The data stored in the databases of your organization's computer systems is extremely valuable. In many cases, this data represents your most valuable asset. Protecting this asset is crucial for any Oracle site.
As a DBA, system administrator, or system architect, you will probably have to use a variety of options and techniques to ensure that your data is adequately protected from a catastrophe. Of course, implementing proper backup operations is the foundation of any disaster-prevention strategy, but there are other ways to avoid a variety of disasters, from simple disk failures to complete failure of your primary database site.
Availability can mean different things for different organizations. For this discussion, we will consider a system to be available when that system is both up which means that the database can be accessed by users and working which means that the database is delivering the expected functionality to users with the expected performance. Oracle high availability features are called Oracle HA.
Businesses have always depended on their data being available. With the increased use of the World Wide Web as a way to share data with outside world, database failures can have an even more dramatic impact on business. Failure of web-based system with links outside a company's employees are unfortunately, immediately visible to the outside world and can seriously affect the company's financial health as well as its image and the loyalty of its customers. Consider the Internet service offered by UPS and FedEX to share package status and tracking with their customers. As customers come to depend heavily on a service offered over the Web, interruptions in that service can cause these same customers to move to competitors.
Repeated failures of systems like these would have a serious and immediate impact on customer satisfaction.
With Oracle, you can guarantee that your precious data is highly available. Some of the facets of high-availability solutions are part of the Oracle software, such as automatic crash recovery and the real application cluster feature. Some other facets are available from third-party vendors, such as hardware failover solutions and some backup managers. Finally, some of the most important facets of a high-availability solution are dependent on implementing appropriate procedures to safeguard your data.
To implement a system that delivers high availability, you must include techniques to avoid downtime, such as redundant hardware, as well as techniques to allow recovery from disasters, such as implementing the appropriate backup routines.
As a DBA, system administrator, or system architect, you will probably have to use a variety of options and techniques to ensure that your data is adequately protected from a catastrophe. Of course, implementing proper backup operations is the foundation of any disaster-prevention strategy, but there are other ways to avoid a variety of disasters, from simple disk failures to complete failure of your primary database site.
Availability can mean different things for different organizations. For this discussion, we will consider a system to be available when that system is both up which means that the database can be accessed by users and working which means that the database is delivering the expected functionality to users with the expected performance. Oracle high availability features are called Oracle HA.
Businesses have always depended on their data being available. With the increased use of the World Wide Web as a way to share data with outside world, database failures can have an even more dramatic impact on business. Failure of web-based system with links outside a company's employees are unfortunately, immediately visible to the outside world and can seriously affect the company's financial health as well as its image and the loyalty of its customers. Consider the Internet service offered by UPS and FedEX to share package status and tracking with their customers. As customers come to depend heavily on a service offered over the Web, interruptions in that service can cause these same customers to move to competitors.
Repeated failures of systems like these would have a serious and immediate impact on customer satisfaction.
With Oracle, you can guarantee that your precious data is highly available. Some of the facets of high-availability solutions are part of the Oracle software, such as automatic crash recovery and the real application cluster feature. Some other facets are available from third-party vendors, such as hardware failover solutions and some backup managers. Finally, some of the most important facets of a high-availability solution are dependent on implementing appropriate procedures to safeguard your data.
To implement a system that delivers high availability, you must include techniques to avoid downtime, such as redundant hardware, as well as techniques to allow recovery from disasters, such as implementing the appropriate backup routines.
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