diff --git a/pkg/hostman/guestfs/localfs.go b/pkg/hostman/guestfs/localfs.go
index 111fa8b0e1..7e8542f184 100644
--- a/pkg/hostman/guestfs/localfs.go
+++ b/pkg/hostman/guestfs/localfs.go
@@ -102,7 +102,6 @@ func (f *SLocalGuestFS) Cleandir(dir string, keepdir, caseInsensitive bool) erro
 	return fmt.Errorf("No such file %s", sPath)
 }
 
-// TODO
 func (f *SLocalGuestFS) Zerofiles(dir string, caseInsensitive bool) error {
 	sPath := f.getLocalPath(dir, caseInsensitive)
 	if len(sPath) > 0 {
diff --git a/pkg/hostman/guestman/guestman.go b/pkg/hostman/guestman/guestman.go
index 62e5decfba..2c7503121a 100644
--- a/pkg/hostman/guestman/guestman.go
+++ b/pkg/hostman/guestman/guestman.go
@@ -4,7 +4,6 @@ import (
 	"context"
 	"fmt"
 	"io/ioutil"
-	"net/url"
 	"os"
 	"os/exec"
 	"path"
@@ -20,6 +19,7 @@ import (
 	"yunion.io/x/onecloud/pkg/cloudcommon/sshkeys"
 	"yunion.io/x/onecloud/pkg/hostman/guestfs"
 	"yunion.io/x/onecloud/pkg/hostman/hostutils"
+	"yunion.io/x/onecloud/pkg/hostman/options"
 	"yunion.io/x/onecloud/pkg/hostman/storageman"
 	"yunion.io/x/onecloud/pkg/httperrors"
 	"yunion.io/x/onecloud/pkg/mcclient/modules"
@@ -32,6 +32,7 @@ import (
 const VNC_PORT_BASE = 5900
 
 type SGuestManager struct {
+	host             hostutils.IHost
 	ServersPath      string
 	Servers          map[string]*SKVMGuestInstance
 	CandidateServers map[string]*SKVMGuestInstance
@@ -40,8 +41,9 @@ type SGuestManager struct {
 	isLoaded bool
 }
 
-func NewGuestManager(serversPath string) *SGuestManager {
+func NewGuestManager(host hostutils.IHost, serversPath string) *SGuestManager {
 	manager := &SGuestManager{}
+	manager.host = host
 	manager.ServersPath = serversPath
 	manager.Servers = make(map[string]*SKVMGuestInstance, 0)
 	manager.CandidateServers = make(map[string]*SKVMGuestInstance, 0)
@@ -66,14 +68,13 @@ func (m *SGuestManager) Bootstrap() {
 }
 
 func (m *SGuestManager) VerifyExistingGuests(pendingDelete bool) {
-	params := url.Values{
-		"limit":          {"0"},
-		"admin":          {"True"},
-		"system":         {"True"},
-		"pending_delete": {fmt.Sprintf("%s", pendingDelete)},
-	}
-	// TODO get host id
-	params.Set("filter.0", fmt.Sprintf("host_id.equals(%s)", "get host id "))
+	params := jsonutils.NewDict()
+	params.Set("limit", jsonutils.NewInt(0))
+	params.Set("admin", jsonutils.JSONTrue)
+	params.Set("system", jsonutils.JSONTrue)
+	params.Set("pending_delete", jsonutils.NewBool(pendingDelete))
+	params.Set("filter.0", jsonutils.NewString(
+		fmt.Sprintf("host_id.equals(%s)", m.host.GetHostId())))
 	if len(m.CandidateServers) > 0 {
 		keys := make([]string, len(m.CandidateServers))
 		var index = 0
@@ -81,9 +82,9 @@ func (m *SGuestManager) VerifyExistingGuests(pendingDelete bool) {
 			keys[index] = k
 			index++
 		}
-		params.Set("filter.1", strings.Join(keys, ","))
+		params.Set("filter.1", jsonutils.NewString(strings.Join(keys, ",")))
 	}
-	res, err := modules.Servers.List(hostutils.GetComputeSession(context.Background()), id, params)
+	res, err := modules.Servers.List(hostutils.GetComputeSession(context.Background()), params)
 	if err != nil {
 		m.OnVerifyExistingGuestsFail(err, pendingDelete)
 	} else {
@@ -130,7 +131,19 @@ func (m *SGuestManager) RemoveCandidateServer(server *SKVMGuestInstance) {
 }
 
 func (m *SGuestManager) OnLoadExistingGuestsComplete() {
+	log.Infof("Load existing guests complete...")
+	err := m.host.PutHostOnline()
+	if err != nil {
+		log.Errorln(err)
+	}
+
 	// TODO
+	// hostmetrics.Init()
+
+	if !options.HostOptions.EnableCpuBinding {
+		// TODO
+		// m.cleanupCpuset()
+	}
 }
 
