ceph-ansible/roles/ceph-osd/tasks/zap_devices.yml

---
# NOTE (leseb): some devices might miss partition label which which will result
# in ceph-disk failing to prepare OSD. Thus zapping them prior to prepare the OSD
# ensures that the device will get successfully prepared.
- name: Erasing partitions and labels from OSD disk(s)
  command: ceph-disk zap {{ item }}
  when: zap_devices and (journal_collocation or raw_multi_journal)
  with_items: devices
  changed_when: False

- name: Erasing partitions and labels from the journal device(s)
  command: ceph-disk zap {{ item }}
  when: zap_devices and raw_multi_journal
  with_items: raw_journal_devices
  changed_when: False