direction: left

pool: "Storage Pool\n(conteneur : répertoire, LVM, ZFS, iSCSI…)" {
  grid-columns: 3
  v1: "Volume 1\nvm1.qcow2"
  v2: "Volume 2\nvm2.qcow2"
  v3: "Volume 3\ndata.raw"
}

cmdpool: "pool-list / pool-info" { class: muted }
cmdvol: "vol-list / vol-info" { class: muted }

cmdpool -> pool { class: indirect }
cmdvol -> pool.v3 { class: indirect }