 func (m *SGuestManager) StartCpusetBalancer() {
@@ -316,7 +329,7 @@ func (m *SGuestManager) GuestStart(ctx context.Context, sid string, body jsonuti
 			if err := guest.StartGuest(ctx, params); err != nil {
 				return nil, httperrors.NewBadRequestError("Failed to start server")
 			} else {
-				return jsonutils.NewDict(jsonutils.JSONPair{"vnc_port", jsonutils.NewInt(0)}), nil
+				return jsonutils.NewDict(jsonutils.NewPair("vnc_port", jsonutils.NewInt(0))), nil
 			}
 		} else {
 			vncPort := guest.GetVncPort()
@@ -555,7 +568,8 @@ func (m *SGuestManager) DeleteSnapshot(ctx context.Context, params interface{})
 		return guest.ExecDeleteSnapshotTask(ctx, delParams.Disk, delParams.DeleteSnapshot,
 			delParams.ConvertSnapshot, delParams.PendingDelete)
 	} else {
-		return nil, delParams.Disk.DeleteSnapshot(delParams.DeleteSnapshot)
+		return jsonutils.NewDict(jsonutils.NewPair("deleted", jsonutils.JSONTrue)),
+			delParams.Disk.DeleteSnapshot(delParams.DeleteSnapshot)
 	}
 }
 
@@ -577,9 +591,9 @@ func Stop() {
 	guestManger.ExitGuestCleanup()
 }
 
-func Init(serversPath string) {
+func Init(host hostutils.IHost, serversPath string) {
 	if guestManger == nil {
-		guestManger = NewGuestManager(serversPath)
+		guestManger = NewGuestManager(host, serversPath)
 	}
 }
 
diff --git a/pkg/hostman/guestman/guesttasks.go b/pkg/hostman/guestman/guesttasks.go
index 32a69e54d9..483b0de9c8 100644
--- a/pkg/hostman/guestman/guesttasks.go
+++ b/pkg/hostman/guestman/guesttasks.go
@@ -716,9 +716,7 @@ func (s *SGuestReloadDiskTask) onResumeSucc(results string) {
 
 func (s *SGuestReloadDiskTask) taskFailed(reason string) {
 	log.Errorf("SGuestReloadDiskTask error: %s", reason)
-	if _, err := hostutils.TaskFailed(s.ctx, reason); err != nil {
-		log.Errorln(err)
-	}
+	hostutils.TaskFailed(s.ctx, reason)
 }
 
 /**
@@ -764,10 +762,7 @@ func (s *SGuestDiskSnapshotTask) onSnapshotBlkdevFail(string) {
 	if err != nil {
 		log.Errorln(err)
 	}
-	_, err = hostutils.TaskFailed(s.ctx, "Reload blkdev error")
-	if err != nil {
-		log.Errorln(err)
-	}
+	hostutils.TaskFailed(s.ctx, "Reload blkdev error")
 }
 
 func (s *SGuestDiskSnapshotTask) onResumeSucc(res string) {
@@ -775,7 +770,7 @@ func (s *SGuestDiskSnapshotTask) onResumeSucc(res string) {
 	snapshotDir := s.disk.GetSnapshotDir()
 	snapshotLocation := path.Join(snapshotDir, s.snapshotId)
 	_, err := hostutils.TaskComplete(s.ctx, jsonutils.NewDict(
-		jsonutils.JSONPair{"localtion", jsonutils.NewString(snapshotLocation)}))
+		jsonutils.NewPair("localtion", jsonutils.NewString(snapshotLocation))))
 	if err != nil {
 		log.Errorln(err)
 	}
@@ -882,7 +877,7 @@ func (s *SGuestSnapshotDeleteTask) onResumeSucc(res string) {
 		exec.Command("rm", "-f", path.Join(snapshotDir, s.deleteSnapshot))
 	}
 	_, err := hostutils.TaskComplete(s.ctx,
-		jsonutils.NewDict(jsonutils.JSONPair{"localtion", jsonutils.JSONTrue}))
+		jsonutils.NewDict(jsonutils.NewPair("deleted", jsonutils.JSONTrue)))
 	if err != nil {
 		log.Errorln(err)
 	}
diff --git a/pkg/hostman/guestman/qemu-kvm.go b/pkg/hostman/guestman/qemu-kvm.go
index d9da4c14d0..6e4891df0c 100644
--- a/pkg/hostman/guestman/qemu-kvm.go
+++ b/pkg/hostman/guestman/qemu-kvm.go
@@ -311,6 +311,10 @@ func (s *SKVMGuestInstance) StartMonitor(ctx context.Context) {
 }
 
