---
- name: Undoing the exam changes
  hosts: nodes
  tasks:
    - block:
        - name: Remove filesystem
          filesystem:
              device: /dev/mapper/research-data
              fstype: ext4
              state: absent

        - name: removing LVM
          lvol:
            lv: data
            vg: research
            state: absent
            force: true

        - name: Removing vg and pv
          lvg:
            vg: research
            pvs: /dev/sdb1
            state: absent

        - name: Removing the partition
          parted:
            device: /dev/sdb1
            number: 1
            state: absent

        - name: Reverting back to normal state
          command: "wipefs -af /dev/sdb"
...