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Virtualization-the Cloud Enabler by INSPIRE-groups

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Virtualization is the ability to run virtual machines on top of a hypervisor.
Virtualization is an emerging IT paradigm that separates computing functions and technology implementations from physical hardware.

Cloud computing, for example, is the virtualization of computer programs through an internet connection rather than installing applications on every office computer.

Publicado en: Tecnología
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Virtualization-the Cloud Enabler by INSPIRE-groups

  1. 1. Virtualization -the cloud enabler Pravin Hanchinal Co-founder & CEO INSPIRE- groups
  2. 2. presentations
  3. 3. A love story
  4. 4. How was cloud computing so far?
  5. 5. How ahead?
  6. 6. What is Virtualization? Virtualization is the ability to run "virtual machines" on top of a "hypervisor“
  7. 7. The Cloud Computing Adoption Model
  8. 8. Virtualization and Cloud Computing • Virtualization is the ability to run "virtual machines" on top of a "hypervisor“ • A hypervisor provides a uniform abstraction of the underlying physical machine. • Abstraction in the key idea in Service Models of Cloud!
  9. 9. Timeline of Virtualization • 1970s: virtual machines first used • 1990s: x86 becomes prominent server platform • 1999: VMWare first product to virtualize x86 • 2006: AMD and Intel offer hardware support
  10. 10. Benefits of Virtualization • • • • • • • • • Greatest Cost Savings Highest Server Utilization Built-In High Availability Zero Downtime Failover Best Performance Unmatched Reliability Superior Security Lowest TCO Fastest, Easiest Management * Image soruce:
  11. 11. What can be Virtualized? CPU RAM NIC HDD
  12. 12. What is a Virtual Machine (VM)? • A virtual machine (VM) is a software implementation of a machine that executes programs like a physical machine. • Each VM includes its own kernel, operating system, supporting libraries and applications.
  13. 13. What Virtual Machines provide? – Hardware independence VM sees the same hardware regardless of the host hardware – Isolation VM’s operating system is isolated from the host operating system – Encapsulation Entire VM encapsulated into a single file
  14. 14. Virtual Machines Classification Process virtual machine ● ● designed to run a single program, which means that it supports a single process E.g. Parrot, CLR, LLVM, JVM, Dalvik,.. System virtual machine ● ● provides a complete system platform which supports the execution of a complete operating system (OS) E.g. VirtualBox, Parallels Workstation, Xen,..
  15. 15. Process Virtual Machine •
  16. 16. System Virtual Machine •
  17. 17. Architecture viewpoint differences 1. 2. 3. Traditional Hosted virtualization Bare-metal virtualization
  18. 18. Makes sense?
  19. 19. VM Implementation ▪ Hosted ▪ Runs as a process on an existing host OS ▪ Rely on host OS for H/W interaction ▪ VMWareGSX, user-mode Linux ▪ Stand-alone/bare metal /native ▪ VMM on top of bare hardware ▪ All H/W interactions on VMM itself ▪ Highly efficient ▪ VMWareESX, IBM z/VM, HyperV
  20. 20. VMM / Hypervisor ▪ VMM: Virtual Machine Monitor ▪ Small special purpose operating system ✓ Interface simulates a CPU ✓ Each process acts like a separate computer or VM ✓ Can run a full OS in each virtual machine
  21. 21. Types of hypervisors (VMM) • Type 1 (or native, bare metal) – run directly on the host's hardware to control the hardware and to manage guest OS. • Type 2 (or hosted) – run within a conventional operating system environment.
  22. 22. Type 1 (or native, bare metal) hypervisor
  23. 23. Type 2 (or hosted) hypervisor
  24. 24. How to execute guest instructions on a host? Interpretation(emulation) Slow execution speed, but easy implementation Translation Dynamic translation (JIT): recompile/translation while running Static translation (AOT): multiple binary problem Complicated but faster execution, especially with optimizations Run directly on the hardware When the host and guest ISA are binary compatible
  25. 25. Now ?
  26. 26. VMotion: Live Migration
  27. 27. VMWare Workstation in action
  28. 28. Pros and Cons Pros: Cons: Sandbox Hardware independent OS independent Fast Recovery Live Backup Migrate data Reduced Hardware Run Multiple OS Simultaneously Cost savings Use of Multicore processors System Security Test and Development Less Efficient Unstable Performance Tools lack ability Rapid Deployment Latency of Virtual Disk Backup and Data Sets Security Issues Hardware compatibility issues Managing and Securing is difficult
  29. 29. Virtualization Enterprise Perspective Reduced cost –Improve server utilization –Reduce hardware costs –Reduce power consumption Agility –Operational scalability –Rapid provisioning Security –Isolated Systems
  30. 30. Source: Enough! Lets see in Action
  31. 31. Thank you more presentation at
  32. 32. Got questions? mail to
  33. 33. Stay connected
  34. 34. What Next? Go through this presentation again Explore more Read Documentations Experiment
  35. 35. Useful Resources