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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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Virtualization l.jpg

Virtualization

What the Dramatic Changes in Server Management Mean to Us


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  • This is a Traditional Server Room


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  • This is a Virtualized Server Room


On average 10 of server processor is utilized per server l.jpg

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

*per IDC


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

Virtualization allows for maximized use and dynamic allocation of processing power


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Energy Use and Server Budget are Reduced


Server recovery and backup is as easy as l.jpg

Server Recovery and Backupis as Easy as…


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Drag n’ Drop Backup


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Server Templates


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Mixture of Operating Systems on One Server


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24/7 Availability


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Instant Testing Environments


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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


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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.


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Hypervisor Dynamically Adjusts VM Hosts to Best Use Resources


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Load Balancing and Automatic Failover Insures Stability


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Reduced Costs, Energy Efficiency, Manageability


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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


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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


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Questions

Peter Campbell, Techcafeteria August, 2008


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Virtualization Scenarios

Matthew Eshleman

Director of Professional Network Services

Community IT Innovators

meshleman@citidc.com

www.citidc.com


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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


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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


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Small Office Virtualization

Single SBS Server

Server out of warranty & out of space

Additional services required

Accounting server

Terminal server

Intranet

etc


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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


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Mid Sized Consolidation

2-6 existing physical servers

Increasing application requirements

Increasing availability requirements

Maxing out electrical system

Maxing out cooling system


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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


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Enterprise Virtualization

Appropriate starting at 4-8 physical servers

High availability

Highly flexible and expandable

Dedicated IT staff

Significant investment


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Enterprise Virtualization

Benefits

Lowered Hardware Costs

Reduced Warranty Expense

Reduced Energy Consumption

Improved HW utilization

High availability

Flexibility

Risks

Software costs

Complexity

Management


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Virtualization Conclusions

Virtualization can be used in most cases

Requires appropriate planning

Provides additional flexibility and cost savings

Relatively low barrier to entry


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QUESTIONS?


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TXT Your Session Evaluation!

TXT NTC178 to 69866

Or complete online at http://nten.org/ntc-eval or on a paper evaluation available in the session room.

Each completed session evaluation enters you to win a FREE 2010 NTC Registration!


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