Friday, July 24, 2026

Oracle Database - 2-Node RAC Cluster on Physical Servers with Data Guard (Single Standby - Without FSFO)

2-Node RAC on Physical Servers with Single Physical Standby and Data Guard (Without FSFO) architecture diagram, showing:

  • Primary: 2-node Oracle RAC cluster
  • DR: Single-instance physical standby server
  • Data Guard Broker (DGMGRL)
  • Manual Switchover and Failover
  • No Observer Server
  • SYNC + AFFIRM redo transport
  • Maximum Availability mode
  • Near-zero RPO
  • Manual role transitions controlled by DBA





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