 func (s *SKVMGuestInstance) delayStartMonitor(ctx context.Context) {
+	if s.GetQmpMonitorPort(-1) > 0 {
+		// TODO enable hmp?
+	}
+
 	if options.HostOptions.EnableQmpMonitor && s.GetQmpMonitorPort(-1) > 0 {
 		s.Monitor = monitor.NewQmpMonitor(
 			s.onMonitorDisConnect,
@@ -333,8 +337,7 @@ func (s *SKVMGuestInstance) onGetQemuVersion(ctx context.Context, version string
 	log.Infof("Guest(%s) qemu version %s", s.Id, s.QemuVersion)
 	if s.Desc.Contains("live_migrate_dest_port") && ctx != nil {
 		migratePort, _ := s.Desc.Get("live_migrate_dest_port")
-		body := jsonutils.NewDict(
-			jsonutils.JSONPair{"live_migrate_dest_port", migratePort})
+		body := jsonutils.NewDict(jsonutils.NewPair("live_migrate_dest_port", migratePort))
 		hostutils.TaskComplete(ctx, body)
 	} else if jsonutils.QueryBoolean(s.Desc, "is_slave", false) {
 		// TODO
@@ -375,6 +378,17 @@ func (s *SKVMGuestInstance) onMonitorTimeout(ctx context.Context, err error) {
 		func() { s.asyncScriptStart(ctx, jsonutils.NewDict()) })
 }
 
+func (s *SKVMGuestInstance) GetHmpMonitorPort(vncPort int) int {
+	if vncPort <= 0 {
+		vncPort = s.GetVncPort()
+	}
+	if vncPort > 0 {
+		return vncPort + MONITOR_PORT_BASE
+	} else {
+		return -1
+	}
+}
+
 func (s *SKVMGuestInstance) GetQmpMonitorPort(vncPort int) int {
 	if vncPort <= 0 {
 		vncPort = s.GetVncPort()
@@ -518,7 +532,6 @@ func (s *SKVMGuestInstance) delTmpDisks(ctx context.Context, migrated bool) {
 	for _, disk := range disks {
 		if disk.Contains("path") {
 			diskPath, _ := disk.GetString("path")
-			// TODO GetDisksByPath, storagetypes, deleteallsnapshot, delete
 			d := storageman.GetManager().GetDiskByPath(diskPath)
 			if d != nil && d.GetType == storagetypes.STORAGE_LOCAL && migrated {
 				if err := d.DeleteAllSnapshot(); err != nil {
@@ -1008,5 +1021,5 @@ func (s *SKVMGuestInstance) deleteStaticSnapshotFile(
 		log.Errorln(err)
 		return nil, err
 	}
-	return jsonutils.NewDict(jsonutils.JSONPair{"localtion", jsonutils.JSONTrue}), nil
+	return jsonutils.NewDict(jsonutils.JSONPair{"deleted", jsonutils.JSONTrue}), nil
 }
diff --git a/pkg/hostman/guestman/qemu-kvmhelper.go b/pkg/hostman/guestman/qemu-kvmhelper.go
index 29b5c2af37..13ccc86146 100644
--- a/pkg/hostman/guestman/qemu-kvmhelper.go
+++ b/pkg/hostman/guestman/qemu-kvmhelper.go
@@ -346,7 +346,7 @@ func (s *SKVMGuestInstance) generateStartScript(data *jsonutils.JSONDict) string
 	cmd += fmt.Sprintf(" -cpu %s", cpu_type)
 
 	// TODO hmp - -
-	// cmd += s.getMonitorDesc("hmqmon", s.GetQmpMonitorPort(int(vncPort)), MODE_READLINE)
+	cmd += s.getMonitorDesc("hmqmon", s.GetQmpMonitorPort(int(vncPort)), MODE_READLINE)
 	if options.HostOptions.EnableQmpMonitor {
 		cmd += s.getMonitorDesc("qmqmon", s.GetQmpMonitorPort(int(vncPort)), MODE_CONTROL)
 	}
diff --git a/pkg/hostman/hostinfo/hostinfo.go b/pkg/hostman/hostinfo/hostinfo.go
index 63162421fd..3c59ab8f40 100644
--- a/pkg/hostman/hostinfo/hostinfo.go
+++ b/pkg/hostman/hostinfo/hostinfo.go
@@ -41,8 +41,9 @@ var (
 )
 
 type SHostInfo struct {
-	isRegistered bool
-	IsRegistered chan struct{}
+	isRegistered     bool
+	IsRegistered     chan struct{}
+	registerCallback func()
 
 	kvmModuleSupport string
 	nestStatus       string
@@ -644,7 +645,8 @@ func (h *SHostInfo) GetMatchNic(bridge, iface, mac string) *SNIC {
 	return nil
 }
 
