibility of unlimited VM licensing in some Windows SKUs, high-density virtualization can reduce costs signiicantly. With Windows Server and Hyper-V supporting clusters up to 64 nodes running up to 4, VMs and up to 1, active VMs per host, a relatively small amount of physical hardware can support a large amount of IT capability.

Further improving the consolidation story is the ability to run signiicantly larger VMs, resulting in a higher percentage of physical servers being candidates for virtualization. Examples include large database servers or other high-scale workloads that previously could not be virtualized. In addition to scale, a substantial number of new capabilities in the Windows Server and Hyper-V platform enable cloud computing scenarios.

Deinitions of cloud computing vary; however, one of the most commonly utilized deinitions is from the U. These attributes enable the agility and cost savings expected from cloud solutions. A key tenet of Windows Server is to go beyond virtualization. What this means is providing the foundational technologies and features that enable cloud attributes such as elasticity, resource pooling, and measured service, while providing signiicant advancements in the virtualization platform.

Other technologies, such as DirectAccess, enable secure remote connectivity to internal resources without the need for virtual private networks VPNs. Improvements to Live Migration enable VMs and their associated storage to be moved to any Hyper-V host in the datacenter with a network connection. Combined, these technologies allow standardization across the physical and virtual infrastructure with the ability of VMs to be distributed optimally and dynamically across the datacenter.

Thin provisioning and data de-duplication enable elasticity without immediate consumption of physical resources. Resource metering enables scenarios such as chargeback reporting based on central processing unit CPU utilization, memory utilization, or other utilization-based metrics.

In addition to advanced server consolidation and cloud attributes that help drive down IT cost and increase agility, Windows Server provides the capability to reduce ongoing operational expenses OpEx by providing a high degree of automation and the ability to manage many servers as one. A key cost metric in IT is the number of servers that an individual administrator can manage. This reduces the amount of administrator effort required, enabling administrators to focus on higher-value activities.

Taken together, the capabilities provided by Windows Server deliver the essential cloud attributes and the foundation for signiicant improvements in both IT cost and agility. David Ziembicki Senior Architect, U. The remaining chapters of this book will explore the powerful new features and capabilities of this cloud-optimized operating system in more detail, along with hands-on insights from insiders at Microsoft who have developed, tested, and deployed Windows Server and for select customers during product development.

Foundation for building your private cloud Although previous versions of Windows Server have included many capabilities needed for implementing different cloud computing scenarios, Windows Server takes this a step further by providing a foundation for building dynamic, multi-tenant cloud environments that can scale to meet the highest business needs while helping to reduce your infrastructure costs. Hyper-V in Windows Server R2 has already helped many businesses reduce their operational costs through server consolidation.

The next version of Hyper-V, together with other key features of Windows Server , goes even further by enabling you to secure virtualized services by isolating them effectively, migrate running VMs with no downtime even outside of clusters, create replicas of virtualized workloads for offsite recovery, and much more.

The result is to provide a platform that is ideal as a foundation for building private clouds for even the largest enterprises. Network Virtualization, a new feature of Hyper-V, lets you isolate network trafic from different business units without the complexity of needing to implement and manage virtual local area networks VLANs.

Network Virtualization also makes it easier to integrate your existing private networks into a new infrastructure by enabling you to migrate VMs while preserving their existing virtual network settings. And network quality of service QoS has been enhanced in Windows Server to enable you to guarantee a minimum amount of bandwidth to VMs and virtual services so that service level agreements can be achieved more effectively and network performance can have greater predictability.

Being able to manage and secure network connectivity resources effectively are an important factor when designing cloud solutions, and these capabilities of Windows Server make this possible. Windows Server also helps you scale your environment better, achieve greater performance levels, and use your existing investments in enterprise storage solutions.

With greatly expanded support for host processors and memory, your virtualization infrastructure now can support very large VMs that need the highest levels of performance and workloads that require the ability to increase signiicantly in scale. Businesses that have already invested in Fibre Channel storage arrays for their existing infrastructures can beneit from Virtual Fibre Channel, a new feature of Hyper-V that lets you directly connect to your storage area network SAN from within the guest operating system of your VMs.

