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R5.4 The components and benefits of virtual computing systems. - Coggle…
R5.4 The components and benefits of virtual computing systems.
Virtualization
Data Virtualization- Provides processing functions that can bring data together from multiple sources, transforms data.
Desktop Virtualization- Allows multiple Operating Systems to be installed onto a single machine.
Server Virtualization- Provides the server with the ability to perform even more functions. Designed and configured to process high volumes of specific tasks.
Operating System Virtualization- Allows an organization to run multiple operating systems side by side, for example Windows.
Network Function Virtualization- Separates the network's key functions, for example file sharing and IP configuration, so they can be distributed among different environments.
Client VCC
Virtual Client Computing provides desktop virtualization solutions that overcome the limitations of the conventional desktop environment.
VCC eliminates difficulties and increases flexibility, as well as reducing costs.
Virtual Switch- A software program that allows one VM to connect with another.
The virtual switch directs the communication on the network by reviewing the packets before passing them on.
Establishes a connection between the virtual and physical network. The switch detects which of the virtual machines are connected to each of it's virtual ports.
It uses this info to forward traffic to the correct virtual machines. They are connected to physical hardware switches using Ethernet adapters to join virtual networks with physical networks.
Virtual Routers- They are supported by 2 physical routers. One router will carry out the normal routing function, while the other will facilitate redundancy in case of a failure of the system.
Any virtual router that is created is identified by a unique virtual router identified. The last byte of the address is the virtual router identified.
Servers- A virtual server is a server that is in an off-site data center. One server is converted into several virtual machines each of which run their own OS.
Full Virtualization- Uses software known as a hypervisor and they are based on the host-guest setup/standard. Each hypervisor can run thousands of virtual servers simultaneously.
Paravirtual Machine PVM- Based on the host guest standard. It can run multiple operating systems.
Operating system level- The guests must use the same OS as the administrator/host.
Advantages of server virtualization include:
Reduction in Costs- When a physical server is partitioned into the VM's they can deploy, operate and manage OS's at any given time. This means money doesn't have to be spent on buying several physical servers.
Virtualization is technology that enables a single, physical hardware system to be separated into multiple simulated environments.
Software known as a hypervisor connects to the hardware and facilitates the splitting of one system into separate and distinct environments referred to a VM.