gistfile1.txt

collection_group {
  collect_every = 10
  time_threshold = 50
  metric {
    name_match = "dev-(.*)-disk_used"
    value_threshold = 1.0
  }
}

collection_group {
  collect_once = yes
  time_threshold = 20
  metric {
    name = "dev-(.*)-disk_total"
  }
}