Posted in Belajar, Oracle

Exploring Cluster Database

What is a cluster database

  • Oracle RAC is a software option to Oracle database
  • Multiple servers running Oracle software simultaneously and still accessing a single database
  • RAC harnesses the power of multiple low-cost computers to server as a single large computer for database processing

RAC vs non RAC

Non RAC

  • Single database
  • Single instance on single server

RAC

  • Single database
  • Multiple servers running an instance in each

Ease of RAC operation

  • Cluster database home page provides a unified and simple way to view
    • All the targets in the clusters
    • All the instances of the database
    • The state of interconnects in the cluster
  • Cluster database instance home page displays
    • Current state of an instance

 

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