diff --git a/install-dsmon.sh b/install-dsmon.sh
index c060907..e7d7172 100755
--- a/install-dsmon.sh
+++ b/install-dsmon.sh
@@ -23,15 +23,23 @@ if [ ! -d "/opt/idssys/settings" ]; then
 	do_with_root mkdir /opt/idssys/settings
 fi
 
-echo -e -n "${idsCL[LightCyan]}What threshold should we set? (Default=90(%)): ${idsCL[Default]}"
+TOTALSPACE=$(df / | grep / | awk '{ print $2}')
+TOTALSPACE=$(bc <<< "scale=2; $TOTALSPACE/1024/1024")
+THRESHOLDSPACE=$(bc <<< "scale=2; $TOTALSPACE*.8")
+
+echo -e "${idsCL[LightCyan]}Root drive size: ${idsCL[LightGreen]}"$TOTALSPACE"GB${idsCL[Default]}"
+echo -e "${idsCL[LightCyan]}Default thresholf of 80%: ${idsCL[LightGreen]}"$THRESHOLDSPACE"GB${idsCL[Default]}"
+
+echo -e -n "${idsCL[LightCyan]}What threshold should we set? Default=80: ${idsCL[Default]}"
 read SET_THRESHOLD
 echo ""
+
 echo -e -n "${idsCL[LightCyan]}Email address to receive alerts: ${idsCL[Default]}"
 read SET_ALERTEMAIL
 echo ""
 
 if [ "${SET_THRESHOLD}" = "" ]; then
-	SET_THRESHOLD=90
+	SET_THRESHOLD=80
 fi
 
 echo -e "${idsCL[Yellow]}Sending test Alert... ${idsCL[Default]}"