-func (h *SHostInfo) StartRegister(delay int) {
+func (h *SHostInfo) StartRegister(delay int, callback func()) {
+	h.registerCallback = callback
 	timeutils2.AddTimeout(delay*time.Second, h.register)
 }
 
@@ -853,6 +855,13 @@ func (h *SHostInfo) putHostOffline() {
 	}
 }
 
+func (h *SHostInfo) PutHostOnline() error {
+	_, err := modules.Hosts.PerformAction(
+		hostutils.GetComputeSession(context.Background()),
+		h.HostId, "online", nil)
+	return err
+}
+
 func (h *SHostInfo) getNetworkInfo() {
 	params := jsonutils.NewDict()
 	params.Set("details", jsonutils.JSONTrue)
@@ -1103,6 +1112,10 @@ func (h *SHostInfo) onSucc() {
 		// TODO
 		h.StartPinger()
 
+		if h.registerCallback != nil {
+			h.registerCallback()
+		}
+
 		// To notify caller, host register is success
 		close(h.IsRegistered)
 	}
diff --git a/pkg/hostman/hostutils/hostutils.go b/pkg/hostman/hostutils/hostutils.go
index e0d8d3a4ea..8946c153a9 100644
--- a/pkg/hostman/hostutils/hostutils.go
+++ b/pkg/hostman/hostutils/hostutils.go
@@ -18,6 +18,14 @@ import (
 	"yunion.io/x/onecloud/pkg/mcclient/modules"
 )
 
+type IHost interface {
+	GetZone() string
+	GetHostId() string
+	GetMediumType() string
+
+	PutHostOnline() error
+}
+
 func GetComputeSession(ctx context.Context) *mcclient.ClientSession {
 	return auth.GetAdminSession(ctx, options.HostOptions.Region, "v2")
 }
diff --git a/pkg/hostman/options/options.go b/pkg/hostman/options/options.go
index 8f6bb9da95..4462bb2d94 100644
--- a/pkg/hostman/options/options.go
+++ b/pkg/hostman/options/options.go
@@ -71,6 +71,8 @@ type SHostOptions struct {
 	DefaultWriteBpsPerCpu  int  `default:"54525952" help:"Default write bps per cpu for hard IO limit"`
 	DefaultWriteIopsPerCpu int  `default:"416" help:"Default write iops per cpu for hard IO limit"`
 	SetVncPassword         bool `default:"true" help:"Auto set vnc password after monitor connected"`
+
+	EnableCpuBinding bool `default:"true" help:"Enable cpu binding and rebalance"`
 }
 
 var HostOptions SHostOptions
diff --git a/pkg/hostman/service/host_services.go b/pkg/hostman/service/host_services.go
index f87b16dc42..9a251af0e2 100644
--- a/pkg/hostman/service/host_services.go
+++ b/pkg/hostman/service/host_services.go
@@ -32,23 +32,19 @@ func (host *SHostService) StartService() {
 		log.Fatalf(err)
 	}
 
-	if err := storageman.Init(hostInstance.HostId, hostInstance.Zone); err != nil {
+	if err := storageman.Init(hostInstance); err != nil {
 		log.Fatalf(err)
 	}
-	// wait host registerd
 
-	// Firewall.Init()
+	guestman.Init(hostInstance, options.HostOptions.ServersPath)
 
 	var c = make(chan struct{})
 	cloudcommon.InitAuth(&options.HostOptions.Options, func() {
 		log.Infof("Auth complete!!")
 
-		hostinfo.Instance().StartRegister()
+		hostInstance.StartRegister(5, guestman.GetGuestManager().Bootstrap)
 		<-hostinfo.Instance().IsRegistered
 
-		guestman.Init(options.HostOptions.ServersPath)
-		guestman.GetGuestManager().Bootstrap()
-
 		close(c)
 	})
 
diff --git a/pkg/hostman/storageman/core.go b/pkg/hostman/storageman/core.go
index 186628b3b4..b3351620f9 100644
--- a/pkg/hostman/storageman/core.go
+++ b/pkg/hostman/storageman/core.go
@@ -7,20 +7,14 @@ import (
 	"strings"
 
 	"yunion.io/x/onecloud/pkg/cloudcommon/storagetypes"
+	"yunion.io/x/onecloud/pkg/hostman/hostutils"
 	"yunion.io/x/onecloud/pkg/hostman/options"
 )
 
 const MINIMAL_FREE_SPACE = 128
 
-type IHost interface {
-	GetZone() string
-	GetHostId() string
-
-	GetMediumType() string
-}
-
 type SStorageManager struct {
-	host IHost
+	host hostutils.IHost
 
