クラスタの正常なシャットダウン手順がダルくない方が良いのだが
2.10. Red Hat Ceph Storage クラスターの電源をオフにして再起動 | Red Hat Product Documentation
https://docs.redhat.com/ja/documentation/red_hat_ceph_storage/4/html/administration_guide/powering-down-and-rebooting-a-red-hat-ceph-storage-cluster_admin#powering-down-and-rebooting-a-red-hat-ceph-storage-cluster_admin
SES 7.1 | Deploying and Administering SUSE Enterprise Storage with Rook | Ceph cluster administration
https://documentation.suse.com/ja-jp/ses/7.1/html/ses-all/admin-caasp-cluster.html
Mirantis Documentation: Shut down a Ceph cluster
https://docs.mirantis.com/mcp/q4-18/mcp-operations-guide/scheduled-maintenance-power-outage/power-off-ceph-cluster.html
こういうの見るだけで「うわめんどくせ……」となってしまう