Help

Typing --help with any combination of commands will provide a help screen with the optional commands/arguments for that command.

For example:

vpg create --help
Usage: nvmesh  vpg create [OPTIONS]

  Create VPGs.

  usage example: -n v11 --raid-level ec -c 100000000000 --data-blocks 2
  --parity-blocks 1 --protection-level full --stripe-width 1

Options:
  -n, --name TEXT                 Name of the volume. The name must be unique,
                                  as it will become the ID of the volume.
                                  [required]
  -rl, --raid-level [lvm|ec|0|1|10]
                                  The RAID level of the volume. Options: lvm =
                                  Concatenated, ec = Erasure Coding, 0 =
                                  Striped RAID-0, 1 = Mirrored RAID-1, 10 =
                                  Striped & Mirrored RAID-10.  [required]
  -c, --capacity INTEGER          Space in bytes to allocate for the volume.
  -d, --description TEXT          Description of the volume.
  --domain TEXT                   Domain to use.
  -dc, --drive-classes TEXT       Limit volume allocation to specific drive
                                  classes.
  -tc, --target-classes TEXT      Limit volume allocation to specific target
                                  classes.
  --stripe-width INTEGER          Number of disks to use. Required if RAID
                                  Level is 0 or 10.
  --data-blocks INTEGER RANGE     Number of disks to use. Required if RAID
                                  Level is ec.
  --parity-blocks INTEGER RANGE   Number of disks to use. Required if RAID
                                  Level is ec.
  --protection-level [full|minimal|ignore]
                                  Protection level to use. Required if RAID
                                  Level is ec. Options: full = Full
                                  Separation, minimal = Minimal Separation,
                                  ignore = Ignore Separation.
  --help                          Show this message and exit.