Cluster Software For The Database Domain; Cluster Software For The Oracle Solaris Application Domains - Oracle SuperCluster T5-8 Owner's Manual

Oracle SuperCluster T5-8 uses the following clustering software:
"Cluster Software for the Database Domain" on page 85
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"Cluster Software for the Oracle Solaris Application Domains" on page 85
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Cluster Software for the Database Domain

Oracle Database 11g Real Application Clusters (Oracle RAC) enables the clustering of the
Oracle Database on the Database Domain. Oracle RAC uses Oracle Clusterware for the
infrastructure to cluster the Database Domain on the SPARC T5-8 servers together.
Oracle Clusterware is a portable cluster management solution that is integrated with the
Oracle database. The Oracle Clusterware is also a required component for using Oracle RAC.
The Oracle Clusterware enables you to create a clustered pool of storage to be used by any
combination of single-instance and Oracle RAC databases.
Single-instance Oracle databases have a one-to-one relationship between the Oracle database
and the instance. Oracle RAC environments, however, have a one-to-many relationship between
the database and instances. In Oracle RAC environments, the cluster database instances access
one database. The combined processing power of the multiple servers can provide greater
throughput and scalability than is available from a single server. Oracle RAC is the Oracle
Database option that provides a single system image for multiple servers to access one Oracle
database.
Oracle RAC 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. Having multiple instances access a single
database prevents the server from being a single point of failure. Applications that you deploy
on Oracle RAC databases can operate without code changes.
Cluster Software for the Oracle Solaris Application
Domains
The Oracle Solaris Cluster software is an optional clustering tool used for the Oracle Solaris
Application Domains. On Oracle SuperCluster T5-8, the Oracle Solaris Cluster software is used
to cluster the Oracle Solaris Application Domain on the SPARC T5-8 servers together.
Understanding Clustering Software
Understanding the System 85