Oracle - What is RAC and how is it different from non RAC databases? posted by
Babu Kunwar
What is RAC and how is it different from non RAC databases?
Oracle Real Application Clusters (RAC) is a software component we can add to a
high-availability solution that enables users on multiple machines to access a
single database with increased performance. RAC comprises two or more Oracle
database instances running on two or more clustered machines and accessing a
shared storage device via cluster technology. To support this architecture, the
machines that host the database instances are linked by a high-speed
interconnect to form the cluster. Oracle RAC offers features in the following
areas:
-
Scalability
-
Availability
-
Load balancing
-
Failover
|
