diff --git a/pkg/compute/guestdrivers/aws.go b/pkg/compute/guestdrivers/aws.go
index 0327c586ce..a33db768a0 100644
--- a/pkg/compute/guestdrivers/aws.go
+++ b/pkg/compute/guestdrivers/aws.go
@@ -8,12 +8,13 @@ import (
 
 	"yunion.io/x/jsonutils"
 	"yunion.io/x/log"
+	"yunion.io/x/pkg/utils"
+
 	"yunion.io/x/onecloud/pkg/cloudcommon/db/taskman"
 	"yunion.io/x/onecloud/pkg/cloudprovider"
 	"yunion.io/x/onecloud/pkg/compute/models"
 	"yunion.io/x/onecloud/pkg/mcclient"
 	"yunion.io/x/onecloud/pkg/util/billing"
-	"yunion.io/x/pkg/utils"
 )
 
 type SAwsGuestDriver struct {
diff --git a/pkg/compute/guestdrivers/huawei.go b/pkg/compute/guestdrivers/huawei.go
index 2291da8892..9d011be163 100644
--- a/pkg/compute/guestdrivers/huawei.go
+++ b/pkg/compute/guestdrivers/huawei.go
@@ -7,12 +7,13 @@ import (
 
 	"yunion.io/x/jsonutils"
 	"yunion.io/x/log"
+	"yunion.io/x/pkg/utils"
+
 	"yunion.io/x/onecloud/pkg/cloudcommon/db/taskman"
 	"yunion.io/x/onecloud/pkg/cloudprovider"
 	"yunion.io/x/onecloud/pkg/compute/models"
 	"yunion.io/x/onecloud/pkg/mcclient"
 	"yunion.io/x/onecloud/pkg/util/billing"
-	"yunion.io/x/pkg/utils"
 )
 
 type SHuaweiGuestDriver struct {
diff --git a/pkg/compute/guestdrivers/openstack.go b/pkg/compute/guestdrivers/openstack.go
index bc68a46f1a..5fd3a2189d 100644
--- a/pkg/compute/guestdrivers/openstack.go
+++ b/pkg/compute/guestdrivers/openstack.go
@@ -7,6 +7,8 @@ import (
 
 	"yunion.io/x/jsonutils"
 	"yunion.io/x/log"
+	"yunion.io/x/pkg/util/compare"
+
 	"yunion.io/x/onecloud/pkg/cloudcommon/db/lockman"
 	"yunion.io/x/onecloud/pkg/cloudcommon/db/taskman"
 	"yunion.io/x/onecloud/pkg/cloudprovider"
@@ -15,7 +17,6 @@ import (
 	"yunion.io/x/onecloud/pkg/httperrors"
 	"yunion.io/x/onecloud/pkg/mcclient"
 	"yunion.io/x/onecloud/pkg/util/billing"
-	"yunion.io/x/pkg/util/compare"
 )
 
 type SOpenStackGuestDriver struct {
diff --git a/pkg/compute/models/guestnetworks.go b/pkg/compute/models/guestnetworks.go
index f1932ab389..220f17acad 100644
--- a/pkg/compute/models/guestnetworks.go
+++ b/pkg/compute/models/guestnetworks.go
@@ -247,12 +247,23 @@ func (self *SGuestnetwork) GetTeamGuestnetwork() (*SGuestnetwork, error) {
 	return nil, nil
 }
 
-
-func (self *SGuestnetwork) getJsonDescAtHost(host *SHost) jsonutils.JSONObject {
-	desc := jsonutils.NewDict()
-
+func (self *SGuestnetwork) getJsonDescAtBaremetal(host *SHost) jsonutils.JSONObject {
 	network := self.GetNetwork()
 	hostwire := host.getHostwireOfIdAndMac(network.WireId, self.MacAddr)
+	return self.getGeneralJsonDesc(host, network, hostwire)
+}
+
+func (self *SGuestnetwork) getJsonDescAtHost(host *SHost) jsonutils.JSONObject {
+	network := self.GetNetwork()
+	hostwires := host.getHostwiresOfId(network.WireId)
+	if len(hostwires) > 1 {
+		log.Warningf("host attach to wire multiple times: %d", len(hostwires))
+	}
+	return self.getGeneralJsonDesc(host, network, &hostwires[0])
+}
+
+func (self *SGuestnetwork) getGeneralJsonDesc(host *SHost, network *SNetwork, hostwire *SHostwire) jsonutils.JSONObject {
+	desc := jsonutils.NewDict()
 
 	desc.Add(jsonutils.NewString(network.Name), "net")
 	desc.Add(jsonutils.NewString(self.NetworkId), "net_id")
diff --git a/pkg/compute/models/hosts.go b/pkg/compute/models/hosts.go
index 6fb8e7dcc8..ccd1ec1cf6 100644
--- a/pkg/compute/models/hosts.go
+++ b/pkg/compute/models/hosts.go
@@ -1101,9 +1101,7 @@ func (self *SHost) getHostwireOfIdAndMac(wireId string, mac string) *SHostwire {
 	hostwire.SetModelManager(HostwireManager)
 
