Question

"MPILAHUI LÀMIST - Font Paragraph Styles 4. Do you believe that Enterprise IT infrastructure generally utilizes Type 1 or Type 2 hypervisors for server virtualization? Why? What is the other type used for? 247 words DE

Answer 1

Type 1 hypervisors offer much better performance than Type 2.

Type 1 :

VM1 VM2 HYPERVISOR HARDWARE TYPE1 HYPERVISOR

Type 2:

VM HYPERVISOR HOST OS HARDWARE TYPE 2 HYPERVISOR

Type 1 offer much better performance than Type 2, because there is no middle layer between Hypervision and Hardware, making them the logical choice for mission-critical applications and workloads.One of the best ways to determine which hypervisor meets your needs is to compare their performance metrics.

The following factors should be examined before choosing a suitable hypervisor.

1.Understand your needs: Flexibility,Scalability,Usability,..etc

2.The cost of a hypervisor

3.Virtual machine performance

4.Ecosystem

5.Test for yourself

Other Types:

1.Hypervisor: A Hypervisor is a layer that exits between the operating system and hardware. It provides the necessary services and features for the smooth running of multiple operating systems.

2.Para Virtualization: It is based on Hypervisor. Much of the emulation and trapping overhead in software implemented virtualisation is handled in this model. The guest operating system is modified and recompiled before installation into the virtual machine.

3.Full Virtualization: It is very much similar to Para virtualisation. It can emulate the underlying hardware when necessary. The hypervisor traps the machine operations used by the operating system to perform I/O or modify the system status.After trapping, these operations are emulated in software and the status codes are returned very much consistent with what the real hardware would deliver.

4.Hardware Assisted Virtualization: It is similar to Full Virtualisation and Para virtualisation in terms of operation except that it requires hardware support. Much of the hypervisor overhead due to trapping and emulating I/O operations and status instructions executed within a guest OS is dealt by relying on the hardware extensions of the x86 architecture.

5.Kernel level Virtualization: Instead of using a hypervisor, it runs a separate version of the Linux kernel and sees the associated virtual machine as a user – space process on the physical host. This makes it easy to run multiple virtual machines on a single host.

6.System Level or OS Virtualization: Runs multiple but logically distinct environments on a single instance of operating system kernel. Also called shared kernel approach as all virtual machines share a common kernel of host operating system

Answer 2

A Type 2 hypervisor is typically installed on top of an existing OS, and it's called a hosted hypervisor as the Type 2 hypervisor are bascially been used as boosting up the acceleration of the system as they first connect to the host system and then to the servers and then they are been transfered to the guest users

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