The upgrade run command failed on:
2025-01-21 10:47:32.670331 | 566fdea1-0004-ba47-45c0-000000026602 |      FATAL | Restart ovn-dbs service (pacemaker) | control0001-cdm | error={"changed": false, "error": "Error: unable to get cib\n", "msg": "Failed, to set the resource to the state restart", "output": "", "rc": 1}

Troubleshooting the issue we noticed that, the the following service "OS::TripleO::Services::OVNDBs: /usr/share/openstack-tripleo-heat-templates/deployment/ovn/ovn-dbs-pacemaker-puppet.yaml" was still included in the neutron-ovn-dvr-ha.yaml environment used by the Customer (yaml file aligned to Red Hat OpenStack 16.2)

Despite the several template changes required in the FFU document related to the upgrade from Red Hat OpenStak 16.2 to 17.1 [1], there isn't any warning / recommendation related to the fact that the service "OS::TripleO::Services::OVNDBs" isn't more used in 17.1 and for this reason the neutron-ovn-dvr-ha.yaml (if it's already included in the starting Customer environments used) has to be updated too.

This issue was discussed in the past at https://redhat-internal.slack.com/archives/C04J1D40W4W/p1697722115462389?thread_ts=1697613517.550639&cid=C04J1D40W4W

Pre FFU environments attached to this ticket: pre-ffu-environments.tar.gz (16.2 environments)

[1] https://docs.redhat.com/en/documentation/red_hat_openstack_platform/17.1/html-single/framework_for_upgrades_16.2_to_17.1/index#changes-in-red-hat-enterprise-linux-9