You also can use Virtual Fibre Channel to virtualize any server workloads that directly access your SAN, enabling new ways of reducing costs through workload virtualization. You also can cluster guest operating systems over Fibre Channel, which provides new infrastructure options you can explore. And the built-in ODX support ensures that your VMs can read and write to SAN storage at performance levels matching that of physical hardware, while freeing up the resources on the system that received the transfer.

With storage a key resource for any cloud solution, these improvements make Windows Server an effective platform for building clouds. Windows Server also provides a common identity and management framework that supports federation, enables cross-premises connectivity, and facilitates data protection.

Active Directory Federation Services AD FS is now built into the product and provides a foundation for extending Active Directory identities to the cloud, allowing for single sign-on SSO to resources both on-premises and in the cloud. Site-to-site VPNs can be established to provide cross-premises connectivity between your on-premises infrastructure and hosting providers you purchase cloud services from.

You even can connect directly to private subnets within a hosted cloud network, using your existing networking equipment that uses industry-standard IKEv2-IPsec protocols. And you can enhance business continuity and simplify disaster recovery by using the new Hyper-V Replica feature that provides asynchronous replication of virtual machines over IP-based networks to remote sites.

All these features help provide the foundation that you need to build your private cloud. Highly available, easy-to-manage multi-server platform Cost is the bottom line for most businesses, and even though virtualization has allowed many organizations to tap into eficiencies that have helped them do more with less with their datacenters, maintaining these eficiencies and preventing interruptions due to failures, downtimes, and management problems remain a key priority.

Windows Server helps you address these issues by providing enhanced availability features, more lexible storage options, and powerful new management capabilities.

Live Storage Migration simpliies the task of migrating or upgrading storage when you need to perform maintenance on your SAN or ile-based storage array, or when you need to redistribute the load.

Built-in NIC teaming gives you fault-tolerant networking without the need to use third-party solutions, and it also helps ensure availability by preventing connectivity from being lost when a network adapter fails. And availability can be further enhanced through transparent failover, which lets you move ile shares between cluster nodes with no interruption to applications accessing data on these shares.

These improvements can provide beneits for both virtualized datacenters and for the cloud. The new Storage Spaces feature provides built-in storage virtualization capabilities that enable lexible, scalable, and cost-effective solutions to meet your storage needs. Reducing cost is key for enterprises, whether they still have traditional IT infrastructures or have deployed private clouds.

Windows Server also includes features that make management and automation more eficient. The new Server Manager takes the pain out of deploying and managing large numbers of servers by simplifying the task of remotely deploying roles and features on both physical and virtual servers. Server Manager also can be used to perform scenario-based deployments of the Remote Desktop Services role, for example to set up a session virtualization infrastructure or a virtual desktop infrastructure VDI environment quickly.

PowerShell 3. PowerShell worklows let you perform complex management tasks that require machines to be rebooted. Scheduled jobs can run regularly or in response to a speciic event. Delegated credentials can be used so that junior administrators can perform mission-critical tasks. All these improvements can bring you closer to running your datacenter or private cloud as a truly lights-out automated environment. Deploy web applications on-premises and in the cloud The web platform is key to building a cloud solution.

Windows Server includes web platform enhancements that provide the kind of lexibility, scalability, and elasticity that your business needs to host web applications for provisioning cloud-based applications to business units or customers. Windows Server is also an open web platform that embraces a broad range of industry standards and supports many third-party platforms and tools so that you can choose whatever best suits the development needs for your business. Because most organizations are expected to follow the hybrid cloud approach that combines together both on-premises infrastructure and cloud services, eficiencies can be gained by using development symmetry that lets you build applications that you can deploy both on-premises and in the cloud.

Building on the proven application platform of earlier Windows Server versions, Windows Server adds new features and enhancements to enable service providers to host large numbers of websites while guaranteeing customers predictable service levels. These improvements make Windows Server the ideal platform for building and managing hosting environments and public clouds. This capability enables your web applications to scale up quickly to meet sudden spikes in demand.

You also can use IIS CPU throttling to ensure that applications always get their fair share of processor time by specifying a maximum CPU usage for each application pool. IIS 8. NET 4. And support for the industry-standard WebSocket protocol enables encrypted data transfer over real-time bidirectional channels to support AJAX client applications running in the browser.

All these features and enhancements provide lexibility for building highly scalable web applications, hosted either on-premises or in the cloud. The days of IT having full control over all user devices in their infrastructure are probably over, with the exception of certain high-security environments in the government, military, and inance sectors.

