RAC

Overview  Architecture  Manual DB Creation in RAC 10g   Enable Archivelog Mode in RAC 10g   Clean up after failed 11g grid infrastucture    Oracle 10 RAC Installation on Linux  Oracle 10g RAC Installation on Solaris

 Oracle Real Application Clusters (RAC) Overview:

Oracle Real Application Clusters (RAC) was introduced in 2001 with Oracle9i by Oracle Corporation.RAC provides Cluster software and High Availability solution in oracle database environment.

RAC uses Oracle Clusterware which bind multiple servers as a single system.It is a unique technology that provides high availability and scalability for all application types. The Oracle RAC infrastructure is also a key component for implementing the Oracle enterprise grid computing architecture.

Oracle Clusterware is a portable cluster management solution that is integrated with Oracle Database. Oracle Clusterware is also a required component for using Oracle RAC. In addition, Oracle Clusterware enables both single-instance Oracle databases and Oracle RAC databases to use the Oracle high-availability infrastructure. Oracle Clusterware enables you to create a clustered pool of storage to be used by any combination of single-instance and Oracle RAC databases.

Oracle Clusterware is the only clusterware that you need for most platforms on which Oracle RAC operates. You can also use clusterware from other vendors if the clusterware is certified for Oracle RAC.

RAC ARCHITECTURE:

 

 

 

Oracle 10G, 11G RAC Installation Confrontations:

 Timed out waiting for the CRS stack to start

ins 08109 unexpected error