CHAPTER
15
Extending Oracle RAC for Maximum Availability
Oracle Real Application Clusters is a popular solution for scalability across enterprises. Oracle designed Oracle RAC primarily as a scalability and availability solution that resides in a single datacenter. However, it’s possible to build and deploy an Oracle RAC system where the nodes in the cluster are separated by great distances. Having nodes in separate locations provides continuous data availability and limited disaster recovery in case of site failures.
The choice of extending Oracle RAC depends on the failure it’s designed to address. To protect against multiple points of failure, ...
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