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This posting is provided "AS IS" with no warranties, and confers no rights. The opinions expressed within are my own and should not be attributed to any other Individual, Company or the one I work for. I just happen to be a classic techie who is passionate about getting things to work as they should do (and are sometimes advertised and marketed as being able to?) and when I can I drop notes here to help others falling in to the same traps that I have fallen in to. If this has helped then please pass it on - if you feel that I have commented in error or disagree then please feel free to discuss with me either publically or privately? Cheers, Dave
Thin Clients, VDI and Linux integration from the front lines.... Raw and sometimes unedited notes based on my experiences with VMware, Thin Clients, Linux etc.

So why is Server Virtualization sweeping IT as the next best thing? Here are some real world examples of what I would term a medium sized deployment showing what sort of cost savings are available (Capital and Monthly) just based on Real Estate/Data Centre and Power costs.

The other crucial point to this is that so many business's are now asking IT to be able to provide services and applications *quickly* - in line with business requirements - and by providing the ability to deploy or provision Servers and Desktops in minutes as opposed to days or weeks has a very real chance of elevating IT to the board if you haven't already done so.

End score (consolidation, power etc.)

Our virtualization project has come to an end a while ago but I would like to share the end score and some of the savings achieved with this project:

Our current VI consists of:

  • Six cluster hosts (DL585 G2, 48GB memory per host)
    • 120 Virtual Servers (consolidation 20:1)
  • Two VDI hosts (DL585 G1, 32GB memory per host)
    • 50 desktops (currently, there’s room for more)
  • One dedicated ESX3 host for SAP testing and development purposes
  • One dedicated ESX3 host for Lotus Notes / Domino testing and development purposes
    • The above two servers have lower continuity requirements and are therefore stand-alone machines (not part of the cluster)
  • 1 Virtual Center Management Server

Real estate saved (focusing on servers only, not the VDI):

  • Total rack units used for VI: 30
  • Total racks used for VI: 2
  • Total rack units saved: 240
  • Total racks saved: 8
  • Total sq. meters saved: 50 (we would have had to move into a datacenter suite twice as large to accomodate for growth)
  • Total real estate cost (OTC) saved: € 30.000 (approx.)
  • Total real estate cost (MRC) saved:  € 6.000 (approx.)
    • OTC: One Time Charge
    • MRC: Monthly Recurring Charge

Power savings:

  • Extrapolated extra power requirement: 10 - 15 KiloWatts
  • Estimated monthly power savings: € 1500 - 2500

There are also additional benefits like the massive increase in continuity, the time saved on provisioning new servers and the transparency in costs.

Posted on Sunday, July 8, 2007 7:24 PM VMware and other Virtualization tools | Back to top

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