High Availability Database System
Today, we depend so heavily on information systems that system outage or loss of data is more and more intolerable. Sometimes the loss of critical data relates directly to the survivability of an enterprise. This draws our attention to the dependability of information system. According to dependability is “the ability to avoid service failures that are more frequent and more severe than is acceptable” and availability is one of the most important attributes of dependability. Since database systems are the back end of most information system, their availability is critical to the availability of whole information system.
Ensuring the continuous availability of the computing resources in the enterprise is a primary objective of today’s database administrator (DBA). All the computing horsepower in the world and secure/defensive application coding makes little difference if users and customers cannot access the resources that they depend upon to carry out their job functions. If the database and servers that support the application are unavailable, it can cost the organization both monetarily as well as in terms of reputation and goodwill. Depending on the nature of the organization and the type of application, the costs for service outages can be enormous.
Databases and also the internet have enabled worldwide collaboration and data sharing by extending the reach of database applications throughout organizations and communities. This reach emphasizes the importance of high accessibility in information management solutions. Each tiny businesses and world enterprises have users everywhere the world that needs access to information 24 hours each day. While not this information access, operations will s...
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...thening the combination of people, processes, and technology. A plan that focuses purely on technology will never achieve very high levels of availability because many of the significant factors that affect availability stem from the interaction of people and processes. Preparing the proper hardware and software platform is only a starting point. From that point on, high availability is the result of good planning and practices in combination with the appropriate technologies.
The need for high availability is driven by your business requirements—not by the presence of a specific technology. While creating a highly available environment is always desirable, it’s important to remember that the higher the level of availability that you need, the higher the associated cost. Thus, it is critical to really understand the level of availability that your business needs.
The PaaS method cloud infrastructure has saved companies millions of dollars. One downfall that the PaaS structure has is that every company relies on the PaaS also relies upon the uptime of the vendor providing the service. If a vendor goes down then depending on how bad it is can put each company using their service at a potential financial loss.
Fault tolerance is the property that enables a system to continue operating properly in the event of a failure.
It a company grows more rapidly than predicted, it may experience problems. Anticipating expected and even unexpected growth is crucial to building scalable systems that can support that development. High availability occurs when a system is continuously operational at all times. A highly available enterprise architecture is crucial to current operations because it is convenient for the company to access their systems whenever they want from wherever. If a company was not highly available, it may be challenging for people to access a system because it may prevent some from operating smoothly and slow down growth.
Security helps the organization meet its business objectives or mission by protecting its physical and financial resources, reputation, legal position, employees, and other tangible and intangible assets through the selection and application of appropriate safeguards. Businesses should establish roles and responsibilities of all personnel and staff members. However, a Chief Information Officer should be appointed to direct an organization’s day to day management of information assets. Supporting roles are performed by the service providers and include systems operations, whose personnel design and operate the computer systems. Each team member must be held accountable in ensuring all of the rules and policies are being followed, as well as, understanding their roles, responsibilities and functions. Organizations information processing systems are vulnerable to many threats that can inflict various types of damage that can result in significant losses (Harris, 2014). Losses can come from actions from trusted employees that defraud the system, outside hackers, or from careless data entry. The major threat to information protection is error and omissions that data entry personnel, users, system operators and programmers make. To better protect business information resources, organizations should conduct a risk analysis to see what
Some faculties and departments are already using Oracle applications in their day-to-day operations. As time goes by, more and more information users will be working with an application based on Oracle database technology. If you get the opportunity to be a member of an application development team, you will become familiar with the workings of Oracle and relational databases. Other users may have to learn about this popular database management system through their own experience. This article is for our readers who, as of yet, have no access to Oracle databases but have a yearning for learning what they're all about.
When CCCL Inc was a small company, keeping records and customer data by the use of spreadsheets, access databases, and manual records were realistic practices, but as the company has grown, it has outgrown such practices. Management at GRW is now searching for a centralized database solution that will allow multi-department database collaboration as well as the ability to mine data as needed, companywide. The proposed solution to the needs of the company is the installation of Microsoft SQL Server 2012. The following report addresses the type of SQL Server to implement, security for the new database, high availability, plans for backup & recovery, integration services, and other related details to ensure a smooth transition into the company’s new database.
