20th March Session Three by SR Balasubramanian


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Virtualization Journey Challenges And Opportunities By Sr Balasubramanian

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20th March Session Three by SR Balasubramanian

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