diff --git a/config.yaml b/config.yaml
index 3aefdb52..94e017b2 100644
--- a/config.yaml
+++ b/config.yaml
@@ -217,12 +217,16 @@ options:
       at the expense of instance performance.
   ram-allocation-ratio:
     type: float
-    default: 1.5
+    default: 0.98
     description: |
       The physical ram -> virtual ram ratio to use in the Nova scheduler.
       .
       Increasing this value will increase instance density on compute nodes
       at the potential expense of instance performance.
+      .
+      NOTE: When in a hyper-converged architecture, make sure to make enough
+      room for infrastructure services running on your compute hosts by
+      adjusting this value.
   disk-allocation-ratio:
     type: float
     default: 1.0
diff --git a/tests/basic_deployment.py b/tests/basic_deployment.py
index 59d82415..e045872e 100644
--- a/tests/basic_deployment.py
+++ b/tests/basic_deployment.py
@@ -834,7 +834,7 @@ class NovaCCBasicDeployment(OpenStackAmuletDeployment):
             services['apache2'] = conf_file
 
         # Expected default and alternate values
-        flags_default = 'cpu-allocation-ratio=16.0,ram-allocation-ratio=1.5'
+        flags_default = 'cpu-allocation-ratio=16.0,ram-allocation-ratio=0.98'
         flags_alt = 'cpu-allocation-ratio=32.0,ram-allocation-ratio=3.0'
         set_default = {'config-flags': flags_default}
         set_alternate = {'config-flags': flags_alt}