diff --git a/pkg/compute/guestdrivers/ucloud.go b/pkg/compute/guestdrivers/ucloud.go
index f82a4dc3fa..36701dc7fa 100644
--- a/pkg/compute/guestdrivers/ucloud.go
+++ b/pkg/compute/guestdrivers/ucloud.go
@@ -15,6 +15,10 @@
 package guestdrivers
 
 import (
+	"fmt"
+
+	"yunion.io/x/pkg/utils"
+
 	api "yunion.io/x/onecloud/pkg/apis/compute"
 	"yunion.io/x/onecloud/pkg/compute/models"
 )
@@ -74,6 +78,17 @@ func (self *SUCloudGuestDriver) GetGuestInitialStateAfterRebuild() string {
 	return api.VM_RUNNING
 }
 
+func (self *SUCloudGuestDriver) ValidateResizeDisk(guest *models.SGuest, disk *models.SDisk, storage *models.SStorage) error {
+	if !utils.IsInStringArray(guest.Status, []string{api.VM_READY}) {
+		return fmt.Errorf("Cannot resize disk when guest in status %s", guest.Status)
+	}
+	if !utils.IsInStringArray(storage.StorageType, []string{api.STORAGE_UCLOUD_CLOUD_SSD, api.STORAGE_UCLOUD_CLOUD_NORMAL}) {
+		return fmt.Errorf("Cannot resize disk with unsupported volumes type %s", storage.StorageType)
+	}
+
+	return nil
+}
+
 func init() {
 	driver := SUCloudGuestDriver{}
 	models.RegisterGuestDriver(&driver)
diff --git a/pkg/compute/models/elasticips.go b/pkg/compute/models/elasticips.go
index 608dfb7f80..d9eecd29f0 100644
--- a/pkg/compute/models/elasticips.go
+++ b/pkg/compute/models/elasticips.go
@@ -976,6 +976,7 @@ func (manager *SElasticipManager) AllocateEipAndAssociateVM(ctx context.Context,
 	eip.Bandwidth = bw
 	eip.ChargeType = chargeType
 	eip.ProjectId = vm.ProjectId
+	eip.ProjectSrc = string(db.PROJECT_SOURCE_LOCAL)
 	eip.ManagerId = host.ManagerId
 	eip.CloudregionId = region.Id
 	eip.Name = fmt.Sprintf("eip-for-%s", vm.GetName())
diff --git a/pkg/util/ucloud/disk.go b/pkg/util/ucloud/disk.go
index 119ca938a2..84c1f4f5de 100644
--- a/pkg/util/ucloud/disk.go
+++ b/pkg/util/ucloud/disk.go
@@ -226,7 +226,17 @@ func (self *SDisk) CreateISnapshot(ctx context.Context, name string, desc string
 		return nil, err
 	}
 
-	return self.GetISnapshot(snapshot)
+	isnapshot, err := self.GetISnapshot(snapshot)
+	if err != nil {
+		return nil, err
+	}
+
+	err = cloudprovider.WaitStatus(isnapshot, api.SNAPSHOT_READY, time.Second*10, time.Second*300)
+	if err != nil {
+		return nil, err
+	}
+
+	return isnapshot, nil
 }
 
 func (self *SDisk) getSnapshot(snapshotId string) (*SSnapshot, error) {
@@ -329,9 +339,9 @@ func (self *SRegion) GetDisks(zoneId string, diskType string, diskIds []string)
 
 	if len(diskIds) > 0 {
 		filtedDisks := make([]SDisk, 0)
-		for _, disk := range disks {
-			if utils.IsInStringArray(disk.UDiskID, diskIds) {
-				filtedDisks = append(filtedDisks, disk)
+		for i := range disks {
+			if utils.IsInStringArray(disks[i].UDiskID, diskIds) {
+				filtedDisks = append(filtedDisks, disks[i])
 			}
 		}
 
@@ -411,7 +421,7 @@ func (self *SRegion) resetDisk(zoneId, diskId, snapshotId string) error {
 		params.Set("SnapshotId", snapshotId)
 	}
 
-	return self.DoAction("UDisk-RestoreUDisk", params, nil)
+	return self.DoAction("RestoreUDisk", params, nil)
 }
 
 // https://docs.ucloud.cn/api/udisk-api/attach_udisk
@@ -426,6 +436,15 @@ func (self *SRegion) AttachDisk(zoneId string, instanceId string, diskId string)
 
