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How Do I Deploy DDS Instances Across AZs?

Currently, you can purchase 3-AZ cluster or replica set instance of the Community Edition. The created instances are randomly distributed in different AZs.

The deployment policies for different types of instances are as follows:

  • Cluster instance: If the instance is deployed across three AZs, the mongos, shard, and config nodes are deployed in three AZs for disaster recovery.
  • Replica set instance: If the replica set instance is deployed across three AZs, the primary, secondary, and hidden nodes are deployed in three AZs for disaster recovery.
Parent topic: Database Usage