1 / 19

Cloud Computing & Business

Cloud Computing & Business. Tim Preston Tuesday, September 27, 2011. Presentation Gameplan. Cloud computing & business introduction Business approaches to cloud computing Cloud financial decision models Recommendations. Cloud Computing Quotes… and Hidden Agendas. Articles Surveyed.

claudiom
Download Presentation

Cloud Computing & Business

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Cloud Computing& Business Tim Preston Tuesday, September 27, 2011

  2. Presentation Gameplan • Cloud computing & business introduction • Business approaches to cloud computing • Cloud financial decision models • Recommendations

  3. Cloud Computing Quotes…and Hidden Agendas

  4. Articles Surveyed • Dispelling the vapor around cloud computing. IBM • Above the Clouds: A Berkeley View of Cloud Computing. UC Berkeley • Cloud Computing ROI Assessment. BTC Logic • Cost of cloud computing, expensive! up.time IT Systems Management Blog

  5. * * The Berkeley article argues that private clouds are not included in cloud computing.

  6. IBM’s take on the cloud • Industry-wide survey of companies in 2009 • Findings: • Private clouds > public clouds right now • Privacy/security are #1 barrier • Many workloads are cloud-inappropriate • Survey bias: large companies (1k-10k employees) • My opinion: small/startup companies need the cloud more than anyone!

  7. Berkeley View Next: Berkeley economic arguments to support cloud computing

  8. Berkeley Cloud Performance Assessment • In practice, virtual machines can share CPU’s and main memory surprisingly well. • CPU’s already handle context switching well; VM-switching is similar to a special case of this. • Ex., when running the STREAM memory benchmark on 75 EC2 instances, μ = 1355 MB/s, and σ = 52 MB/s (< 4% of μ) • I/O, via disks and the network, are another story. • Ex., for a 1 GB disk write by 75 EC2 instances, μ = 55 MB/s, and σ = 9 MB/s (> 16% of μ) • Network issues will be discussed next…

  9. Data transfer bottlenecks

  10. Berkeley Cloud Decision Model If this statement is true, then we are better off with a cloud.Note: this model assumes that revenue is proportional to user hours, and that revenue is not affected by whether we’re on a cloud or not.

  11. More Detailed Cloud Decision Modeling • Next, we’ll examine BTC Logic’s model • Based on ROI (Return on Investment) analysis • Concrete calculations are based on a blog entry by up.time IT Systems Management Blog

  12. http://www.uptimesoftware.com/uptimeblog/cloud-virtualization/cost-of-cloud-computing-expensive/http://www.uptimesoftware.com/uptimeblog/cloud-virtualization/cost-of-cloud-computing-expensive/

  13. Recommendations FOR clouds • Startup business can greatly benefit from public clouds by “testing the waters” without making risky hardware purchase decisions • Servers with “spike & flatline” demand • Non-computing businesses: public clouds can help companies focus on core competencies • Web software companies: public clouds can allow all employees to work in one location – not necessarily the location where web apps are hosted • Ex., California developers & Idaho electricity costs

  14. Recommendations AGAINST clouds • Software shouldn’t be in the cloud if: • It’s subject to government regulations or auditability requirements; ex., Sarbanes-Oxley • It processes very sensitive information; ex., health care records • Its workloads are network-heavy, and heavy control of bandwidth is required; ex., streaming audio/video applications • It can be easily run independently on a user’s desktop (why bother putting it on a cloud?)

More Related