Combination Active/Active High Availability + Disaster Recovery Site
While our active/active high availability (HA) patterns protect against node or availability zone outages, combining this pattern with a disaster recovery (DR) site can also help protect against a regional outage.
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In this pattern, an active/active HA cluster handles the primary load in the primary data center or spreads across AZs in one region.
Then, at a DR site with a second data center or in a second region, you stand by ready to set up another active/active HA cluster in the event of a regional outage.
Combines With
This pattern combines the Disaster Recovery Site and On-Prem Active/Active High Availability or Cloud Active/Active High Availability patterns.
You can also combine this pattern with Federated Repositoriesas illustrated inCombination Active/Active High Availability + Disaster Recovery Site + Federated Repositories.
Ensure you have perfected the Backup/Same-Site Restore pattern before combining it with more advanced patterns like this one.
Problems Addressed
Data loss
Data corruption
DR across data centers
DR across cloud regions
Scalability
Provides HA
Available Resources
We have the following comprehensive help topics and sample files to help implement this pattern: