Natural or human-induced disasters can occur at any time and can impact the availability of services and workloads running in a given Amazon Web Services (AWS) Region. To mitigate the risks, you must develop a disaster recovery (DR) plan that incorporates the built-in cross-Region capabilities of AWS services. For AWS services that do not inherently provide cross-Region functionality, the DR plan must also provide a solution to handle their failover across AWS Regions.
This pattern guides you through a disaster recovery setup involving two Amazon Aurora MySQL-Compatible Edition database clusters in a single Region. To meet DR requirements, the database clusters are configured to use the Amazon Aurora global database feature, with a single database spanning multiple AWS Regions. An AWS Database Migration Service (AWS DMS) task replicates data between the clusters in the local Region. AWS DMS, however, currently doesn’t support task failover between Regions. This pattern includes the steps required to work around that limitation and independently configure AWS DMS in both Regions.
