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lect 1TO 5.pptx

  1. LECT -1 Distributed computing Overview of distributed computing and parallel computing Architecture .
  2. What is Distributed Computing ?  Distributed computing is a type of method of making multiple computers work together to solve a common problem .  It helps a computer network appear as a powerful single computer that provides large-scale resources to deal with complex challenges.
  3. Example of Distributed computing ?  Telephone and cellular networks are the classic examples of distributed networks .  Telephone networks have been around for over a century and it started as an early example of a peer to peer network.  Cellular networks are the type of distributed networks with base stations physically distributed in areas called cells.
  4. What Is Parallel Computing?  Parallel computing is the process of performing computational tasks across multiple processors to improve computing speed and efficiency. .  It divides tasks into sub-tasks and executes them simultaneously through different processors.
  5. Diagram of Distributed Computing and Parallel Computing.
  6. Parallel Computer Architecture  It is a type of method of organizing all the resources to maximize the performance and the programmability within the limits given by technology and the cost at any instance of time.  It adds a new dimension in the development of computer system by using more and more number of processors.
  7. Diagram of Parallel computing
  8. L-2 Overview of Distributed computing (Differences and Similarities among Different Types of Computing) .
  9. Differences and Similarities among Different Types of Computing . Parallel Computing 1. Many operations are performed simultaneously . 2. Single computer is required . 3. Multiple processors perform multiple operations Distributed Computing 1. System components are located at different locations . Uses multiple computers. Multiple computers perform multiple operations
  10. Similarities among distributed computing and Parallel Computing .  The main Similarities between parallel and distributed computing is that parallel computing allows multiple processors to execute tasks simultaneously .  While distributed computing divides a single task between multiple computers to achieve a common goal .
  11. Other types of Computing . Cluster Computing-  Distributed computing when done on a local area network is called cluster computing. Personal Computing Environment  In the personal computing environment, there is a single computer system. All the system processes are available on the computer and executed there. The different devices that constitute a personal computing environment are laptops, mobiles, printers, computer systems, scanners etc.
  12. Different types of computing Time Sharing Computing  The time sharing computing environment allows multiple users to share the system simultaneously. Each user is provided a time slice and the processor switches rapidly among the users according to it. Because of this, each user believes that they are the only ones using the system.
  13. Similarities among Different Types of Computing .  In the Cluster Computing- Distributed computing is done on a local area network is called cluster computing.  Personal Computing Environment In the personal computing environment, there is a single computer system is used.
  14. L-3 - Introduction to Virtualization and Techniques.  Virtualization is a technique that allows to run multiple operating system and applications on a same server at a same time Or  Virtualization is a type of process which creates logical virtual version of a server operating system which includes storage device or network services .
  15. Virtualization Techniques Types of Virtualization Techniques : 1. Hardware Virtualization. 2.Operating system Virtualization. 3. Server Virtualization. 4.Storage Virtualization.
  16. 1) Hardware Virtualization:  When the virtual machine software or virtual machine manager (VMM) is directly installed on the hardware system is known as hardware virtualization.  The main job of hypervisor is to control and monitoring the processor, memory and other hardware resources.
  17. 2) Operating System Virtualization: -  When the virtual machine software or virtual machine manager (VMM) is installed on the Host operating system instead of directly on the hardware system is known as operating system virtualization. Merit of operating system Virtualization –  Operating System Virtualization is mainly used for testing the applications on different platforms of OS.
  18. 3) Server Virtualization:  When the virtual machine software or virtual machine manager (VMM) is directly installed on the Server system is known as server virtualization. 4) Storage Virtualization:  Storage virtualization is the process of grouping the physical storage from multiple network storage devices so that it looks like a single storage device.  Storage virtualization is also implemented by using software applications.
  19. Usage:  Storage virtualization is mainly done for back-up and recovery purposes.
  20. What are types of virtualization ? Types of Virtualization:  1.Application Virtualization.  2.Network Virtualization.  3.Desktop Virtualization.  4.Storage Virtualization.  5.Server Virtualization.  6.Data virtualization.
  21. Explanation of different types of Virtualization . 1.ApplicationVirtualization:  It helps a user to have remote access of an application from a server and server can store all personal information and other characteristics of the application but can run only on a local workstation through the internet.
  22. 2. Network Virtualization: -  In the network virtualization separate control and data plan provides ability to run multiple virtual networks . 3.DesktopVirtualization:  It provides ability to user access their Desktop on any location by using different machine virtually and also provides facility to user to remotely stored on a server in the data centre.
  23. 4. Server Virtualization: In the server virtualization a central-server (physical server) is divided into multiple different virtual servers by changing the identity number, processors and in it each system can operate its own operating systems in isolate manner.
  24. 5. Storage Virtualization:-  Storage virtualization is an array of servers that are managed by a virtual storage system .  It is used to manage storage from multiple sources and manage and utilize as a single repository.
  25. LECT -4 Overview of x86 virtualization.  X86 is the term used to denote the microprocessor family based on the Intel 8086 and 8088 microprocessors.  X86 virtualization is use to hardware-assisted virtualization capabilities on an x86/x86-64 CPU.  In the late 1990s x86 virtualization was achieved by complex software techniques which is necessary to compensate for the processor's lack of hardware-assisted virtualization capabilities while attaining reasonable performance.
  26. Virtualization technology  It is a type of technology in which allows the user to create virtual representations of servers, storage, networks, and other physical machines. OR  Virtualization technology defines about the virtual representation of servers , storage , networks and other physical machines .
  27. Lect -5 Virtualization techniques (concept of VLAN , SLAN and VSAN and benefits)
  28. Lect -5 What is VSAN ?  Virtual storage area network (VSAN is a software- defined storage (SDS) management architecture—has enormous benefits which includes enhanced flexibility and scalability.  A virtual storage area network (VSAN) is a software- based component that provides a virtualized ‘pool’ of storage to multiple virtual machines (VMs) and applications.
  29. Advantages of VSAN  Better information lifecycle management - Virtualization administrators can relocate frequently accessed data to high-performance storage, pushing rarely accessed data regions onto less expensive storage resources.  Improved manageability – Although it's relatively easy to manage identical drives, the task can become much more difficult if storage resources involve several vendors or even several models from the same vendor. A VSAN isn't only easy to set up, but straightforward to manage and provision.
  30. Advantages of VSAN  Reduced total cost of ownership. A VSAN can be deployed on inexpensive x86 servers, eliminating the need for large upfront investments.
  31. What is VLAN ?  A virtual local area network (VLAN) is a virtualized connection that connects multiple devices and network nodes from different LANs into one logical network.  VLANs enable logical grouping of end-stations that are physically dispersed on a network.
  32. Benefits of VLAN.
  33. Thanks