diff --git a/pkg/compute/models/scaling_policy.go b/pkg/compute/models/scaling_policy.go
index 187f70c87f..e8b4911272 100644
--- a/pkg/compute/models/scaling_policy.go
+++ b/pkg/compute/models/scaling_policy.go
@@ -95,6 +95,13 @@ func (spm *SScalingPolicyManager) ListItemFilter(ctx context.Context, q *sqlchem
 		return q, err
 	}
 	q, err = spm.SScalingGroupResourceBaseManager.ListItemFilter(ctx, q, userCred, input.ScalingGroupFilterListInput)
+	if err != nil {
+		return q, err
+	}
+	q, err = spm.SEnabledResourceBaseManager.ListItemFilter(ctx, q, userCred, input.EnabledResourceBaseListInput)
+	if err != nil {
+		return q, err
+	}
 	if len(input.TriggerType) != 0 {
 		q = q.Equals("trigger_type", input.TriggerType)
 	}
diff --git a/pkg/compute/models/scaling_trigger.go b/pkg/compute/models/scaling_trigger.go
index ffdea7e8c4..e48db67027 100644
--- a/pkg/compute/models/scaling_trigger.go
+++ b/pkg/compute/models/scaling_trigger.go
@@ -276,6 +276,7 @@ func (st *SScalingTimer) CycleTimerDetails() api.ScalingCycleTimerDetails {
 		Hour:      st.Hour,
 		WeekDays:  st.GetWeekDays(),
 		MonthDays: st.GetMonthDays(),
+		StartTime: st.StartTime,
 		EndTime:   st.EndTime,
 		CycleType: st.Type,
 	}
diff --git a/pkg/controller/autoscaling/controller.go b/pkg/controller/autoscaling/controller.go
index 254fba546b..61378bfbe6 100644
--- a/pkg/controller/autoscaling/controller.go
+++ b/pkg/controller/autoscaling/controller.go
@@ -38,6 +38,7 @@ import (
 	"yunion.io/x/onecloud/pkg/mcclient"
 	"yunion.io/x/onecloud/pkg/mcclient/auth"
 	"yunion.io/x/onecloud/pkg/mcclient/modules"
+	"yunion.io/x/onecloud/pkg/util/httputils"
 	"yunion.io/x/onecloud/pkg/util/logclient"
 )
 
@@ -406,10 +407,21 @@ func (asc *SASController) findSuitableInstance(sg *models.SScalingGroup, num int
 
 func (asc *SASController) createInstances(session *mcclient.ClientSession, params jsonutils.JSONObject, count int,
 	failedList []string, succeedList []SInstance) ([]string, []SInstance) {
+	// forcast first
+	dict := params.(*jsonutils.JSONDict)
+	dict.Set("count", jsonutils.NewInt(int64(count)))
+	_, err := modules.SchedManager.DoForecast(session, dict)
+	if err != nil {
+		clientErr := err.(*httputils.JSONClientError)
+		failedList = append(failedList, clientErr.Details)
+	}
+	dict.Remove("count")
+
 	if count == 1 {
 		ret, err := modules.Servers.Create(session, params)
 		if err != nil {
-			failedList = append(failedList, err.Error())
+			clientErr := err.(*httputils.JSONClientError)
+			failedList = append(failedList, clientErr.Details)
 			return failedList, succeedList
 		}
 		id, _ := ret.GetString("id")
diff --git a/pkg/controller/autoscaling/health_check.go b/pkg/controller/autoscaling/health_check.go
index 5235329842..53107901e7 100644
--- a/pkg/controller/autoscaling/health_check.go
+++ b/pkg/controller/autoscaling/health_check.go
@@ -106,7 +106,7 @@ func (asc *SASController) CheckInstanceHealth(ctx context.Context, userCred mccl
 	session := auth.GetSession(ctx, userCred, "", "")
 	for i := range unnormalGuests {
 		ug := unnormalGuests[i]
-		if ug.CreateCompleteTime.Add(time.Duration(scalingGroupMap[ug.Id].HealthCheckGov) * time.Second).After(now) {
+		if ug.CreateCompleteTime.Add(time.Duration(scalingGroupMap[ug.ScalngGroupId].HealthCheckGov) * time.Second).After(now) {
 			continue
 		}
 		if ug.Status == apis.VM_READY {