This section highlights the various advantages that COD provides when you deploy multiple availability zones on your COD environment over a single availability zone.

Table 1. Key advantages
Advantages Descriptions
High availability Supports high availability for your application with automatic database failover. It ensures that you do not lose any data and zero manual intervention.
Resilience COD ensures to keep the data on your standby database instance up to date with the primary.
Fault tolerance Enhances availability by deploying a standby instance in a second AZ, and achieve fault tolerance in the event of an AZ or database instance failure.