The MAA Gold Cross-Region Far Sync Standby pattern gives you a zero data loss solution when network latency or distance between primary and standby are too great. When a transaction commits, the redo is acknowledged by a fault independent far sync server that validates and resubmits the changes to remote standby. If a primary database failure or possibly site failure occurs, the surviving far sync server sends the last committed changes to remote standby ensuring zero data loss.

Note that this configuration requires Oracle Active Data Guard for Far Sync, although other MAA Gold patterns have expanded to include Oracle Data Guard or Oracle Active Data Guard.

For more information about Oracle capabilities used in this MAA reference architecture, or to see the expected downtime for planned and unplanned outages, click on the objects in the graphic above.

Learn more about Oracle MAA blueprints for reduced planned and unplanned downtime for Oracle Database on-premises, on Exadata Database Machine, and on Oracle Cloud.

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