Journal Content
OpenStack at Risk of becoming Vendor Specific
Tags: cloud management, openstack, openstack api
Using Cloud for Disaster Recovery - Business Case - Best Practices and Lessons Learned
Tags: application dr, cloud dr, cloud dr business case, disaster recovery
Cloud Management – Various Solutions and Standards
Tags: cloud management, kaavo system definition, ovf, tosca
Who's Managing Your PaaS Apps?
Tags: app centric, application centric vs. infrastructure centric, application deployment, application-centric, cloud computing, cloud deployment, cloud management, cloud management software, deployment automation, disaster recovery, iaas, paas
Cloud Management – Why we selected an Agentless approach instead of using Agents?
Tags: cloud deployment, cloud management, cloud management software
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IT Evolution From Dedicated Physical Servers To Cloud: Benefits and Challenges

After the earlier blog discussing the evolution of IT, I had several discussions on  the benefits and challenges of virtualization, private, and public clouds.  Following bar chart is an attempt to capture the benefits and challenges of various phases of IT evolution from the days of having dedicated physical servers for each application to the use of public cloud. 

The chart is self explanatory, some key points to note are:

  • Going from virtualization to private cloud is basically a step to provide self service capabilities to the application owners.  It increases flexibility, improves time to market, and also increases the management complexity, as it adds another layer of abstraction
  • The biggest advantage of using public cloud is reduction in fix costs, as you don’t have to build the capacity for exceptional peak cases.  Several IT activities have elastic demand, development, functional testing, load testing, end of quarter processing etc.
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