 	Storages     []IStorage
 	AgentStorage IStorage
@@ -32,7 +26,7 @@ type SStorageManager struct {
 	NfsStorageImagecacheManagers map[string]IImageCacheManger
 }
 
-func NewStorageManager(host IHost) (*SStorageManager, error) {
+func NewStorageManager(host hostutils.IHost) (*SStorageManager, error) {
 	var (
 		ret = &SStorageManager{
 			host:     host,
@@ -276,7 +270,7 @@ func Manager() *SStorageManager {
 	return storageManager
 }
 
-func Init(host IHost) error {
+func Init(host hostutils.IHost) error {
 	var (
 		err    error
 		zone   = host.GetZone()
diff --git a/pkg/hostman/storageman/diskbase.go b/pkg/hostman/storageman/diskbase.go
index 9425593fb1..fbbd18b9bf 100644
--- a/pkg/hostman/storageman/diskbase.go
+++ b/pkg/hostman/storageman/diskbase.go
@@ -14,32 +14,31 @@ import (
 type IDisk interface {
 	GetId() string
 	Probe() error
-
+	GetPath() string
+	GetSnapshotDir() string
 	GetDiskDesc() jsonutils.JSONObject
 	GetDiskSetupScripts(idx int) string
 
-	// TODO
-	// DeleteAllSnapshot() error
+	// TODO DeleteAllSnapshot() error
 	Delete(ctx context.Context, params interface{}) (jsonutils.JSONObject, error)
 	Resize(ctx context.Context, params interface{}) (jsonutils.JSONObject, error)
-
-	GetPath() string
-	GetSnapshotDir() string
+	PrepareSaveToGlance(ctx context.Context, params interface{}) (jsonutils.JSONObject, error)
+	ResetFromSnapshot(ctx context.Context, params interface{}) (jsonutils.JSONObject, error)
+	CleanupSnapshots(ctx context.Context, params interface{}) (jsonutils.JSONObject, error)
 
 	CreateFromUrl(context.Context, string) error
-	// CreateFromSnapshot
+	// TODO CreateFromSnapshot
 	CreateFromTemplate(context.Context, string, string, int64) (jsonutils.JSONObject, error)
 	CreateFromImageFuse(context.Context, string) error
 	CreateRaw(ctx context.Context, sizeMb int, diskFromat string, fsFormat string,
 		encryption bool, diskId string, back string) (jsonutils.JSONObject, error)
+	PostCreateFromImageFuse()
 
 	CreateSnapshot(snapshotId string) error
-	DeleteSnapshot(snapshotId string) error
+	DeleteSnapshot(snapshotId, convertSnapshot string, pendingDelete bool) error
 
-	// @params: diskPath, guestDesc, deployInfo
-	DeployGuestFs(string, *jsonutils.JSONDict, *guestfs.SDeployInfo) (jsonutils.JSONObject, error)
-
-	PostCreateFromImageFuse()
+	DeployGuestFs(diskPath string, guestDesc *jsonutils.JSONDict,
+		deployInfo *guestfs.SDeployInfo) (jsonutils.JSONObject, error)
 }
 
 type SBaseDisk struct {
diff --git a/pkg/hostman/storageman/diskhandler.go b/pkg/hostman/storageman/diskhandler.go
index 093de8ce70..0f12788df6 100644
--- a/pkg/hostman/storageman/diskhandler.go
+++ b/pkg/hostman/storageman/diskhandler.go
@@ -18,9 +18,13 @@ import (
 var (
 	keyWords    = []string{"disks"}
 	actionFuncs = map[string]actionFunc{
-		"create": diskCreate,
-		"delete": diskDelete,
-		"resize": diskResize,
+		"create":       diskCreate,
+		"delete":       diskDelete,
+		"resize":       diskResize,
+		"save-prepare": diskSavePrepare,
+		"reset":        diskReset,
+		// "snapshot":     diskSnapshot,
+		"cleanup-snapshots": diskCleanupSnapshots,
 	}
 )
 
