Hi. Issue persists, perhaps it's mirrors/sync having troubles.
-> $ dnf search ceph --enablerepo centos-storage-common CentOS-10 - Storage SIG - common 28 kB/s | 154 kB 00:05 Errors during downloading metadata for repository 'centos-storage-common': - Status code: 404 for https://mirrors.centos.org/metalink?repo=centos-storage-sig-all-all-10-strea... (IP: 38.145.60.21) - Status code: 404 for https://mirrors.centos.org/metalink?repo=centos-storage-sig-all-all-10-strea... (IP: 152.19.134.198) Error: Failed to download metadata for repo 'centos-storage-common': Cannot prepare internal mirrorlist: Status code: 404 for https://mirrors.centos.org/metalink?repo=centos-storage-sig-all-all-10-strea... (IP: 38.145.60.21)