cloud computing:Types of virtualization
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The document discusses different types of virtualization including hardware, network, storage, memory, software, data, and desktop virtualization. Hardware virtualization includes full, para, and partial virtualization. Network virtualization includes internal and external virtualization. Storage virtualization includes block and file virtualization. Memory virtualization enhances performance through shared, distributed, or networked memory that acts as an extension of main memory. Software virtualization allows guest operating systems to run virtually. Data virtualization manipulates data without technical details. Desktop virtualization provides remote access to work from any location for flexibility and data security.
cloud computing:Types of virtualization
- 1. Types of Virtualization Dr. Neeraj Kumar Pandey1
- 2. Major Types of Dr. Neeraj Kumar Pandey2
- 3. Types of Hardware virtualization Dr. Neeraj Kumar Pandey3 Hardware virtualization is further subdivided into the following types: Full Virtualization – In it, the complete simulation of the actual hardware takes place to allow software to run an unmodified guest OS. Para Virtualization – In this type of virtualization, software unmodified runs in modified OS as a separate system. Partial Virtualization – In this type of hardware virtualization, the software may need modification to run.
- 4. Network Virtualization Dr. Neeraj Kumar Pandey4 Internal Network Virtualization: It refers to the management and monitoring of a computer network as a single managerial entity from a single softwarebased administrator’s console. It is intended to allow network optimization of data transfer rates, scalability,reliability, flexibility, and security. It also automates many network administrative tasks. Network virtualization is specifically useful for networks experiencing a huge, rapid, and unpredictable increase of usage. External Network Virtualization: Combine many networks, or parts of networks into a virtual unit. External Network Virtualization involves and actual physical device that caters to your network. This type of virtualization has been around for some time now, a typical example of this would be a CISCO networking switch that provides VLAN (virtual LAN) capabilities through its internal CISCO iOS software.
- 5. Storage Virtualization Dr. Neeraj Kumar Pandey5 In this type of virtualization, multiple network storage resources are present as a single storage device for easier and more efficient management of these resources. It provides various advantages as follows: Improved storage management in a heterogeneous IT environment Easy updates, better availability Reduced downtime Better storage utilization Automated management In general, there are two types of storage virtualization: Block virtualization It works before the file system exists. It replaces controllers and takes over at the disk level. File virtualization The server that uses the storage must have software installed on it in order to enable filelevel usage.
- 6. Memory Virtualization Dr. Neeraj Kumar Pandey6 It introduces a way to decouple memory from the server to provide a shared, distributed or networked function. It enhances performance by providing greater memory capacity without any addition to the main memory. That’s why a portion of the disk drive serves as an extension of the main memory. Application level integration – Applications running on connected computers directly connect to the memory pool through an API or the file system.
- 7. Memory Virtualization… Dr. Neeraj Kumar Pandey7 Operating System Level Integration – The operating system first connects to the memory pool, and makes that pooled memory available to applications.
- 8. Software Virtualization Dr. Neeraj Kumar Pandey8 It provides the ability to the main computer to run and create one or more virtual environments. It is used to enable a complete computer system in order to allow a guest OS to run. For instance letting Linux to run as a guest that is natively running a Microsoft Windows OS (or vice versa, running Windows as a guest on Linux) Types: Operating system Application virtualization Service virtualization
- 9. Data Virtualization Dr. Neeraj Kumar Pandey9 Without any technical details, you can easily manipulate data and know how it is formatted or where it is physically located. It decreases the data errors and workload.
- 10. Desktop virtualization Dr. Neeraj Kumar Pandey10 It provides the work convenience and security. As one can access remotely, you are able to work from any location and on any PC. It provides a lot of flexibility for employees to work from home or on the go. It also protects confidential data from being lost or stolen by keeping it safe on central servers.