configuration-options-for-ha-groups.adoc

permalink	sidebar	keywords	summary
admin/configuration-options-for-ha-groups.html	sidebar	ha groups, best practices, high availability group options	The following diagram provides examples of different ways you can configure HA groups. Each option has advantages and disadvantages.

Configuration options for HA groups

The following diagrams provide examples of different ways you can configure HA groups. Each option has advantages and disadvantages.

In the diagrams, blue indicates the primary interface in the HA group and yellow indicates the backup interface in the HA group.

The table summarizes the benefits of each HA configuration shown in the diagram.

Configuration	Advantages	Disadvantages
Active-Backup HA	Managed by StorageGRID with no external dependencies. Fast failover.	Only one node in an HA group is active. At least one node per HA group will be idle.
DNS Round Robin	Increased aggregate throughput. No idle hosts.	Slow failover, which could depend on client behavior. Requires configuration of hardware outside of StorageGRID. Needs a customer-implemented health check.
Active-Active HA	Traffic is distributed across multiple HA groups. High aggregate throughput that scales with the number of HA groups. Fast failover.	More complex to configure. Requires configuration of hardware outside of StorageGRID. Needs a customer-implemented health check.