Always On Bronze v4

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The Always On Bronze architecture includes the following:

  • Two BDR data nodes
  • One BDR witness node that doesn't hold data but is used for consensus
  • Two HARP-Proxy nodes for routing application traffic to the "lead" master
  • One barman node for backup and recovery can be onsite or offsite

BDR and HARP-Proxy nodes should be spread across availability zones.

Always On Bronze architecture

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