Inquiry About Hyper-V Hypervisor Type in Windows Server

Ashraf Saeed 0 Reputation points
2024-11-12T09:31:08.0633333+00:00

Is there an official article or document from Microsoft that specifies whether the embedded Hyper-V hypervisor in the Windows Server Kit is Type 1 or Type 2? Any insights from Microsoft technical support or community members would be appreciated.

Thank you.

Windows Server
Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
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Hyper-V
Hyper-V
A Windows technology providing a hypervisor-based virtualization solution enabling customers to consolidate workloads onto a single server.
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  1. Zunhui Han 2,550 Reputation points Microsoft Vendor
    2024-11-12T16:14:27.13+00:00

    Hello,

    Thank you for posting in Q&A forum.

    You can determine the type of hypervisor scheduler that Hyper-V is currently using by examining the Event Viewer system logs. You can refer to the following links:

    User's image

    https://learn.microsoft.com/en-us/windows-server/virtualization/hyper-v/manage/manage-hyper-v-scheduler-types

    I hope the information above is helpful.

    Best regards

    Zunhui

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    If the Answer is helpful, please click "Accept Answer" and upvote it.

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  2. essjae 256 Reputation points
    2024-11-18T11:36:52.6733333+00:00

    Hyper-V is a type 1 hypervisor, regardless if it is Hyper-V Server, Windows Server with the Hyper-V role, or Windows 1x with the hyper-v role.

    https://learn.microsoft.com/en-us/windows-server/administration/performance-tuning/role/hyper-v-server/architecture

    "Hyper-V features a Type 1 hypervisor-based architecture. The hypervisor virtualizes processors and memory. It provides mechanisms for the virtualization stack in the root partition to manage child partitions, virtual machines (VMs) and expose services such as I/O (input/output) devices to the VMs.

    The root partition owns and has direct access to the physical I/O devices. The virtualization stack in the root partition provides a memory manager for VMs, management APIs, and virtualized I/O devices. It also implements emulated devices, such as the integrated device electronics (IDE) disk controller and PS/2 input device port. And it supports Hyper-V-specific synthetic devices for increased performance and reduced overhead.

    Diagram showing the Hyper-V hypervisor-based architecture.

    The Hyper-V-specific I/O architecture consists of virtualization service providers (VSPs) in the root partition and virtualization service clients (VSCs) in the child partition. Each service is exposed as a device over VM Bus, which acts as an I/O bus and enables high-performance communication between VMs that use mechanisms such as shared memory. The guest operating system's Plug and Play manager enumerates these devices, including VM Bus, and loads the appropriate device drivers, virtual service clients. Services other than I/O are also exposed through this architecture."

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  3. Alex Bykovskyi 2,241 Reputation points
    2024-11-20T15:04:54.7166667+00:00

    Hey,

    As mentioned, Hyper-V is a type 1 hypervisor. When you install Hyper-V on a Windows Server it "converts" the OS to a root partition (kinda VM), while hypervisor itself sits on the hardware.
    https://learn.microsoft.com/en-us/answers/questions/431362/confusion-related-to-type-1-or-type-2-for-hyper-v

    Might be helpful: https://www.starwindsoftware.com/blog/type-1-vs-type-2-hypervisor-what-is-the-difference/

    Cheers,

    Alex Bykovskyi

    StarWind Software

    Note: Posts are provided “AS IS” without warranty of any kind, either expressed or implied, including but not limited to the implied warranties of merchantability and/or fitness for a particular purpose.

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