function get-local-disk-num() {
  local interface="${1}"
  local format="${2}"

  localdisknum=0
  if [[ -n "${NODE_LOCAL_SSDS_EXT:-}" ]]; then
    IFS=";" read -r -a ssdgroups <<< "${NODE_LOCAL_SSDS_EXT:-}"
    for ssdgroup in "${ssdgroups[@]}"; do
      IFS="," read -r -a ssdopts <<< "${ssdgroup}"
      local opnum="${ssdopts[0]}"
      local opinterface="${ssdopts[1]}"
      local opformat="${ssdopts[2]}"

  fi

  local local_ssds=()
  local_ssd_ext_count=0
  if [[ -n "${NODE_LOCAL_SSDS_EXT:-}" ]]; then
    IFS=";" read -r -a ssdgroups <<< "${NODE_LOCAL_SSDS_EXT:-}"
    for ssdgroup in "${ssdgroups[@]}"
    do
      IFS="," read -r -a ssdopts <<< "${ssdgroup}"
      validate-node-local-ssds-ext "${ssdopts[@]}"
      for ((i=1; i<=ssdopts[0]; i++)); do