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20th March Session Three by SR Balasubramanian
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20th March Session Three by SR Balasubramanian

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Virtualization Journey Challenges And Opportunities By Sr Balasubramanian

Virtualization Journey Challenges And Opportunities By Sr Balasubramanian


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Transcript

  • 1.
  • 2. What is Virtualization
    • Virtualization enables us combine servers from multiple generations into the same virtualized server pool.
    • 3. Virtualization allows a group of inefficient servers to be replaced with a fewer number of machines.
    • 4. Virtualization is a software that allows a piece of hardware to run multiple operating system images at the same time.
  • The need for Virtualization
    Earlier practices had the following drawbacks:-
    • Addition of too many servers (Tower and Rack Servers) to run additional applications
    • 5. Sub-optimal utilization of servers
    • 6. Problems of managing an army of servers
    • 7. Space consolidation in Data Center
  • Types of Virtualization
    Server Virtualization
    • Converting several physical servers into a pool of Virtual servers
    Storage Virtualization
    • The process of completely abstracting logical storage from physical storage
    Application Virtualization
    • The hosting of individual application
    Desktop Virtualization
    • User interface is as per profile setup centrally- can access from any desktop. Means Data, Application, OS - all reside in a virtual environment
  • Benefits of Virtualization
    • Lower investment (CAPEX) on hardware
    • 8. Minimum physical space requirement
    • 9. Better utilization of hardware resources
    • 10. Less power consumption
    • 11. Less maintenance overhead of IT
    • 12. Provision for resources on demand
    • 13. Patch management and upgrade become easier
    • 14. Disaster recover planning (DRP) become easier
    • 15. In case of interruption of services, one can backup and even migrate entire virtual environment
  • IMPLEMENTATION ISSUES
    • To plan and procure licenses
    • 16. Arrange for adequate and appropriate hardware, capacity planning
    • 17. To evaluate and select partner to implement, configure and activate
    • 18. Take care of interface with storage, backup devices etc
    • 19. Install tools for management
  • MANAGEMENT
    • Use tools for health check
    • 20. Performance management
    • 21. Allocation and reallocation of resources
    • 22. Retain a partner for help on an on-going basis
  • Resources for Virtualization
    Hardware
    Blade Servers
    High end servers-Logical partitioning
    Micro partitioning (Further sub-division of the processor)
    Software
    Virtualization Software. e.g. IBM, HP, VMware, Citrix, Red Hat (Xen, kvm), Microsoft (Hyper-V).
    Hypervisor layer (software emulating hardware)
    S.A.N.
    Network switches
  • 23. Sharing experience on Consolidation
    Tower Model
    One Physical server
    Blade Servers
    Multiple thin servers in one Physical server
    Resulting reduction of Power and space in datacenter
  • 24. Sharing experience on Server Consolidation
    Servers Consolidation
    Servers are placed in data center in Head Office to centrally host applications
    Data center has close to 80 servers
    After using ‘Virtualization’, Number of servers reduced to 36 boxes (Blades)
  • 25. Sharing of Datacenter after Virtualization
  • 26. Thanks