diff --git a/071 b/071
index 96deb8bf..4dd9a8a2 100755
--- a/071
+++ b/071
@@ -118,8 +118,8 @@ if [ "$bitsperlong" -eq 32 ]; then
     [ "$USE_LBD_PATCH" = yes ] && upperbound=16
     # limited by page cache index when LBD patch onboard.
 else
-    upperbound=`echo 16 \* 1024 \* 1024 | bc` 
-    # 16 exabytes (working in TBs below)
+    upperbound=`echo 8 \* 1024 \* 1024 | bc` 
+    # 8 exabytes (working in TBs below)
 fi
 
 # Step from (upperbound-1)(Tb) through (upperbound+1(Tb), &