diff --git a/lib/constants.py b/lib/constants.py
index 2fd54327212d74fb1d5c8e2a2b27265eadfb636f..aa93c653147d3f75b2a3993782d05888649ac4bb 100644
--- a/lib/constants.py
+++ b/lib/constants.py
@@ -918,6 +918,7 @@ BE_MINMEM = "minmem"
 BE_VCPUS = "vcpus"
 BE_AUTO_BALANCE = "auto_balance"
 BE_ALWAYS_FAILOVER = "always_failover"
+BE_SPINDLE_USAGE = "spindle_usage"
 
 BES_PARAMETER_TYPES = {
   BE_MAXMEM: VTYPE_SIZE,
@@ -925,6 +926,7 @@ BES_PARAMETER_TYPES = {
   BE_VCPUS: VTYPE_INT,
   BE_AUTO_BALANCE: VTYPE_BOOL,
   BE_ALWAYS_FAILOVER: VTYPE_BOOL,
+  BE_SPINDLE_USAGE: VTYPE_INT,
   }
 
 BES_PARAMETER_COMPAT = {
@@ -1817,6 +1819,7 @@ BEC_DEFAULTS = {
   BE_VCPUS: 1,
   BE_AUTO_BALANCE: True,
   BE_ALWAYS_FAILOVER: False,
+  BE_SPINDLE_USAGE: 1,
   }
 
 NDC_DEFAULTS = {