Microsoft server 2008 r2
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Microsoft Server 2008 R2 - PowerPoint PPT Presentation

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Microsoft Server 2008 R2. Hyper-V. Server Virtualization. What is server vitualization ? The ability to run a full operating system on a software platform in such a way that the OS thinks it’s running on a real computer. This is known as hardware or server virtualization. VMWare ESXi

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Server virtualization
Server Virtualization

  • What is server vitualization?

    • The ability to run a full operating system on a software platform in such a way that the OS thinks it’s running on a real computer. This is known as hardware or server virtualization.

      • VMWareESXi

      • Microsoft Hyper-V

Server virtualization1
Server Virtualization

  • Why use virtualization?

    • Server power tends to grow faster then the resource need of applications

    • Servers may sit idle with little CPU usage and gigabytes of RAM available.

    • Consolidate servers on the same hardware

    • Reduce power needs

    • Reduce square-footage/rack space

Server virtualization2
Server Virtualization

  • How does this work?

    • Two OS’s cannot use the same software at the same time…technically.

    • One has to be in charge or resource allocations. This OS is called the “host” OS.

    • The “guest” OS will need access to the hardware through a form of emulation.

      • Some systems can emulate CPU’s other than their own.

Server virtualization3
Server Virtualization

  • How does this work?

    • Modern dedicated virtualization systems such as Hyper-V and VMWareESXi use system resources as efficiently as possible.

    • They use real memory and the CPU directly executes the code of the VM.

    • Emulation where existing hardware behavior needs to be simulated costs performance but sometimes cannot be avoided.

    • Hyper-V tries to avoid the simulation by using its own driver architecture for each type of device.

Server virtualization4
Server Virtualization

  • What use is Server Virtualization?

    • Testing—this is where it started. Admins and consultants could not afford to dedicate hardware for a test environment.

      • Quickly add/remove VM’s as needed

      • Network in a box

Server virtualization5
Server Virtualization

  • What use is Server Virtualization?

    • Consolidation—largest use of virtualization

      • Conserves resources and saves costs

      • Shares hardware

      • Increases flexibility

      • Joins legacy operating systems

    • Disaster recovery—VMs share the same type of virtual hardware therefore moving or recovering VM’s eliminate driver and HAL issus

Server virtualization6
Server Virtualization

  • Wow, this is awesome…is there a downside?

    • Increases complexity—is it VM or physical issue?

    • Strains infrastructure—must have dedicated storage(SAN) and high speed IP network.

    • Can cause large scale failure—a host can introduce a single point of failure. One host taking down 10 VM’s . 

Server virtualization7
Server Virtualization

  •  continued

    • Requires special maintenance—patch management etc for offline VMs

    • Security issues—more roosters in the hen house…

    • Learning curve—need to get trained if you are going to deploy new technologies

Hyper v

Hardware requirements

  • Hyper-V requires specific hardware. To install and use the Hyper-V role, you will need the following:

  • An x64-based processor. Hyper-V is available in 64-bit editions of Windows Server 2008—specifically, the 64-bit editions of Windows Server 2008 Standard, Windows Server 2008 Enterprise, and Windows Server 2008 Datacenter

Hyper v1

Hardware requirements

  • Hardware-assisted virtualization. This is available in processors that include a virtualization option—specifically processors with Intel Virtualization Technology (Intel VT) or AMD Virtualization (AMD-V) technology.

  • Hardware-enforced Data Execution Prevention (DEP) must be available and enabled.

Hyper v2

Software requirements

  • 64 bit OS

Hyper v3

  • Host System

Hyper v4

  • Key stroke functions

Hyper v5

  • Hyper-Visor

    • A core component of Hyper-V, Windows hypervisor is a thin layer of software between the hardware and the OS that allows multiple operating systems to run, unmodified, on a host computer at the same time.

    • It provides simple partitioning functionality and is responsible for maintaining strong isolation between partitions.

    • It has an inherently secure architecture with minimal attack surface, as it does not contain any third-party device drivers.

Virtual desktop infrastructure
Virtual Desktop Infrastructure

  • Virtual Desktop Infrastructure(VDI)-- is an emerging architectural model where a Windows client operating system runs in server-based virtual machines (VMs) in the data center and interacts with the user’s client device such as a PC or a thin client.

  • Similar to session virtualization, VDI provides IT with the ability to centralize a user’s desktop; instead of a server session, however, a full client environment is virtualized within a server-based hypervisor.

Virtual desktop infrastructure1
Virtual Desktop Infrastructure

  • Key benefits of VDI are:

    • Better enablement of flexible work scenarios, such as work from home and hot-desking

    • Increased data security and compliance

    • Easy and efficient management of the desktop OS and applications

  • Video on VDI here: