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Virtualization

Virtualization. What the Dramatic Changes in Server Management Mean to Us. This is a Traditional Server Room. This is a Virtualized Server Room. On average, 10% of server processor is utilized per server*. *per IDC.

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Virtualization

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  1. Virtualization What the Dramatic Changes in Server Management Mean to Us

  2. This is a Traditional Server Room

  3. This is a Virtualized Server Room

  4. On average, 10% of server processor is utilized per server*. *per IDC

  5. Virtualization allows for maximized use and dynamic allocation of processing power

  6. Energy Use and Server Budget are Reduced

  7. Server Recovery and Backupis as Easy as…

  8. Drag n’ Drop Backup

  9. Server Templates

  10. Mixture of Operating Systems on One Server

  11. 24/7 Availability

  12. Instant Testing Environments

  13. How It Works (1) • Server virtualization uses a Hypervisor - a streamlined Operating System with connectivity, virtualization and management features. • Intel and AMD include virtualization support on specific chipsets; this is required for some server virtualization products. Peter Campbell, Techcafeteria August, 2008

  14. How It Works (2) • Virtual machines (VMs) are loaded into memory by the Hypervisor. They emulate standalone servers. • Users connect to VMs, but VMs can be copied and moved without interruption. • Load Balancing and Fault Tolerance can be used to mirror VMs and insure business continuity.

  15. Hypervisor Dynamically Adjusts VM Hosts to Best Use Resources

  16. Load Balancing and Automatic Failover Insures Stability

  17. Reduced Costs, Energy Efficiency, Manageability

  18. Potential Issues • This is all still pretty new - assumptions about proper configuration and server requirements still vary. • Virtualized databases can be impacted by conflicts between virtualization and caching. • There is some debate about whether domain controllers should be virtualized. • Smaller vendors might resist supporting virtualized applications; large vendors won’t. Peter Campbell, Techcafeteria August, 2008

  19. Products • Commercial • VMWare (Server, Desktop, Fusion) • Citrix Xen Server and Desktop • Microsoft Virtual Server, WinServer 2008 • Virtual Iron • Open Source • Xen (FOSS version of Citrix product) • KVM • VirtualBox Peter Campbell, Techcafeteria August, 2008

  20. Questions Peter Campbell, Techcafeteria August, 2008

  21. Virtualization Scenarios Matthew Eshleman Director of Professional Network Services Community IT Innovators meshleman@citidc.com www.citidc.com

  22. Tools & Terminology Virtualization Hypervisor Physical to Virtual Conversion Software Storage Area Network (SAN) iSCSI or Fiber Channel SAN Connection Storage Management (LUN) Backup & Disaster Recovery RPO & RTO

  23. Backup & Disaster Recovery • Backup • What are the RPO and RTO requirements? • Use existing backup to tape or disk • Online backup services • Backup appliances • Disaster Recovery • Part of business continuity • Manual or Automated systems

  24. Small Office Virtualization Single SBS Server Server out of warranty & out of space Additional services required Accounting server Terminal server Intranet etc

  25. Small Office Virtualization Benefits Preserve existing server Expand HW capacity Minimal user disruption Lower HW Costs Adds flexibility Risks Adds complexity Need to adjust backup plan Single point of failure

  26. Mid Sized Consolidation 2-6 existing physical servers Increasing application requirements Increasing availability requirements Maxing out electrical system Maxing out cooling system

  27. Mid Sized Consolidation Benefits Lowered Hardware Costs Reduced Warranty Expense Reduced Energy Consumption Improved HW utilization Risks Solution needs to be appropriately designed Consider backup & disaster recovery requirements Adds complexity Server sprawl

  28. Enterprise Virtualization Appropriate starting at 4-8 physical servers High availability Highly flexible and expandable Dedicated IT staff Significant investment

  29. Enterprise Virtualization Benefits Lowered Hardware Costs Reduced Warranty Expense Reduced Energy Consumption Improved HW utilization High availability Flexibility Risks Software costs Complexity Management

  30. Virtualization Conclusions Virtualization can be used in most cases Requires appropriate planning Provides additional flexibility and cost savings Relatively low barrier to entry

  31. QUESTIONS?

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