Oracle Homes in an Oracle Real Application Clusters Environment Form

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[Music] hi in this video I'm going to introduce you to the concept of RAC or real application clusters I'll use this board to simulate and tell you how an RAC instance works in a standalone database we know there is a memory component called as an instance which connects to the database so we have a connection of file data files control file reader log file and there is an instance created with an SGA and background process through which the users are able to connect and work so if I had an application it will connect to the instance and work now what if this computer goes down the instance is gone and your application loses connectivity this is number one where we are talking about availability in other words called as a chain so in case mind node in which my instance is running goes down my operating system goes down or a network connectivity goes down or if my instance crashes my application loses connectivity to the database number two let's say I want to increase the load on the a