Content deleted Content added
Line 126:
== Advantages ==
Data Guard provides [[high availability]] for a database system. It can also reduce the human intervention required to switch between [[databases]] at [[disaster recovery|disaster-recovery]] ("failover") or [[upgrade]]/[[Preventive maintenance|maintenance]] ("switchover") time.
Through the use of standby redo log files, Data Guard can minimize data loss.<ref>
{{cite book
| last = Kumar
| first = Bipul
| series = Oracle In-Focus Series
| volume = 19
| year = 2005
| publisher = Rampant TechPress
| isbn = 9780974599380
| page = 277
| quote = With the introduction of [...] standby redo logs [...] it is possible to have a logical standby database be a part of a data Guard configuration running in maximum protection mode. In this way, the Data Guard SQL Apply method offers complete zero-data-loss support.
}}
</ref>
== Disadvantages ==
| |||