 	q := self.GetWiresQuery().Equals("wire_id", wireId)
-	if q.Count() > 1 {
-		q = q.Equals("mac_addr", mac)
-	}
+	q = q.Equals("mac_addr", mac)
 	err := q.First(&hostwire)
 	if err != nil {
 		log.Errorf("getHostwireOfIdAndMac fail %s", err)
diff --git a/pkg/compute/models/netinterfaces.go b/pkg/compute/models/netinterfaces.go
index 42518a8e04..fdbd53cbaa 100644
--- a/pkg/compute/models/netinterfaces.go
+++ b/pkg/compute/models/netinterfaces.go
@@ -8,7 +8,7 @@ import (
 	"yunion.io/x/log"
 	"yunion.io/x/onecloud/pkg/cloudcommon/db"
 	"yunion.io/x/onecloud/pkg/mcclient"
-	"github.com/yunionio/pkg/util/regutils"
+	"yunion.io/x/pkg/util/regutils"
 )
 
 type SNetInterface struct {
@@ -173,7 +173,7 @@ func (self *SNetInterface) getServerJsonDesc() *jsonutils.JSONDict {
 	desc := jsonutils.Marshal(self).(*jsonutils.JSONDict)
 	gn := self.getServernetwork()
 	if gn != nil {
-		desc.Update(gn.getJsonDescAtHost(self.GetBaremetal()))
+		desc.Update(gn.getJsonDescAtBaremetal(self.GetBaremetal()))
 	}
 	return desc
 }
diff --git a/pkg/compute/models/networks.go b/pkg/compute/models/networks.go
index ff0f552204..32e4ad1ac3 100644
--- a/pkg/compute/models/networks.go
+++ b/pkg/compute/models/networks.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"database/sql"
 	"fmt"
+	"strconv"
 	"strings"
 	"time"
 
@@ -17,7 +18,6 @@ import (
 	"yunion.io/x/pkg/utils"
 	"yunion.io/x/sqlchemy"
 
-	"strconv"
 	"yunion.io/x/onecloud/pkg/cloudcommon/db"
 	"yunion.io/x/onecloud/pkg/cloudcommon/db/lockman"
 	"yunion.io/x/onecloud/pkg/cloudcommon/db/taskman"
@@ -1474,8 +1474,8 @@ func (manager *SNetworkManager) ListItemFilter(ctx context.Context, q *sqlchemy.
 		vpcs := VpcManager.Query().SubQuery()
 		sq := wires.Query(wires.Field("id")).
 			Join(vpcs, sqlchemy.AND(
-			sqlchemy.Equals(vpcs.Field("cloudregion_id"), region.GetId()),
-			sqlchemy.Equals(wires.Field("vpc_id"), vpcs.Field("id"))))
+				sqlchemy.Equals(vpcs.Field("cloudregion_id"), region.GetId()),
+				sqlchemy.Equals(wires.Field("vpc_id"), vpcs.Field("id"))))
 		q = q.Filter(sqlchemy.In(q.Field("wire_id"), sq.SubQuery()))
 	}
 
diff --git a/pkg/compute/options/options.go b/pkg/compute/options/options.go
index c0121e7033..86014296e3 100644
--- a/pkg/compute/options/options.go
+++ b/pkg/compute/options/options.go
@@ -20,7 +20,7 @@ type ComputeOptions struct {
 	DefaultSecurityRules      string `help:"Default security rules" default:"allow any"`
 	DefaultAdminSecurityRules string `help:"Default admin security rules" default:""`
 
-	DefaultDiskSizeMB int `default:"10240" help:"Default disk size in MB if not specified, default to 30GiB" json:"default_disk_size"`
+	DefaultDiskSizeMB int `default:"10240" help:"Default disk size in MB if not specified, default to 10GiB" json:"default_disk_size"`
 
 	pending_delete.SPendingDeleteOptions
 
diff --git a/pkg/compute/storagedrivers/doc.go b/pkg/compute/storagedrivers/doc.go
new file mode 100644
index 0000000000..a8e4491249
--- /dev/null
+++ b/pkg/compute/storagedrivers/doc.go
@@ -0,0 +1 @@
+package storagedrivers // import "yunion.io/x/onecloud/pkg/compute/storagedrivers"
diff --git a/pkg/util/netutils2/macutils.go b/pkg/util/netutils2/macutils.go
index 6f5e0a9ce8..32edbe8ea8 100644
--- a/pkg/util/netutils2/macutils.go
+++ b/pkg/util/netutils2/macutils.go
@@ -36,7 +36,7 @@ func ParseMac(macStr string) (SMacAddr, error) {
 func (mac SMacAddr) Add(step int) SMacAddr {
 	mac2 := SMacAddr{}
 	leftOver := step
-	for i := 5; i >= 2; i -= 1 { // skip first 2 vendor bytes
+	for i := 5; i >= 0; i -= 1 { // skip first 2 vendor bytes
 		newByte := int(mac[i]) + leftOver
 		res := 0
 		if newByte < 0 {