diff --git a/src/sunstone/public/app/tabs/templates-tab/form-panels/create/wizard-tabs/general.js b/src/sunstone/public/app/tabs/templates-tab/form-panels/create/wizard-tabs/general.js
index 365b107de2..ea22fcefca 100644
--- a/src/sunstone/public/app/tabs/templates-tab/form-panels/create/wizard-tabs/general.js
+++ b/src/sunstone/public/app/tabs/templates-tab/form-panels/create/wizard-tabs/general.js
@@ -186,10 +186,12 @@ define(function(require) {
         $("#vcenter_template_ref", context).attr("required", "");
         $("#vcenter_instance_id", context).attr("required", "");
         $("#vcenter_ccr_ref", context).attr("required", "");
+        $("#MEMORY", context).attr("pattern", "^([048]|\\d*[13579][26]|\\d*[24680][048])$");
       } else {
         $("#vcenter_template_ref", context).removeAttr("required");
         $("#vcenter_instance_id", context).removeAttr("required");
         $("#vcenter_ccr_ref", context).removeAttr("required");
+        $("#MEMORY", context).removeAttr("pattern");
       }
       // There is another listener in context.js setup
     });
diff --git a/src/sunstone/public/app/tabs/templates-tab/form-panels/create/wizard-tabs/general/capacity-create.js b/src/sunstone/public/app/tabs/templates-tab/form-panels/create/wizard-tabs/general/capacity-create.js
index 7cf30bc9d6..2308034be2 100644
--- a/src/sunstone/public/app/tabs/templates-tab/form-panels/create/wizard-tabs/general/capacity-create.js
+++ b/src/sunstone/public/app/tabs/templates-tab/form-panels/create/wizard-tabs/general/capacity-create.js
@@ -84,6 +84,9 @@ define(function(require) {
   }
 
   function _totalCost(totalCostDisk=0){
+    if(!this.totalCostDisk){
+      this.totalCostDisk = 0;
+    }
     var memory = document.getElementById('real_memory_cost').value;
     var cpu = document.getElementById('real_cpu_cost').value;
     if (totalCostDisk != 0){
diff --git a/src/sunstone/public/app/tabs/templates-tab/form-panels/instantiate.js b/src/sunstone/public/app/tabs/templates-tab/form-panels/instantiate.js
index b59a7663f1..8716a521c2 100644
--- a/src/sunstone/public/app/tabs/templates-tab/form-panels/instantiate.js
+++ b/src/sunstone/public/app/tabs/templates-tab/form-panels/instantiate.js
@@ -493,6 +493,12 @@ define(function(require) {
           CapacityInputs.setup(capacityContext);
           CapacityInputs.fill(capacityContext, template_json.VMTEMPLATE);
 
+          if (template_json.VMTEMPLATE.TEMPLATE.HYPERVISOR == "vcenter"){
+            $(".mb_input input", context).attr("pattern", "^([048]|\\d*[13579][26]|\\d*[24680][048])$");
+          } else {
+            $(".mb_input input", context).removeAttr("pattern");
+          }
+
           var cpuCost    = template_json.VMTEMPLATE.TEMPLATE.CPU_COST;
           var memoryCost = template_json.VMTEMPLATE.TEMPLATE.MEMORY_COST;
           var memoryUnitCost = template_json.VMTEMPLATE.TEMPLATE.MEMORY_UNIT_COST;