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  1. OpenShift Bugs
  2. OCPBUGS-9251

OpenShift on OpenStack Reference Architecture recommends unsupported HA models

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      Document URL: https://access.redhat.com/documentation/en-us/reference_architectures/2021/html/red_hat_openshift_container_platform_4.6_and_4.7_on_red_hat_openstack_platform_16.1/design-considerations#nova-availability-zones

      Section Number and Name: 3.4.2.3. Nova availability zones

      Describe the issue:
      We do not support when an OpenShift cluster is deployed across multiple OpenStack Availability Zones.
      This is named "Stretched clusters" and will be worked on during 4.12 cycle. See https://issues.redhat.com/browse/OSASINFRA-2852

      A cluster (3 masters + X workers) should all be within the SAME AZ.

      Suggestions for improvement:
      Remove that section, this is not what we recommend for HA.

              rhn-gps-mbooth Matthew Booth
              emacchi@redhat.com Emilien Macchi
              Ramón Lobillo Ramón Lobillo
              Red Hat Employee
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