Accepting these changes requires not just new thinking but new technology, and Windows Server brings features that can help IT address this issue by enabling IT to deliver on-premises and cloud-based services to users while maintaining control over sensitive corporate data. Setting up traditional VPN connections is also simpler in Windows Server for organizations that need to maintain compatibility with existing systems or policies.

BranchCache has been enhanced in Windows Server to make it scale greater, perform better, and be managed more easily. Deploying BranchCache is now much simpler and enables users to run applications remotely and access data more eficiently and securely than before.

And as previously mentioned in this chapter, Server Manager now lets you perform scenario-based deployments of the Remote Desktop Services role to implement session virtualization or VDI in your environment more easily. To remain productive as they roam between locations and use different devices, users need to be able to access their data using the full Windows experience.

New features and improvements in Windows Server now make this possible from any location on almost any device. Universal serial bus USB is now supported for session virtualization, allowing users to use their USB lash drives, smartcards, webcams, and other devices when connecting to session hosts. And VDI now includes user VHDs for storing user personalization settings and cached application data so that the user experience can be maintained across logons. Windows Server also gives you greater control over your sensitive corporate data to help you safeguard your business and meet the needs of compliance.

Central access policies can be used to deine who is allowed to access information within your organization. Central audit policies have been enhanced to facilitate compliance reporting and forensic analysis. The Windows authorization and audit engine has been re-architected to allow the use of conditional expressions and central policies. Kerberos authentication now supports both user and device claims.

Up next The chapters that follow will dig deeper into these different ways that Windows Server can deliver value by examining in more detail the new features and capabilities of this cloud-optimized platform.

Each chapter also includes sidebars written by insiders on the Windows Server team at Microsoft, by Microsoft Consulting Services experts in the ield, and by Microsoft Support engineers who have been working with the platform from Day 1.

With enhancements to Hyper-V virtualization, improvements in scalability and performance, and business continuity support for virtualized workloads, Windows Server provides a solid foundation for building dynamic, highly scalable multi-tenant cloud environments.

Windows Server The foundation for building your private cloud D elivering a solid foundation for a private cloud requires a robust virtualization platform, scalability with great performance, and the ability to span datacenters and integrate with other clouds. Windows Server was designed to address key private cloud needs through advances in computer, storage, and Network Virtualization.

Compute virtualization, provided by Hyper-V in Windows Server , has been improved to support signiicantly larger host servers and guest virtual machines VMs. This increases the range of workloads that can be virtualized. Large increases in Hyper-V scalability and Dynamic Memory provide for much higher density of VMs per server with larger clusters. VM mobility through Live Migration and live storage migration, regardless of whether the VM is hosted on a cluster, enable a number of new scenarios for optimization of resources in private cloud scenarios.

These technologies enable a tenant to utilize their own IP addressing schemes, even if it overlaps with other tenants, while maintaining separation and security. Win- dows Server also introduces a new extensible virtual switch. The extensible switch delivers new capabilities such as port proiles and is a platform that third parties can use to build switch extensions for tasks like trafic monitoring, intru- sion detection, and network policy enforcement.

In both private cloud scenarios and hosting scenarios, secure multi-tenancy is often a requirement. Windows Server networking technologies provide for shared infra- structure and resource pooling while enabling secure multi-tenancy.

Storage virtualization is a major investment area in Windows Server This storage platform allows Hyper-V VMs to be run from Windows Server continuously available ile shares on Windows storage spaces. Such shares can be accessed using the new SMB 3 protocol, which when combined with appropriate network hardware, provides high-speed, low-latency, multichannel-capable storage access.

These technologies provide a robust storage platform at a cost point much lower than was previously possible. Another critical component of a private cloud infrastructure is disaster recovery capability. Windows Server introduces the Hyper-V Replica feature, which allows VMs to be replicated to disaster recovery sites, which reduces the time required to restore service should a primary datacenter suffer a disaster. With the large number of new features and improvements, automation becomes a critical requirement, both for consistency of deployment and for eficiency in operations.

Windows Server includes about 2, new Windows PowerShell cmdlets for managing the various roles and features in the platform. Windows PowerShell can be used either directly or through Microsoft and third-party management systems to automate deployment, coniguration, and operations tasks.

The new Server Manager in Windows Server allows multiple servers to be grouped and managed as one. The objective of these improvements is to increase administrator eficiency by increasing the number of servers each administrator can manage.