@@ -151,7 +155,7 @@ func perfomrDiskActions(ctx context.Context, w http.ResponseWriter, r *http.Requ
 func diskCreate(ctx context.Context, storage IStorage, diskId string, disk IDisk, body jsonutils.JSONObject) (interface{}, error) {
 	diskInfo, err := body.Get("disk")
 	if err != nil {
-		return nil, httperrors.NewInputParameterError("Missing disk")
+		return nil, httperrors.NewMissingParameterError("disk")
 	}
 	hostutils.DelayTask(ctx, storage.CreateDiskByDiskinfo,
 		&SDiskCreateByDiskinfo{diskId, disk, diskInfo, storage})
@@ -166,8 +170,52 @@ func diskDelete(ctx context.Context, storage IStorage, diskId string, disk IDisk
 func diskResize(ctx context.Context, storage IStorage, diskId string, disk IDisk, body jsonutils.JSONObject) (interface{}, error) {
 	diskInfo, err := body.Get("disk")
 	if err != nil {
-		return nil, httperrors.NewInputParameterError("Missing disk")
+		return nil, httperrors.NewMissingParameterError("disk")
 	}
 	hostutils.DelayTask(ctx, disk.Resize, diskInfo)
 	return nil, nil
 }
+
+func diskSavePrepare(ctx context.Context, storage IStorage, diskId string, disk IDisk, body jsonutils.JSONObject) (interface{}, error) {
+	diskInfo, err := body.Get("disk")
+	if err != nil {
+		return nil, httperrors.NewMissingParameterError("disk")
+	}
+	hostutils.DelayTask(ctx, disk.PrepareSaveToGlance, diskInfo)
+	return nil, nil
+}
+
+func diskReset(ctx context.Context, storage IStorage, diskId string, disk IDisk, body jsonutils.JSONObject) (interface{}, error) {
+	snapshotId, err := body.GetString("snapshot_id")
+	if err != nil {
+		return nil, httperrors.NewMissingParameterError("snapshot_id")
+	}
+	outOfChain, err := body.Bool("out_of_chain")
+	if err != nil {
+		return nil, httperrors.NewMissingParameterError("out_of_chain")
+	}
+	hostutils.DelayTask(ctx, disk.ResetFromSnapshot, &SDiskReset{snapshotId, outOfChain})
+	return nil, nil
+}
+
+// func diskSnapshot(ctx context.Context, storage IStorage, diskId string, disk IDisk, body jsonutils.JSONObject) (interface{}, error) {
+// 	snapshotId, err := body.GetString("snapshot_id")
+// 	if err != nil {
+// 		return nil, httperrors.NewMissingParameterError("snapshot_id")
+// 	}
+// 	hostutils.DelayTask(ctx, disk.CreateSnapshot(snapshotId), snapshotId)
+// 	return nil, nil
+// }
+
+func diskCleanupSnapshots(ctx context.Context, storage IStorage, diskId string, disk IDisk, body jsonutils.JSONObject) (interface{}, error) {
+	convertSnapshots, err := body.GetArray("convert_snapshots")
+	if err != nil {
+		return nil, httperrors.NewMissingParameterError("convert_snapshots")
+	}
+	deleteSnapshots, err := body.GetArray("delete_snapshots")
+	if err != nil {
+		return nil, httperrors.NewMissingParameterError("delete_snapshots")
+	}
+	hostutils.DelayTask(ctx, disk.CleanupSnapshots, &SDiskCleanupSnapshots{convertSnapshots, deleteSnapshots})
+	return nil, nil
+}
diff --git a/pkg/hostman/storageman/disklocal.go b/pkg/hostman/storageman/disklocal.go
index 77b89ac87d..026a4756d6 100644
--- a/pkg/hostman/storageman/disklocal.go
+++ b/pkg/hostman/storageman/disklocal.go
@@ -9,6 +9,7 @@ import (
 
