The modern databases use flexible and effective methods to manage information and designed applications. This architecture helps to create springy information systems. The computing groups of independent hardware and software components are connected and reintegrated on request of dynamic changes of sphere of business with grid architecture. Grid computing focuses to solve the follow key problems with information technology:
the control of changes of applications,
the optional dedicate hardware resources,
the work with fragmented data without degradation information potential.
Information technology resources managed in a grid include the three dimensions. They are infrastructure, applications and information. Infrastructure builds the hardware and software for creating data storage and program environment. Applications are programs logic and flows defining processes of business. Information meanings all types of data used to all necessary activities. We look to these dimensions in more detail.
Infrastructure grid resources cover into hardware components as memory, processors, storage, network and software for manage this hardware (databases, storage management, application servers and operating systems). Virtualization of infrastructure resources is sharing resources and locates for correspondent consumption. The economies repose on eliminating utilized capacity and redundant capabilities. The whole system is available, because the distribution capacity of computers among many different computers and spreading storage space across multiple disks and disk groups removes any individual components errors. This style architecture computing enables to use small individual hardware components.
Applications grid enable write business view and process flow into application software. These applications are create in any programming language. For example, application resource is the software for accept order from customer and send confirmation, the task for printing checks and routes customer call to agent. Virtualization of application resources comprises publishing application components as services to use by multiple users. The users can be people or processes. It is important make out these services into business flows.
Information grid resolve trend being of disintegrated information across an organization. It is difficult to see whole business process or information about consumer. Grid computing sees information as resource with latent value. These resources include all data in the organization and all metadata for generate sense. This data are stored in databases, local file systems, e-mail servers or are created by applications.