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A financial services organization is designing a high availability (HA) and disaster recovery (DR) strategy for a mission-critical database in Google Cloud. The system has the following requirements:
Which combination of primary and secondary storage location types should the organization implement?
This architecture combines in-region zonal high availability with cross-region disaster recovery replication. The primary database instance processes active read and write transactions while continuously replicating data to two separate locations: a standby instance in a secondary zone within the same primary region, and a read/standby replica located in an entirely different geographic secondary region.
Combining zonal replication for HA with regional replication for DR directly aligns with enterprise best practices for mission-critical databases, matching maximum protection against localized faults without compromising transactional performance.
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