Definition of irrigation. 1  1 : the therapeutic flushing of a body part with a stream of liquid. 2  2 : the watering of land by artificial means to foster plant growth.
Answer: To start with, Oracle Real Application Clusters (RAC) are a database system involving a configuration of multiple hosts or servers joined together with clustering software and accessing the shared disk storage structures.
Oracle Clusterware is portable cluster software that allows clustering of independent servers so that they cooperate as a single system. Oracle Clusterware was first released with Oracle Database 10g Release 1 as the required cluster technology for Oracle Real Application Clusters (RAC).racle Clusterware, combined with Oracle Automatic Storage Management (ASM), is Oracleâs private cloud infrastructure software (Oracle Grid Infrastructure). The integration of these two technologies sets a new level in the management of private cloud based applications.