Database Reference
In-Depth Information
With RAC One Node, Oracle offers a similar solution to deal automatically with long unplanned as well as
planned downtimes. However, Oracle RAC One Node has the upper hand over any traditional third-party database
failover solution. The following are some things that Oracle RAC One Node provides for that the competition
does not:
•
Database and OS patching while the database continues to be available
•
Online storage migration and consolidation when ASM is used
•
Easy upgrade to a full RAC database, with no downtime
•
Monitoring of database and Clusterware health status
•
Faster database failure notification to clients, leading to quicker reconnections
•
Automatic restart of an instance in the event of problems, either on the same node in the
cluster or on a different node, whichever is needed
Most importantly, RAC One Node provides a single-vendor solution. You can easily implement it without having
to tie together multiple products. Support comes from a single source.
Summary
In a nutshell, this chapter explains the concepts and overall benefits of Oracle's RAC One Node feature. We've also
covered deployment of RAC One Database binaries and how to create a RAC One Node database using the DBCA
tool. Also, we demonstrated how to convert a database online and showed how to scale out to a full RAC database
to achieve load balancing solutions. When you need High Availability solutions for your single-instance database to
confront planned and unplanned outages, RAC One Node is the perfect choice.