Bug #2816: monitor_ds may not be reporting the available total storage in some cases

src/im_mad/remotes/common.d/monitor_ds.sh

@@ -12,6 +12,8 @@ if [ $? == 0 ]; then
     LVM_SIZE_CMD="sudo vgdisplay --separator : --units m -o vg_size,vg_free --nosuffix --noheadings -C"
 fi
 
+mkdir -p "$DATASTORE_LOCATION"
+
 USED_MB=$(du -sLm $DATASTORE_LOCATION 2>/dev/null | cut -f1)
 TOTAL_MB=$(df -B1M -P $DATASTORE_LOCATION 2>/dev/null | tail -n 1 | awk '{print $2}')
 FREE_MB=$(df -B1M -P $DATASTORE_LOCATION 2>/dev/null | tail -n 1 | awk '{print $4}')