What is Virtualization
- 1. Server Virtualization overview Kotadiya Dhrupesh Nasit Durgesh Prepared by
- 2. Agenda Introduction to Virtualization and Server Virtualization Comparing with and without virtualization Virtual server concept Benefit of server virtualization Limitation of server virtualization
- 3. Who Uses VMware? 100% of the Fortune 100
- 4. What is Virtualization Server virtualization Creates multiple isolated environments Allows multiple OS’s and workloads to run on the same physical hardware Virtualization basically allows one computer to do the job of multiple computers, by sharing the resources of a single hardware across multiple environments.Version of virtualization such as hardware platform,operating system,storage device , network resources and server virtualization. Virtualization Layer Virtual Container App. A App. B Hardware Virtual Container App. C App. D
- 6. The Traditional Server Concept Old Model: Traditional x86 Architecture • Single OS image per machine • Software and hardware tightly coupled • Multiple applications often conflict Old model is challenging! ______________________________________________________________________________________________________
- 7. Comparison between with and without virtualization With VirtualizationWithout Virtualization VMware provides hardware virtualization that presents a complete x86 platform to the virtual machine Allows multiple applications to run in isolation within virtual machines on the same physical machine Virtualization provides direct access to the hardware resources to give you much greater performance
- 8. The Virtual Server Concept Hardware independence –Guest VM sees the same hardware regardless of the host hardware Isolation –VM’s operating system is isolated (different) from the host operating system Encapsulation –Entire VM encapsulated into a single file Virtual machines provide:
- 9. Benefits of Virtualization Increased hardware utilization Server consolidation Decreased provisioning times Load-Balancing Improved security Software Development Testing / Quality Assurance Training Disaster Recovery
- 10. Virtualization Increases Hardware Utilization Before VMware After VMware Virtualization enables consolidation of workloads from underutilized servers onto a single server to safely achieve higher utilization
- 11. Server Cosolidation Consolidation means collection of different things and make one. Increase Hardware configuration.
- 12. Decrease povisioning Time Consolidation means collaction of different things and make one
- 14. Training / Test Labs
- 15. The Disadvantages of Virtualization o Increase complexity of IT environment o Physical failures become “serious” o Performance Testing o Hardware compatibility Testing o Specific Hardware Requirements o -custom hardware devices o Resource-intensive application o -VMs may have RAM/CPU Limitations
- 16. Physical-to-Virtual (P2V) Conversion of an existing physical machine into a virtual machine -Operating system, settings, and all data
- 17. File Server Database Server Web Server Virtual Server Virtual Server Virtual Server Physical Server Proxy Server Syncroniz ation Physical failures become “serious”
- 18. Central virtual OS Architecture Phisical Hardware Operating System Virtual Layer Virtual OS Container ContainerContainer Central OS Architecture