The software which Oracle Corporation markets as Oracle Data Guard forms an extension to the Oracle RDBMS. It aids in establishing and maintaining secondary "standby databases" as alternative/supplementary repositories to production "primary databases".
Oracle provides both GUI and command-line tools for managing Data Guard configurations.
Data Guard supports both physical standby and logical standby sites. Oracle Corporation makes Data Guard available only as a bundled feature included within its "Enterprise Edition" of the Oracle RDBMS.
With appropriately set-up Data Guard operations, DBAs can facilitate failovers or switchovers to alternative hosts in the same or alternative locations.
Read more about Oracle Data Guard: Configurations, Advantages, Disadvantages
Famous quotes containing the words oracle, data and/or guard:
“Know thyself.”
—Inscription on the Oracle of Apollo at Delphi, Greece, 6th century B.C.....
“Mental health data from the 1950’s on middle-aged women showed them to be a particularly distressed group, vulnerable to depression and feelings of uselessness. This isn’t surprising. If society tells you that your main role is to be attractive to men and you are getting crow’s feet, and to be a mother to children and yours are leaving home, no wonder you are distressed.”
—Grace Baruch (20th century)
“There is only one element that can break the Afrikaner, and that is the Afrikaner himself. It is when the Afrikaner, like a baboon shot in the stomach, pulls out his own intestines. We must guard against that.”
—P.W. (Pieter Willem)