diff --git a/cmd/climc/shell/hosts.go b/cmd/climc/shell/hosts.go
index 5644f29465..54a1133c7e 100644
--- a/cmd/climc/shell/hosts.go
+++ b/cmd/climc/shell/hosts.go
@@ -26,6 +26,7 @@ func init() {
 		AnyMac    string `help:"Mac matches one of the host's interface"`
 
 		Manager string `help:"Show regions belongs to the cloud provider"`
+		Usable  bool   `help:"List all zones that is usable"`
 
 		options.BaseListOptions
 	}
@@ -68,6 +69,10 @@ func init() {
 			params.Add(jsonutils.NewString(args.Manager), "manager")
 		}
 
+		if args.Usable {
+			params.Add(jsonutils.JSONTrue, "usable")
+		}
+
 		if args.Empty {
 			params.Add(jsonutils.JSONTrue, "is_empty")
 		} else if args.Occupied {
diff --git a/pkg/compute/models/hosts.go b/pkg/compute/models/hosts.go
index 80c153b325..aa767108dd 100644
--- a/pkg/compute/models/hosts.go
+++ b/pkg/compute/models/hosts.go
@@ -149,7 +149,7 @@ func (manager *SHostManager) ListItemFilter(ctx context.Context, q *sqlchemy.SQu
 			q = q.Equals("access_mac", anyMac)
 		}
 	}
-	var scopeQuery *sqlchemy.SSubQuery
+	// var scopeQuery *sqlchemy.SSubQuery
 
 	schedTagStr := jsonutils.GetAnyString(query, []string{"schedtag", "schedtag_id"})
 	if len(schedTagStr) > 0 {
@@ -158,7 +158,8 @@ func (manager *SHostManager) ListItemFilter(ctx context.Context, q *sqlchemy.SQu
 			return nil, httperrors.NewResourceNotFoundError("Schedtag %s not found", schedTagStr)
 		}
 		hostschedtags := HostschedtagManager.Query().SubQuery()
-		scopeQuery = hostschedtags.Query(hostschedtags.Field("host_id")).Equals("schedtag_id", schedTag.GetId()).SubQuery()
+		scopeQuery := hostschedtags.Query(hostschedtags.Field("host_id")).Equals("schedtag_id", schedTag.GetId()).SubQuery()
+		q = q.In("id", scopeQuery)
 	}
 
 	wireStr := jsonutils.GetAnyString(query, []string{"wire", "wire_id"})
@@ -168,7 +169,8 @@ func (manager *SHostManager) ListItemFilter(ctx context.Context, q *sqlchemy.SQu
 			return nil, httperrors.NewResourceNotFoundError("Wire %s not found", wireStr)
 		}
 		hostwires := HostwireManager.Query().SubQuery()
-		scopeQuery = hostwires.Query(hostwires.Field("host_id")).Equals("wire_id", wire.GetId()).SubQuery()
+		scopeQuery := hostwires.Query(hostwires.Field("host_id")).Equals("wire_id", wire.GetId()).SubQuery()
+		q = q.In("id", scopeQuery)
 	}
 
 	storageStr := jsonutils.GetAnyString(query, []string{"storage", "storage_id"})
@@ -178,7 +180,8 @@ func (manager *SHostManager) ListItemFilter(ctx context.Context, q *sqlchemy.SQu
 			return nil, httperrors.NewResourceNotFoundError("Storage %s not found", storageStr)
 		}
 		hoststorages := HoststorageManager.Query().SubQuery()
-		scopeQuery = hoststorages.Query(hoststorages.Field("host_id")).Equals("storage_id", storage.GetId()).SubQuery()
+		scopeQuery := hoststorages.Query(hoststorages.Field("host_id")).Equals("storage_id", storage.GetId()).SubQuery()
+		q = q.In("id", scopeQuery)
 	}
 
 	zoneStr := jsonutils.GetAnyString(query, []string{"zone", "zone_id"})
@@ -202,9 +205,18 @@ func (manager *SHostManager) ListItemFilter(ctx context.Context, q *sqlchemy.SQu
 		q = q.Filter(sqlchemy.Equals(q.Field("manager_id"), provider.GetId()))
 	}
 
-	if scopeQuery != nil {
-		q = q.In("id", scopeQuery)
+	usable := jsonutils.QueryBoolean(query, "usable", false)
+	if usable {
+		hostwires := HostwireManager.Query().SubQuery()
+		networks := NetworkManager.Query().SubQuery()
+
+		hostQ := hostwires.Query(sqlchemy.DISTINCT("host_id", hostwires.Field("host_id")))
+		hostQ = hostQ.Join(networks, sqlchemy.Equals(hostwires.Field("wire_id"), networks.Field("wire_id")))
+		hostQ = hostQ.Filter(sqlchemy.Equals(networks.Field("status"), NETWORK_STATUS_AVAILABLE))
+
+		q = q.In("id", hostQ.SubQuery())
 	}
+
 	return q, nil
 }
 
@@ -1632,6 +1644,7 @@ func (self *SHost) getMoreDetails(extra *jsonutils.JSONDict) *jsonutils.JSONDict
 		memCommitRate = float64(usage.GuestVmemSize) * 1.0 / float64(totalMem)
 	}
 	extra.Add(jsonutils.NewFloat(memCommitRate), "mem_commit_rate")
+	extra = self.SManagedResourceBase.getExtraDetails(extra)
 	return extra
 }
 
diff --git a/pkg/compute/models/managedresource.go b/pkg/compute/models/managedresource.go
index b6883e10a4..e44a9041e3 100644
--- a/pkg/compute/models/managedresource.go
+++ b/pkg/compute/models/managedresource.go
@@ -3,6 +3,7 @@ package models
 import (
 	"fmt"
 
+	"yunion.io/x/jsonutils"
 	"yunion.io/x/onecloud/pkg/cloudprovider"
 )
 
@@ -28,3 +29,11 @@ func (self *SManagedResourceBase) GetDriver() (cloudprovider.ICloudProvider, err
 func (self *SManagedResourceBase) IsManaged() bool {
 	return len(self.ManagerId) > 0
 }
+
+func (self *SManagedResourceBase) getExtraDetails(extra *jsonutils.JSONDict) *jsonutils.JSONDict {
+	manager := self.GetCloudprovider()
+	if manager != nil {
+		extra.Add(jsonutils.NewString(manager.Name), "manager")
+	}
+	return extra
+}