Oracle Database High Availability
Databases and the Internet have enabled worldwide
collaboration and information sharing by extending the reach of
database applications throughout organizations and communities. Both
small businesses and global enterprises have users all over the world
who require access to data 24 hours a day. Without this data access,
revenue and customers can be lost, penalties can be owed, and bad press
can have a lasting effect on customers and a company's reputation.
Building a high availability IT infrastructure is critical to the
success and well being of all enterprises in today's fast moving
economy.
An effective High Availability (HA) solution must
address both unplanned and planned causes of downtime to achieve a
truly fault tolerant and resilient IT infrastructure. Unplanned
downtime is primarily the result of computer failures, data failures
and human error. Planned downtime is primarily due to data changes or
system changes that must be applied to the production system
Equally important, an HA solution must be
practical to implement - minimizing acquisition cost and operational
complexity while being able to efficiently scale-out to meet any
performance requirement as business needs evolve.
Oracle Database 11g Release 2 provides integrated,
Oracle-aware capabilities to address both planned and unplanned
downtime using the Oracle
Maximum Availability Architecture (MAA). MAA
is resilient to all types of unplanned outages, includes comprehensive
capabilities that eliminate or minimize planned downtime, and can be
deployed on a lower-cost, highly resilient systems architecture that
can scale-out to handle any performance requirement.
Technical details are provided in the collateral
listed below.