Always On Bronze

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