>My personal opinion is that filesystem level replication (think drbd) is the better approach for PostgreSQL That's basically what their Aurora variant does. I

>My personal opinion is that filesystem level replication (think drbd) is the better approach for PostgreSQL That's basically what their Aurora variant does. It uses clustered/shared storage then uses traditional replication only for cache invalidation (so replicas know when data loaded into memory/cache has changed on the shared storage)