diff --git a/reset.sh b/reset.sh
index 97778c6..65093b6 100755
--- a/reset.sh
+++ b/reset.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
 set -e
 
-dd if=/dev/zero of=/dev/vda bs=2048 count=1
-dd if=/dev/zero of=/dev/vdb bs=2048 count=1
+dd if=/dev/zero of=/dev/vda bs=1M count=100
+dd if=/dev/zero of=/dev/vdb bs=1M count=100