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Oracle Database Real application Cluster (RAC)

 RAC: a server for tolerance solution 

 To address server fault tolerance Oracle offers Oracle database RAC real application cluster options with this option a cluster of nodes collectively represent the database service.

  The database service does not stop if one not in the cluster fails this solution is utilised by Enterprises that require high availability applications they cannot afford extended recovery times from backups when a server becomes faulty 

 Oracle database rack 10 seats between the single instance architecture and the real application cluster 

 Technical speaking it an active passive cluster solution 

 Only one not will be at the time if that note goes down for any reason the service fails over to another node and continuous providing it service 

 This solution is suitable for business that wants to take Advantage of the rak options, but at a lower cost than the full rac license.




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