For a large, centralized enterprise, large-scale ile and Hyper-V clusters can deliver a platform able to run thousands or tens of thousands of highly available VMs. With continuously available ile shares for storing VMs combined with Live Migration and Live Storage Migration, VMs can be moved anywhere in the datacenter with no downtime.

The compute, network, and storage virtualization provided by Windows Server deliver resource pooling, elasticity, and measured service cloud attributes. These capabilities are further improved by disaster recovery and automation technologies. With these and other features, Windows Server delivers the foundation for the private cloud. Public Sector, Microsoft Services A complete virtualization platform Virtualization can bring many beneits for businesses, including increased agility, greater lexibility, and improved cost eficiency.

Hosting providers also can use Windows Server to build multi-tenant cloud infrastructures both public and shared private clouds that they can use to deliver cloud-based applications and services to customers. Features and tools included in Windows Server enable hosting providers to fully isolate customer networks from one another, deliver support for service level agreements SLAs , and enable chargebacks for implementing usage-based customer billing.

Windows Server is the result of a large engineering effort, and in past releases, each organization delivered its own technology innovations and roadmap in its respectively relevant area. The networking team would build great networking features; the storage team would innovate on ile and storage systems; the manageability team would introduce Windows PowerShell to enable a standard way to manage servers, and so on.

Windows Server is different. Instead of having vertical technology-focused roadmaps and designs, it was built around speciic customer scenarios for the server. Scenario-focused design starts by understanding the business need and the real customer pain points and requirements.

During the planning phase, we talked to a very long list of customers and did not limit ourselves to any speciic technology. Instead, we have framed the discussion around the need to build and run clouds and discovered pain points, such as the need to offer secure multi-tenancy and isolation to your cloud tenants, so that hosting providers can be more eficient in utilizing their infrastructure and lowering their cost.

We then translated that understanding into investments that cross technology boundaries that will solve those business problems and satisfy the customer requirements. Then we added quality of service QoS policies to help hosting providers ensure proper SLAs for different tenants and resource meters to enable them to measure and charge for activities, and we also ensured that everything will be fully automatable via Windows PowerShell, of course , in a consistent way.

This way, competitive performance compared to SANs is made available at a fraction of the cost. Basically, at every stage of the Windows Server execution cycle, the focus was on making the scenario work, rather than on making speciic features work. This kind of a scenario-focused requires an amazingly huge collaborative effort across technology teams.

Yigal Edery Principal Program Manager, Windows Server Hyper-V extensible switch The new Hyper-V extensible switch in Windows Server is key to enabling the creation of secure cloud environments that support the isolation of multiple tenants. The Hyper-V extensible switch in Windows Server introduces a number of new and enhanced capabilities for tenant isolation, trafic shaping, protection against malicious virtual machines, and hassle-free troubleshooting.

The extensible switch allows third parties to develop plug-in extensions to emulate the full capabilities of hardware-based switches and support more complex virtual environments and solutions. Previous versions of Hyper-V allowed you to implement complex virtual network environments by creating virtual network switches that worked like physical layer-2 Ethernet switches.

You could create external virtual networks to provide VMs with connectivity with externally located servers and clients, internal networks to allow VMs on the same host to communicate with each other as well as the host, or private virtual networks PVLANs that you can use to completely isolate all VMs on the same host from each other and allow them to communicate only via external networks. The Hyper-V extensible switch facilitates the creation of virtual networks that can be implemented in various ways to provide great lexibility in how you can design your virtualized infrastructure.

First, you can now install custom Network Driver Interface Speciication NDIS ilter drivers called extensions into the driver stack of the virtual switch. You might use this approach, for example, to perform packet inspection within your virtualized environment.

These different extensibility capabilities of the Hyper-V extensible switch are intended primarily for Microsoft partners and independent software vendors ISVs so they can update their existing network monitoring, management, and security software products so they can work not just with physical hosts, but also with VMs deployed within any kind of virtual networking environment that you might possibly create using Hyper-V in Windows Server In addition, being able to extend the functionality of the Hyper-V networking by adding extensions makes it easier to add new networking functionality to Hyper-V without needing to replace or upgrade the switch.

And because these extensions integrate into the existing framework of Hyper-V networking, they automatically work with other capabilities, like Live Migration. Note that once extensions are installed on the host, they can be enabled or disabled and also have their order rearranged by moving them up or down in the list of switch extensions.

