25.11. Creating shared LVM devices using the storage RHEL system role


You can use the storage RHEL system role to create shared LVM devices if you want your multiple systems to access the same storage at the same time.

This can bring the following notable benefits:

  • Resource sharing
  • Flexibility in managing storage resources
  • Simplification of storage management tasks

Prerequisites

Procedure

  1. Create a playbook file, for example, ~/playbook.yml, with the following content:

    ---
    - name: Manage local storage
      hosts: managed-node-01.example.com
      become: true
      tasks:
        - name: Create shared LVM device
          ansible.builtin.include_role:
            name: redhat.rhel_system_roles.storage
          vars:
            storage_pools:
              - name: vg1
                disks: /dev/vdb
                type: lvm
                shared: true
                state: present
                volumes:
                  - name: lv1
                    size: 4g
                    mount_point: /opt/test1
                    fs_type: gfs2
            storage_safe_mode: false
            storage_use_partitions: true

    For details about all variables used in the playbook, see the /usr/share/ansible/roles/rhel-system-roles.storage/README.md file on the control node.

  2. Validate the playbook syntax:

    $ ansible-playbook --syntax-check ~/playbook.yml

    Note that this command only validates the syntax and does not protect against a wrong but valid configuration.

  3. Run the playbook:

    $ ansible-playbook ~/playbook.yml
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