 	"yunion.io/x/jsonutils"
 	"yunion.io/x/log"
+	"yunion.io/x/onecloud/pkg/appctx"
 	"yunion.io/x/onecloud/pkg/hostman/hostutils"
 	"yunion.io/x/onecloud/pkg/hostman/options"
 	"yunion.io/x/onecloud/pkg/hostman/storageman/remotefile"
@@ -302,3 +303,176 @@ func (d *SLocalDisk) PostCreateFromImageFuse() {
 		log.Errorln(err)
 	}
 }
+
+func (d *SLocalDisk) CreateSnapshot(snapshotId string) error {
+	snapshotDir := d.GetSnapshotDir()
+	if !fileutils2.Exists(snapshotDir) {
+		err := exec.Command("mkdir", "-p", snapshotDir).Run()
+		if err != nil {
+			log.Errorln(err)
+			return err
+		}
+	}
+	snapshotPath := path.Join(snapshotDir, snapshotId)
+	err := exec.Command("mv", "-f", d.getPath(), snapshotPath).Run()
+	if err != nil {
+		log.Errorln(err)
+		return err
+	}
+	img, err := qemuimg.NewQemuImage(d.getPath())
+	if err != nil {
+		log.Errorln(err)
+		exec.Command("mv", "-f", snapshotPath, d.getPath()).Run()
+		return err
+	}
+	if err := img.CreateQcow2(0, false, snapshotPath); err != nil {
+		log.Errorf("Snapshot create image error %s", err)
+		exec.Command("mv", "-f", snapshotPath, d.getPath()).Run()
+		return err
+	}
+	return nil
+}
+
+func (d *SLocalDisk) DeleteSnapshot(snapshotId, convertSnapshot string, pendingDelete bool) error {
+	snapshotDir := d.GetSnapshotDir()
+	if len(convertSnapshot) > 0 {
+		if !fileutils2.Exists(snapshotDir) {
+			err := exec.Command("mkdir", "-p", snapshotDir).Run()
+			if err != nil {
+				log.Errorln(err)
+				return err
+			}
+		}
+		convertSnapshotPath := path.Join(snapshotDir, convertSnapshot)
+		output := convertSnapshotPath + ".tmp"
+		if fileutils2.Exists(output) {
+			exec.Command("rm", "-f", output).Run()
+		}
+		img, err := qemuimg.NewQemuImage(convertSnapshotPath)
+		if err != nil {
+			log.Errorln(err)
+			return err
+		}
+		if err = img.Convert2Qcow2To(output, true); err != nil {
+			log.Errorln(err)
+			exec.Command("rm", "-f", output).Run()
+			return err
+		}
+		if err = exec.Command("rm", "-f", convertSnapshotPath).Run(); err != nil {
+			log.Errorln(err)
+			return err
+		}
+		if err = exec.Command("mv", "-f", output, convertSnapshotPath).Run(); err != nil {
+			log.Errorln(err)
+			return err
+		}
+		if !pendingDelete {
+			err = exec.Command("rm", "-f", path.Join(snapshotDir, snapshotId)).Run()
+			if err != nil {
+				log.Errorln(err)
+				return err
+			}
+		}
+		return nil
+	} else {
+		err := exec.Command("rm", "-f", path.Join(snapshotDir, snapshotId)).Run()
+		if err != nil {
+			log.Errorln(err)
+			return err
+		}
+		return nil
+	}
+}
+
+func (d *SLocalDisk) PrepareSaveToGlance(ctx context.Context, params interface{}) (jsonutils.JSONObject, error) {
+	diskInfo, ok := params.(*jsonutils.JSONDict)
+	if !ok {
+		return nil, hostutils.ParamsError
+	}
+	if err := d.Probe(); err != nil {
+		return nil, err
+	}
+	destDir := d.Storage.GetImgsaveBackupPath()
+	if err := exec.Command("mkdir", "-p", destDir).Run(); err != nil {
+		log.Errorln(err)
+		return nil, err
+	}
+	backupPath := path.Join(destDir, fmt.Sprintf("%s.%s", d.Id, appctx.AppContextTaskId(ctx)))
+	if err := exec.Command("cp", "--sparse=always", "-f", d.GetPath(), backupPath).Run(); err != nil {
+		log.Errorln(err)
+		exec.Command("rm", "-f", backupPath).Run()
+		return nil, err
+	}
+	return jsonutils.NewDict(jsonutils.NewPair("backup", jsonutils.NewString(backupPath))), nil
+}
+
+func (d *SLocalDisk) ResetFromSnapshot(ctx context.Context, params interface{}) (jsonutils.JSONObject, error) {
+	resetParams, ok := params.(*SDiskReset)
+	if !ok {
+		return nil, hostutils.ParamsError
+	}
+
+	snapshotDir := d.GetSnapshotDir()
+	snapshotPath := path.Join(snapshotDir, resetParams.SnapshotId)
+	diskTmpPath := d.GetPath() + "_reset.tmp"
+	if err := exec.Command("mv", "-f", d.GetPath(), diskTmpPath).Run(); err != nil {
+		log.Errorln(err)
+		return nil, err
+	}
+	if !resetParams.OutOfChain {
+		img, err := qemuimg.NewQemuImage(d.GetPath())
+		if err != nil {
+			log.Errorln(err)
+			exec.Command("mv", "-f", diskTmpPath, d.GetPath()).Run()
+			return nil, err
+		}
+		if err := img.CreateQcow2(0, false, snapshotPath); err != nil {
+			log.Errorln(err)
+			exec.Command("mv", "-f", diskTmpPath, d.GetPath()).Run()
+			return nil, err
+		}
+	} else {
+		if err := exec.Command("cp", "-f", snapshotPath, d.GetPath()).Run(); err != nil {
+			log.Errorln(err)
+			exec.Command("mv", "-f", diskTmpPath, d.GetPath()).Run()
+			return nil, err
+		}
+	}
+	return nil, exec.Command("rm", "-f", diskTmpPath).Run()
+}
+
+func (d *SLocalDisk) CleanupSnapshots(ctx context.Context, params interface{}) (jsonutils.JSONObject, error) {
+	cleanupParams, ok := params.(*SDiskCleanupSnapshots)
+	if !ok {
+		return nil, hostutils.ParamsError
+	}
+	snapshotDir := d.GetSnapshotDir()
+	for _, snapshotId := range cleanupParams.ConvertSnapshots {
+		snapId, _ := snapshotId.GetString()
+		snapshotPath := path.Join(snapshotDir, snapId)
+		output := snapshotPath + "_convert.tmp"
+		img, err := qemuimg.NewQemuImage(snapshotPath)
+		if err != nil {
+			log.Errorln(err)
+			return nil, err
+		}
+		if err = img.Convert2Qcow2To(output, true); err != nil {
+			log.Errorln(err)
+			return nil, err
+		}
+		if exec.Command("mv", "-f", output, snapshotPath).Run(); err != nil {
+			exec.Command("rm", "-f", output).Run()
+			log.Errorln(err)
+			return nil, err
+		}
+	}
+
+	for _, snapshotId := range cleanupParams.DeleteSnapshots {
+		snapId, _ := snapshotId.GetString()
+		if err := exec.Command("rm", "-f", path.Join(snapshotDir, snapId)).Run(); err != nil {
+			log.Errorln(err)
+			return nil, err
+		}
+	}
+	return nil, nil
+}
diff --git a/pkg/hostman/storageman/storagebase.go b/pkg/hostman/storageman/storagebase.go
index 8e59f218c0..0ab9995cb7 100644
--- a/pkg/hostman/storageman/storagebase.go
+++ b/pkg/hostman/storageman/storagebase.go
@@ -47,6 +47,7 @@ type IStorage interface {
 	DeleteDiskfile(diskPath string) error
 	GetFuseTmpPath() string
 	GetFuseMountPath() string
+	GetImgsaveBackupPath() string
 }
 
