Describe the issue: In RHCS 5.0 (pacific) release, we have added a warning to check for mismatched daemon versions: https://github.com/ceph/ceph/pull/36759/ This is a request to document this in our RHCS Upgrade documentation. Suggestions for improvement: https://github.com/ceph/ceph/pull/36759/commits/9e469f5b314bfb0767f71df029eaaeab08750104 Document URL: https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/5/html-single/installation_guide/index?lb_target=preview#upgrading-a-red-hat-ceph-storage-cluster-from-rhcs-4-to-rhcs-5 Product Version: Red Hat Ceph Storage 5.0 (16.2.0-108.el8cp) Environment Details: Any other versions of this document that also needs this update: Additional information: RFE BZ : https://bugzilla.redhat.com/show_bug.cgi?id=1464983 Upstream Pacific Trello card : https://trello.com/c/HzBuJnyI/579-detect-and-report-daemon-version-mismatches