# 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](https://help.sonatype.com/en/disaster-recovery-site.html "Disaster Recovery Site") and [On-Prem Active/Active High Availability](https://help.sonatype.com/en/on-prem-active-active-high-availability.html "On-Prem Active/Active High Availability") or [Cloud Active/Active High Availability](https://help.sonatype.com/en/cloud-active-active-high-availability.html "Cloud High Availability") patterns.
- You can also combine this pattern with [Federated Repositories](https://help.sonatype.com/en/federated-repositories.html "Federated Repositories") as illustrated in [Combination Active/Active High Availability + Disaster Recovery Site + Federated Repositories](https://help.sonatype.com/en/combination-active-active-high-availability---disaster-recovery-site---federated-repositories.html "Combination Active/Active High Availability + Disaster Recovery Site + Federated Repositories").
- Ensure you have perfected the [Backup/Same-Site Restore](https://help.sonatype.com/en/backup-same-site-restore.html "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:

- [High Availability Deployment Options](https://help.sonatype.com/en/high-availability-deployment.html "High Availability Deployment")
- [System Requirements for High Availability Deployments](https://help.sonatype.com/en/system-requirements-for-high-availability-deployments.html "Requirements for High Availability")