 type SBaseStorage struct {
@@ -219,3 +220,7 @@ func (s *SBaseStorage) CreateDiskFromSnpashot(ctx context.Context, disk IDisk, c
 	}
 	return disk.GetDiskDesc(), nil
 }
+
+func (s *SLocalStorage) GetImgsaveBackupPath() string {
+	return s.getSubdirPath(_IMGSAVE_BACKUPS_)
+}
diff --git a/pkg/hostman/storageman/storagehandler.go b/pkg/hostman/storageman/storagehandler.go
index a50827e609..f74b83bcf2 100644
--- a/pkg/hostman/storageman/storagehandler.go
+++ b/pkg/hostman/storageman/storagehandler.go
@@ -106,7 +106,7 @@ func storageUpdate(ctx context.Context, body jsonutils.JSONObject) (interface{},
 	storage := storageManager.GetStorage(storageId)
 	ret, err := modules.Hoststorages.Get(hostutils.GetComputeSession(context.Background()),
 		storageManager.GetHostId(), storageId,
-		jsonutils.NewDict(jsonutils.JSONPair{"details", jsonutils.JSONTrue}))
+		jsonutils.NewDict(jsonutils.NewPair("details", jsonutils.JSONTrue)))
 	if err != nil {
 		log.Errorln(err)
 		return nil, err
diff --git a/pkg/hostman/storageman/storagehelper.go b/pkg/hostman/storageman/storagehelper.go
index 5801069f4b..1bef35d379 100644
--- a/pkg/hostman/storageman/storagehelper.go
+++ b/pkg/hostman/storageman/storagehelper.go
@@ -9,3 +9,13 @@ type SDiskCreateByDiskinfo struct {
 
 	Storage IStorage
 }
+
+type SDiskReset struct {
+	SnapshotId string
+	OutOfChain bool
+}
+
+type SDiskCleanupSnapshots struct {
+	ConvertSnapshots []jsonutils.JSONObject
+	DeleteSnapshots  []jsonutils.JSONObject
+}
diff --git a/vendor/yunion.io/x/jsonutils/access.go b/vendor/yunion.io/x/jsonutils/access.go
index 86b24ff039..c1f26bf13e 100644
--- a/vendor/yunion.io/x/jsonutils/access.go
+++ b/vendor/yunion.io/x/jsonutils/access.go
@@ -14,6 +14,10 @@ type JSONPair struct {
 	val JSONObject
 }
 
+func NewPair(key string, val JSONObject) JSONPair {
+	return JSONPair{key, val}
+}
+
 func NewDict(objs ...JSONPair) *JSONDict {
 	dict := JSONDict{data: make(map[string]JSONObject)}
 	for _, o := range objs {