Additionally, incorporating alternate sites with redundant servers and network infrastructure comes at a significant monetary cost and increases capital expenditures. Beyond the cost of the equipment, there is also the additional personnel required to work at these alternate sites, as well as the utilities to maintain them, which increases the operating expenditures of the business. Furthermore, these sites introduce the need for additional administration and management, while also complicating the managerial oversight of a multi-site enterprise
For any data system to fill its need, the data must be accessible when it is required. This implies the computing systems used to store and process the data, the security controls used to ensure it, and the correspondence channels used to get to it should work accurately. High accessibility systems plan to stay accessible constantly, counteracting administration interruptions because of energy blackouts, equipment disappointments, and system updates. Guaranteeing accessibility additionally includes preventing denial-of-service attacks.
Inconsistently storing organization data creates a lot of issues, a poor database design can cause security, integrity and normalization related issues. Majority of these issues are due to redundancy and weak data integrity and irregular storage, it is an ongoing challenge for every organization and it is important for organization and DBA to build logical, conceptual and efficient design for database. In today’s complex database systems Normalization, Data Integrity and security plays a key role. Normalization as design approach helps to minimize data redundancy and optimizes data structure by systematically and properly placing data in to appropriate groupings, a successful normalize designed follows “First Normalization Flow”, “Second Normalization Flow” and “Third Normalization flow”. Data integrity helps to increase accuracy and consistency of data over its entire life cycle, it also help keep track of database objects and ensure that each object is created, formatted and maintained properly. It is critical aspect of database design which involves “Database Structure Integrity” and “Semantic data Integrity”. Database Security is another high priority and critical issue for every organization, data breaches continue to dominate business and IT, building a secure system is as much important like Normalization and Data Integrity. Secure system helps to protect data from unauthorized users, data masking and data encryption are preferred technology used by DBA to protect data.
In order to fully understand the concept of a contingency plan, there are a few aspects which need to be explored. We must first define what a contingency plan is, followed by an explanation of why contingency plans are so valuable. Furthermore, an analysis of the implementation of contingency plans should be performed. Lastly, a comparison of such plans from other industries should be done, in order to comprehend the differences in both purpose and criteria.
A Database Management System (DBMS) is a software system that uses a standard way of classifying, retrieving, and running queries on data. The DBMS functions is to manage any incoming data, organize it, and provide ways for the data to be modified or extracted by users or other programs. Some examples of DBMS are PostgreSQL, Microsoft Access, SQL Server, FileMaker, Oracle,Clipper and FoxPro. Since there are so many database management systems are available, so it is important to ensure that they communicate with each other. This is because, most database software comes with an Open Database Connectivity (ODBC) driver which allows the database to incorporate with other databases.
A lot of data are not on a digital mode. (A lot is still on a paper format.) So that kind of information is very difficult to find. Some studies explain that it is nearly 25% of the effort of some employee. If all information would be easy to find on easy networks companies will win in transparency of the information. Because this effort is real...
Databases are becoming as common in the workplace as the stapler. Businesses use databases to keep track of payroll, vacations, inventory, and a multitude of other taske of which are to vast to mention here. Basically businesses use databases anytime a large amount of data must be stored in such a manor that it can easily be searched, categorized and recalled in different means that can be easily read and understood by the end user. Databases are used extensively where I work. In fact, since Hyperion Solutions is a database and financial intelligence software developing company we produce one. To keep the material within scope I shall narrow the use of databases down to what we use just in the Orlando office of Hyperion Solutions alone.
This can’t be said enough. The systems your business uses need to be connected and able to exchange information back and forth through an automated process.
The last decade can be marked as a period of significant changes in the business world. Being accustomed to utilize computers as a powerful tool with its office applications such as Microsoft Word and Excel. In the 1990s office workers first faced the opportunity to share information using the Internet (McNurlin, 2009). However, the situation became even more different with the transition to the third millennium. With a further development of information technologies, the majority of big enterprises had to reconstitute their business processes and to make the transition to the Internet economy. Enterprise resource planning (ERP), supply-chain management (SCM), customer relationship management (CRM) software and the variety of other information systems became essential components of the new economy. It can be expected, that all these complex solutions were designed to bring great benefits for different sides of the corporate activity, in particular, decisions made by top-managers are expected to become nearer to the ideal, customer service is to be improved and collaboration more prolific. Nevertheless, to ensure the desired results it should be taken into account that the key concept of these reorganizations is an information or a data, dealing with which can be a serious issue, and wide utilizing of the data warehouses in contemporary organizations confirms this fact.