Setting Up RAC
Cluster Ready Services (CRS) has been introduced in Oracle 10g Real Application Clusters (RAC) to provide a standard cluster interface on all platforms, enabling improved high-availability operations. CRS should be installed prior to installing 10g RAC in a HOME other than ORACLE_HOME.
A detailed explanation of CRS is given in Oracle Database Real Application Clusters Administrator's Guide 10g and Oracle Real Application Clusters Deployment and Performance Guide 10g.
There are several combinations with regard to installing RAC in your environment. To name but a few of the most common scenarios: You can do a fresh installation, convert a standby database on Data Guard to RAC, and upgrade existing RAC instances. Oracle recommends ...
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