 // https://docs.ucloud.cn/api/udisk-api/detach_udisk
 func (self *SRegion) DetachDisk(zoneId string, instanceId string, diskId string) error {
+	idisks, err := self.GetDisk(diskId)
+	if err != nil {
+		return err
+	}
+
+	if idisks.Status == "Available" {
+		return nil
+	}
+
 	params := NewUcloudParams()
 	params.Set("Zone", zoneId)
 	params.Set("UHostId", instanceId)
diff --git a/pkg/util/ucloud/region.go b/pkg/util/ucloud/region.go
index bbb664c7b8..db927a8225 100644
--- a/pkg/util/ucloud/region.go
+++ b/pkg/util/ucloud/region.go
@@ -247,9 +247,9 @@ func (self *SRegion) GetISnapshots() ([]cloudprovider.ICloudSnapshot, error) {
 	}
 
 	isnapshots := make([]cloudprovider.ICloudSnapshot, 0)
-	for _, snapshot := range snapshots {
-		snapshot.region = self
-		isnapshots = append(isnapshots, &snapshot)
+	for i := range snapshots {
+		snapshots[i].region = self
+		isnapshots = append(isnapshots, &snapshots[i])
 	}
 
 	return isnapshots, nil
diff --git a/pkg/util/ucloud/shell/snapshot.go b/pkg/util/ucloud/shell/snapshot.go
index c5bbc78ae6..53e8d8b3d2 100644
--- a/pkg/util/ucloud/shell/snapshot.go
+++ b/pkg/util/ucloud/shell/snapshot.go
@@ -34,11 +34,12 @@ func init() {
 	})
 
 	type SnapshotDeleteOptions struct {
-		ID string `help:"Snapshot ID"`
+		ID   string `help:"Snapshot ID"`
+		Zone string `help:"Snapshot zone id"`
 	}
 
 	shellutils.R(&SnapshotDeleteOptions{}, "snapshot-delete", "Delete snapshot", func(cli *ucloud.SRegion, args *SnapshotDeleteOptions) error {
-		return cli.DeleteSnapshot(args.ID)
+		return cli.DeleteSnapshot(args.ID, args.Zone)
 	})
 
 	type SnapshotCreateOptions struct {
diff --git a/pkg/util/ucloud/snapshot.go b/pkg/util/ucloud/snapshot.go
index 2651bbb2dc..497b94d82c 100644
--- a/pkg/util/ucloud/snapshot.go
+++ b/pkg/util/ucloud/snapshot.go
@@ -116,7 +116,12 @@ func (self *SSnapshot) GetDiskType() string {
 
 // https://docs.ucloud.cn/api/udisk-api/delete_udisk_snapshot
 func (self *SSnapshot) Delete() error {
-	return self.region.DeleteSnapshot(self.GetId())
+	idisk, err := self.region.GetDisk(self.UDiskID)
+	if err != nil {
+		return err
+	}
+
+	return self.region.DeleteSnapshot(self.GetId(), idisk.Zone)
 }
 
 func (self *SRegion) GetSnapshotById(snapshotId string) (SSnapshot, error) {
@@ -158,9 +163,10 @@ func (self *SRegion) GetSnapshots(diskId string, snapshotId string) ([]SSnapshot
 }
 
 // https://docs.ucloud.cn/api/udisk-api/delete_udisk_snapshot
-func (self *SRegion) DeleteSnapshot(snapshotId string) error {
+func (self *SRegion) DeleteSnapshot(snapshotId string, zoneId string) error {
 	params := NewUcloudParams()
 	params.Set("SnapshotId", snapshotId)
+	params.Set("Zone", zoneId)
 
 	return self.DoAction("DeleteUDiskSnapshot", params, nil)
 }
diff --git a/pkg/util/ucloud/storagecache.go b/pkg/util/ucloud/storagecache.go
index 3a8a3e75fc..8dd639acf2 100644
--- a/pkg/util/ucloud/storagecache.go
+++ b/pkg/util/ucloud/storagecache.go
@@ -288,9 +288,9 @@ func (self *SRegion) GetImageByName(name string) (*SImage, error) {
 		return nil, err
 	}
 
-	for _, image := range images {
-		if image.GetName() == name {
-			return &image, nil
+	for i := range images {
+		if images[i].GetName() == name {
+			return &images[i], nil
 		}
 	}