4.3. Replicated Volumes with Replica Count greater than 3

The replicated volumes create copies of files across multiple bricks in the volume. It is recommended that you use replicated volumes in environments where high-availability and high reliability are critical. Creating replicated volumes with replica count more than 3 is under technology preview.

For more information, refer the section Creating Replicated Volumes in the Red Hat Gluster Storage 3.1 Administration Guide.