Week 2 Topic 1 Discussion
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DeVry University, Chicago *
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211
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Information Systems
Date
Feb 20, 2024
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docx
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Uploaded by LieutenantCrownBeaver9
Topic 1
What are the differences between a Type 1 hypervisor and a Type 2 hypervisor? Name one example and describe it’s use cases.
A Type 1 hypervisor, also known as a "bare-metal" hypervisor, operates directly on the physical hardware
of a host system. It does not require a separate underlying operating system and instead interfaces directly with the hardware components. This allows it to have direct control over the system's resources, enabling efficient virtualization. Examples of Type 1 hypervisors include VMware vSphere/ESXi, Microsoft
Hyper-V, and Xen. These hypervisors are commonly used in enterprise environments where performance
and resource efficiency are crucial. They are ideal for server consolidation, data centers, and cloud infrastructures where multiple virtual machines (VMs) need to run efficiently on a single physical host.
A Type 2 hypervisor, also known as a "hosted" hypervisor, is installed on top of a host operating system. It relies on the host OS for tasks like device management and resource allocation. This extra layer introduces some performance overhead as it competes with the host OS for resources. Examples of Type
2 hypervisors include VMware Workstation, Oracle VirtualBox, and Parallels Desktop. They are popular in
development, testing, and educational environments, where flexibility and ease of use are more important than maximizing raw performance.
For instance, VMware vSphere/ESXi is a prominent Type 1 hypervisor used in enterprise environments. It
is known for its robust virtualization capabilities, high performance, and scalability. VMware vSphere is extensively used by businesses for server consolidation, creating virtual data centers, and deploying cloud infrastructures. The direct interaction with hardware allows for efficient resource allocation and management, making it suitable for large-scale virtualization environments.
Personally, I have used both types of hypervisors and I prefer the Type 1 hypervisor. When using a Type 2 hypervisor, there is a certain amount of lag because it is basically running an operating system on an operating system; this results in a larger amount of resources used and greater demand on the hardware.
REF:
https://www.vmware.com/products/vsphere-hypervisor.html
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