Difference between standlone hyper-v vs role based


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standalone hyper-v vs role based hyper-v

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Difference between standlone hyper-v vs role based

  1. 1. Microsoft HYPER-V solution Microsoft virtualization [HYPER-V] is available as standalone product and also as „role‟ based on a Server Class Windows Operating system. What is Hyper-V? Hyper-V is a Windows technology that enables you to create multiple virtual machines on a single physical x64 computer running Microsoft Windows Server 2008, Windows Server 2008 R2, or Windows Server 2012/R2. So, what is the difference?  The standalone Microsoft Hyper-V Server 2008 & R2, 2012 & R2: [Free] This is a Stand-alone Microsoft Virtualization product [comparable to a Server Core installation in terms of foot print] with the hypervisor installed. But, it does not contain the robust set of features and roles as the Windows Server operating system, along with limited scaling than full version of Windows Server 2008 with Hyper-V role enabled. But it‟s a great solution for smaller businesses. But, you need to think about all the Guest OS licenses, so not all is FREE! Two fantastic articles can give you more insight & get you started:  Introducing Microsoft Hyper-V Server 2008 - Part 1 : http://www.elmajdal.net/win2k8/installing_microsoft_hyper_v_server_2008.aspx  Introducing Microsoft Hyper-V Server 2008 - Part 2 : Configuration http://www.elmajdal.net/win2k8/Configuring_Microsoft_Hyper_V_Server_2008.aspx  HYPER-V as a role [On Windows 2008 & R2, 2012 & R2] [Licensed] Hyper-V is also available as a “role” in Microsoft Windows Server 2008, Windows Server 2008 R2, and Windows Server 2012/R2 versions. When the Hyper-V role is installed, the host OS becomes [or turned into] the "Parent Partition" (a quasi-virtual machine), and the “Hypervisor” partition is placed between the parent partition and the hardware. As a result, it is not recommended to install additional (non-Hyper-V and/or VDI related) roles. It‟s more important to know how Microsoft HYPER-V Licensing works before deciding which OS version to choose from. Go to last page for more info.
  2. 2. What the hell are 'TYPE1' & 'TYPE2' Hypervisors? Hypervisor – „A layer of software‟ also called VMM (Virtual Machine Monitor) that sits between the hardware and one or more operating systems. Its primary job is to provide isolated execution environments called partitions. The hypervisor controls and arbitrates access to the underlying hardware. Type 1 and Type 2 are called so, depending upon whether an underlying operating system is present or not.  Type 1 hypervisor run directly on the hardware with VM resources provided by the hypervisor, as shown in the figure below. Example: VMware ESXi and Citrix XenServer, Microsoft HYPER-V etc. Courtesy: Wikipedia In Simpler words: This type of hypervisors runs directly on the host's hardware to control the hardware and to manage guest operating systems. A guest operating-system thus runs on another level [level 2] above the hypervisor.
  3. 3.  Type 2 hypervisor runs on a host operating system to provide virtualization services. Example: Sun VirtualBox, VMware workstation and Microsoft Virtual PC etc. Courtesy: Wikipedia In Simpler words: This type of hypervisors runs within a conventional operating-system environment. With the hypervisor layer as a distinct second software level, guest operating- systems run at the third level. You might ask, – Is HYPER-V really TYPE1? Ans: HYPER-V is indeed TYPE1 hypervisor. This is b'cos "Hypervisor partition is placed between the parent partition and the hardware" and therefore it runs directly on top on bare-metal hardware. Reason - Microsoft Hyper-V hypervisor loads prior to the management operating-system, and any virtual environments created run directly on the hypervisor, not via the management [Windows 2008/2012] operating-system. Management Operating system [Windows Server 2008] also called parent partition is „actually virtualized‟ to manage the Type 1 Hyper-V hypervisor that is running beneath it directly on top of hardware. Hyper-V Architecture http://msdn.microsoft.com/en-us/library/cc768520(v=bts.10).aspx
  4. 4. USEFUL LINKS This Microsoft discussion forum covers most of the queries around this topic: http://social.technet.microsoft.com/Forums/windowsserver/en-US/84d19d90-4afe-43a3- 8271-df30503004a0/whats-the-difference-between-hyperv-versions?forum=winserverhyperv Identifying Hyper-V Version http://www.elmajdal.net/Win2k8/Identifying_Hyper-V_Version.aspx Installing Hyper-V and Deploying Windows Server 2008 as Your First Virtual Machine - Part I http://www.elmajdal.net/win2k8/Installing_HyperV_and_Deploying_Windows_Server_2008_a s_Your_First_Virtual_Machine_Part_I.aspx Installing Hyper-V and Deploying Windows Server 2008 as Your First Virtual Machine - Part II http://www.elmajdal.net/win2k8/Installing_HyperV_and_Deploying_Windows_Server_2008_a s_Your_First_Virtual_Machine_Part_II.aspx An Introduction to Hyper-V in Windows Server 2008 http://technet.microsoft.com/en-us/magazine/2008.10.hyperv.aspx Download & Evaluate Windows Server 2012 R2 here: [Give it a try] http://technet.microsoft.com/en-US/evalcenter/dn205286.aspx Hyper-V‟s Actual Hardware Requirements http://www.altaro.com/hyper-v/hyper-vs-actual-hardware-requirements/
  5. 5. HYPER-V 2012 LICENSING MODEL Guest operating systems that are supported on a Hyper-V virtual http://technet.microsoft.com/en-us/library/cc794868(WS.10).aspx Linux Virtual Machines on Hyper-V http://technet.microsoft.com/library/dn531030.aspx http://blogs.technet.com/b/schadinio/archive/2012/06/26/windows-server-2012-hyper-v- list-of-supported-client-os.aspx For latest Pricing & details on Windows 2012R2: Windows_Server_2012_R2_Licensing_Datasheet Courtesy: Microsoft Courtesy: http://en.wikipedia.org/ Courtesy: http://www.elmajdal.net/ ashwinwriter@gmail.com April, 2014