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.

1. Virtualization
-the cloud enabler
Pravin Hanchinal
Co-founder & CEO
INSPIRE- groups

2. presentations

3. A love story

4. How was cloud computing so far?

5. How ahead?

6. What is Virtualization?
Virtualization is the ability to run
"virtual machines" on top of a "hypervisor“

7. The Cloud Computing Adoption Model

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. 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. Benefits of Virtualization
•
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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: http://whitehatvirtual.com/blog/bid/334816/Top-5-Benefits-of-Desktop-Virtualization

11. What can be Virtualized?
CPU
RAM
NIC
HDD
http://dribbble.com/shots/626853-Cloud-Hosting-Adjustment/attachments/52364

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. 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. Virtual Machines Classification
Process virtual machine
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designed to run a single program, which means
that it supports a single process
E.g. Parrot, CLR, LLVM, JVM, Dalvik,..
System virtual machine
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provides a complete system platform which
supports the execution of a complete operating
system (OS)
E.g. VirtualBox, Parallels Workstation, Xen,..

15. Process Virtual Machine
•

16. System Virtual Machine
•

17. Architecture viewpoint differences
1.
2.
3.
Traditional
Hosted virtualization
Bare-metal virtualization

18. Makes sense?

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. 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. 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. Type 1 (or native, bare metal)
hypervisor

23. Type 2 (or hosted) hypervisor

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. Now ?

26. VMotion: Live Migration

27. VMWare Workstation in action

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. Virtualization Enterprise
Perspective
Reduced cost
–Improve server utilization
–Reduce hardware costs
–Reduce power consumption
Agility
–Operational scalability
–Rapid provisioning
Security
–Isolated Systems

30. Source: http://www.crackerjackann.net/blog/is-a-lack-of-leads-frustrating-you
Enough! Lets see in Action

31. Thank you
more presentation at
inspiregroups.co.in/presentations/

32. Got questions?
mail to askinspire@live.com

33. Stay connected
pravinhanchinal.com

34. What Next?
Go through this presentation again
Explore more
Read Documentations
Experiment

35. Useful Resources
http://inspiregroups.co.in/our-blogs/cloud-computing/