difference between dataguard and rac
HI
rac is a cluster of machines (nodes) whereby the oracle instance is being switched around if the node which houses the instance has some problems?
dataguard is a configuration of 2 machines. one is the production and the other is the standby, exact replica of the production.
so the difference between the two is that rac is highly available whereas the dataguard ensures data integrity. Since if the one oracle instance in rac has problem, then a restore will be inevitable.
Please advise.