usage: ceph-volume [-h] [--cluster CLUSTER] [--log-level {debug,info,warning,error,critical}]
                   [--log-path LOG_PATH]

ceph-volume: Deploy Ceph OSDs using different device technologies like lvm or
physical disks.

Log Path: /var/log/ceph
Ceph Conf: Unable to load expected Ceph config at: /etc/ceph/ceph.conf

Available subcommands:

lvm                      Use LVM and LVM-based technologies to deploy OSDs
simple                   Manage already deployed OSDs with ceph-volume
raw                      Manage single-device OSDs on raw block devices
inventory                Get this nodes available disk inventory
activate                 Activate an OSD
drive-group
    Deploy OSDs according to a drive groups specification.

    The DriveGroup specification must be passed in json.
    It can either be (preference in this order)
      - in a file, path passed as a positional argument
      - read from stdin, pass "-" as a positional argument
      - a json string passed via the --spec argument

    Either the path postional argument or --spec must be specifed.




options:
  -h, --help            show this help message and exit
  --cluster CLUSTER     Cluster name (defaults to "ceph")
  --log-level {debug,info,warning,error,critical}
                        Change the file log level (defaults to debug)
  --log-path LOG_PATH   Change the log path (defaults to /var/log/ceph)