You can also use Windows PowerShell to create, delete, and conigure extensible switches on Hyper-V hosts. For example, Figure shows how to use the Get-VMSwitchExtension cmdlet to display details concerning the extensions installed on a speciic switch. You also can display the full list of Windows PowerShell cmdlets for managing the extensible switch, as Figure illustrates. Troubleshooting virtual switches Microsoft also has extended Uniied Tracing through the Hyper-V extensible switch, which makes it easier for you to diagnose problems that may occur.

You also could review the System event log for any relevant events. With this exposure comes the vital need for the IT professional to know which datasets are relevant to their speciic monitoring situation. To how much of a degree is at question. One advantage to using ETW data providers rather than performance counter object items is that ETW providers come from the kernel itself typically, rather than coming from user mode measurements.

What this means is that the data from ETW data providers is more accurate and more reliable and also puts a lower load on the system.

ETW logging is unlikely to suffer from missing data sets due to high system load as well. Look for guidance on which items to collect though before diving in; ETL tracing can grow log iles quickly. Jeff Stokes Platforms PFE Additional capabilities A number of other advanced capabilities also have been integrated by Microsoft into the Hyper-V extensible switch to help enhance security, monitoring, and troubleshooting functionality.

For example, by selecting the network adapter under Hardware, you can specify bandwidth management settings for the VM. Figure shows these settings conigured in such a way that the VM always has at least 50 MBps of network bandwidth available, but never more than MBps.

If your hosts reside in a shared cloud being used to provision applications and services to business units or customers, these new bandwidth management capabilities can provide the beneit of helping you meet your SLAs with these business units or customers.

As the sidebar demonstrates, you also can use Windows PowerShell to conigure and manage the various advanced capabilities of the Hyper-V extensible switch. Scenario 1: Enabling advanced networking features In an upgrade scenario, you want to take advantage of advanced networking features of the extensible network switch. Suppose you want to limit the network segment associated with the virtual NIC connected to the management network.

For example, VLANs are typically used by cloud providers to isolate the servers belonging to one customer from those belonging to other customers and provisioned from the same cloud. VLANs accomplish this by adding tags to Ethernet frames. Then Ethernet switches can be conigured to enforce isolation by allowing nodes that have the same tag to communicate with each other, but not with nodes having a different tag.

Another problem that customers often experience when contemplating moving their computing resources to the cloud is IP addressing. How Network Virtualization works Network Virtualization is a new feature in Windows Server that lets you keep your own internal IP addresses when moving your servers into the cloud. These servers are currently in the This means that your existing clients, which are used to accessing servers located on the But what if another customer of Fabrikam uses the exact same subnetting scheme for its own virtualized workloads?

No problem! Network Virtualization in Windows Server provides complete isolation between VMs belonging to different customers even if those VMs use the exact same IP addresses! In the previous example, this might be the In the previous example, this could be Network Virtualization thus lets the cloud provider run multiple virtual networks on top of a single physical network in much the same way as server virtualization lets you run multiple virtual servers on a single physical server.

Network Virtualization also isolates each virtual network from every other virtual network, with the result that each virtual network has the illusion that it is a separate physical network. This means that two or more virtual networks can have the exact same addressing scheme, yet the networks will be fully isolated from one another and each will function as if it is the only network with that scheme.

IP rewrite requires a one-to-one mapping of customer addresses to provider addresses. Because Network Virtualization is intended for datacenters, implementing it requires that you have a VM management framework in place. Network Virtualization lets you create multi-tenant networks where each network is fully isolated from all other networks, and it does this without any of the limitations of or overhead associated with the job of creating and managing VLANs. This means that cloud providers can use Network Virtualization to create as many networks as you want—thousands and thousands of them for example if you are a large hosting provider—and then move workloads anywhere you want without having to perform the arduous and error-prone task of reconiguring VLANs.

Network Virtualization also provides greater lexibility for VM placement, which helps reduce overprovisioning and fragmentation of resources for the cloud provider. By enabling dynamic VM placement, the cloud provider can make best use of the compute, network, and storage resources within their datacenter and can monitor and control the provisioning of these resources more easily. Table summarizes the beneits of Network Virtualization to these different parties.

Operators, or service providers, are no longer interested in solutions.