Virtualization and Cloud Computing A Testing Solution. Reema Majumdar

Transcription

1 Virtualization and Cloud Computing A Testing Solution Reema Majumdar

2 Software Testing : A Costly Necessity A Sogeti Survey conducted at TestExpoSpring 2010in London, UK : Among software testers and Quality Assurance specialists : Senior management regards software testing as a 'costly necessity'.

3 Markets Effected Real estate Pharmaceuticals Legal & intellectual property Engineering CRM & ERP e-learning & education Healthcare Enterprise Content Management

4 Why Virtualization/Cloud Computing? Reducing Costs of Infrastructure and maintenance. Concentrate on one s own business. Increase testing efficiency constantly. Increase business agility. Small Scale Companies. Reduce risk!

5 Forbes.com : An Example 1. You are Forbes.com. 2. You offer on-line real time stock market data. Why pay for capacity weekends, overnight? 9 AM - 5 PM, M-F Rate of Server Access

6 Forbes.com Example : Solution! Host the web site in Amazon's EC2 Elastic Compute Cloud Provision new servers every day Deprovision them every night Pay just $0.10 per server per hour, and let Amazon worry about the hardware!

7 Virtualization : What is it? According to the VMwarewhite paper, Virtualization Overview, The ability to run multiple operating systems on a single physical system and share the underlying hardware resources Virtual Machine Monitor (VMM) layer between Guest OS and hardware

8 Virtualization : How does it work? Encapsulate the server software away from the hardware. Servers end up as mere files stored on an enterprise storage. Serviceable by one or more hosts, and one host may house more than one virtual server. Can still be referred to by their function i.e. server, database server, etc. If the environment is built correctly, virtual servers will not be affected by the loss of a host. When taxed too much, one can adjust the amount of resources allocated to that virtual server. Virtual servers themselves can be migrated from host to host almost at will.

9 Virtualization : Reasons for using it Source :

10 Cloud Computing : What is it? According to Alan Williamson, quoted in Cloud BootCamp March 2009 The provisioning of services in a timely (near on instant), on-demand manner, to allow the scaling up and down of resources. Various providers let you create virtual servers (Public clouds e.g. Amazon EC2, Microsoft, IBM, Sun.) Set up an account, perhaps just with a credit card. You create virtual servers ("virtualization"). Choose the OS and software each "instance" will have. It will run on a large server farm located somewhere. You can instantiate more on a few minutes' notice. You can shut down instances in a minute or so. They send you a bill for what you use!

11 Cloud Computing : How does it work? Enterprise Phase The IT inventory, rethink the IT organization and push vendors on virtualization support. Dynamic Phase Plan for massive scale, VM mobility and new levels of automation. Cloud Phase IT business decisions, Standards and Extending management tools into the cloud.

12 Private Clouds! A company can create a private cloud, with more control over security. The private cloud project began a couple years ago which is now used by Cisco. Reduced managerial overhead have shrunk costs for routine maintenance to less than 50 percent of Cisco s total IT budget. As outlined in a 2011 study by the Aberdeen Group, the private cloud saves a total of 12 percent combined annual costs savings over public clouds on a per-application basis.

13 Private Clouds!

14 Performance and Scaling Issues Companies lose customers Slow access to applications and data Throughput Scalability Source :

15 Conclusion Small and Large Scale companies alike, Virtualization and Cloud Computing is being adapted at an almost parallel rate globally. Source :

16 Conclusion Source :

17 Conclusion

18 Questions?