12-05-2011, 03:26 PM
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INTRODUCTION
Scaling a business often involves OPM (other people’s money), through partnerships or issuing of stock
In the real world, scaling a computing system follows a similar approach, in the form of resource outsourcing, such as using (other people’s systems) OPS. The use of OPS has a strong economic incentive: it does not make sense to spend millions of dollars in a large system for occasional use only.
Virtualization makes the sharing of a physical resource practical, whereas the application of service oriented principles facilitates the reuse of these resources.
HISTORY
virtualization research done at IBM in the early 1960s for the IBM 360/671, the demand paging research for the Atlas computer at the University of Manchester and the segmented memory design of the Burroughs B5000
VIRTUAL SERVICE ORIENTED GRIDS= VIRTUAL+SERVICE ORIENTED +GRIDS=
What is GRID
grids are association with utility computing and the analogy of utility computing with electrical power systems, it is likely that the term grid was coined to capture the concept of an electrical power grid, but applied to computer systems.
Structure of computing grids
Advantages of grid computing
Grid computing reduce the cost of computer resources connected by network i.e. processing and storage resources.
With the help of networking the computing resources are assumed to be distributed, within a room, across buildings, or even across cities and continents .
Building a single, powerful computer becomes more expensive than a group of smaller computers whose collective performance equals the performance of the single computer. So it increase performance.
Example of grid computing
VIRTUALIZATION
Virtualization is also justifiable in environments where the cost of the hardware is a small fraction of the delivered cost of the application or in data centers when power or space limitations impose limitations on the number of physical servers that can be deployed in the data center.
WHY WE NEED VIRTUALIZATION
Virtualization allowed machines with limited physical memory to emulate a much larger virtual memory space.
Service Orientation
A service oriented architecture, or SOA is any structured combination of services and technologies designed to support the service oriented model.
For instance, an automobile repair shop service in turn uses services from power utility companies, telecommunications services, accounting and legal services.
Uses of virtual service oriented grids
A virtual service oriented grid environment will still be useful for processing home loans or performing credit card transactions.
The performance of these systems will be infinitely scalable.
New services can be put together by composing more primitive services using compatible protocols.
An Industry Example
A virtualized service environment will make dynamic behaviors more practical. Decision makers will be able to gather supporting data in a fraction of the time considered possible today. An application could more easily be built to address a specific question or support a short duration that providing increased business agility.
For example:- A food industry marketing analyst can perform a study on purchase patterns of a certain line of products using business intelligence (BI) methods.
Using Virtual Service Grid Techniques to Modernize Data Centers
Consolidated IT resources
Agile IT operations
Predictable high performance and scalability
Continuous availability
The Benefits of Virtual Service Grids in IT sector
Responding Quickly to Volatile Business Needs
Responding to Dynamic Workloads in Real Time
Providing Predictable Service Levels
Reducing Costs with Improved Efficiency and Smarter Capacity Planning
Conclusion
IT departments are saving energy, reduce systems management costs, and get a better return on their hardware investments with the help of grid computing technology .That builds on its strong foundation of scalable, fault-tolerant database and middleware clusters; virtualized computing and storage resources; and highly automated, end-to-end systems management.
