diff --git a/pkg/cloudcommon/db/db_dispatcher.go b/pkg/cloudcommon/db/db_dispatcher.go
index 924a785782..19a642e3ce 100644
--- a/pkg/cloudcommon/db/db_dispatcher.go
+++ b/pkg/cloudcommon/db/db_dispatcher.go
@@ -276,6 +276,11 @@ func applyListItemsGeneralJointFilters(manager IModelManager, q *sqlchemy.SQuery
 	return q, nil
 }
 
+func ListItemQueryFilters(manager IModelManager, ctx context.Context, q *sqlchemy.SQuery,
+	userCred mcclient.TokenCredential, query jsonutils.JSONObject) (*sqlchemy.SQuery, error) {
+	return listItemQueryFilters(manager, ctx, q, userCred, query)
+}
+
 func listItemQueryFilters(manager IModelManager, ctx context.Context, q *sqlchemy.SQuery,
 	userCred mcclient.TokenCredential, query jsonutils.JSONObject) (*sqlchemy.SQuery, error) {
 
diff --git a/pkg/scheduler/util/baremetal/diskconfig.go b/pkg/compute/baremetal/diskconfig.go
similarity index 79%
rename from pkg/scheduler/util/baremetal/diskconfig.go
rename to pkg/compute/baremetal/diskconfig.go
index 0914e4ec81..a7a28e5ce0 100644
--- a/pkg/scheduler/util/baremetal/diskconfig.go
+++ b/pkg/compute/baremetal/diskconfig.go
@@ -8,68 +8,10 @@ import (
 	"strings"
 
 	"yunion.io/x/log"
-	"yunion.io/x/onecloud/pkg/scheduler/api"
 	"yunion.io/x/pkg/util/sets"
 	"yunion.io/x/pkg/utils"
 )
 
-const (
-	DISK_CONF_RAID0  = api.DISK_CONF_RAID0
-	DISK_CONF_RAID1  = api.DISK_CONF_RAID1
-	DISK_CONF_RAID5  = api.DISK_CONF_RAID5
-	DISK_CONF_RAID10 = api.DISK_CONF_RAID10
-	DISK_CONF_NONE   = api.DISK_CONF_NONE
-
-	DEFAULT_DISK_CONF = DISK_CONF_NONE
-
-	DISK_TYPE_ROTATE = api.DISK_TYPE_ROTATE
-	DISK_TYPE_SSD    = api.DISK_TYPE_SSD
-	DISK_TYPE_HYBRID = api.DISK_TYPE_HYBRID
-
-	DEFAULT_DISK_TYPE = DISK_TYPE_ROTATE
-
-	DISK_DRIVER_MEGARAID   = api.DISK_DRIVER_MEGARAID
-	DISK_DRIVER_LINUX      = api.DISK_DRIVER_LINUX
-	DISK_DRIVER_HPSARAID   = api.DISK_DRIVER_HPSARAID
-	DISK_DRIVER_MPT2SAS    = api.DISK_DRIVER_MPT2SAS
-	DISK_DRIVER_MARVELRAID = api.DISK_DRIVER_MARVELRAID
-	DISK_DRIVER_PCIE       = api.DISK_DRIVER_PCIE
-
-	HDD_DISK_SPEC_TYPE = api.HDD_DISK_SPEC_TYPE
-	SSD_DISK_SPEC_TYPE = api.SSD_DISK_SPEC_TYPE
-
-	ErrMoreThanOneSizeUnspecificSplit = `more than 1 size unspecific split`
-	ErrNoMoreSpaceForUnspecificSplit  = `no more space for an unspecific split`
-	ErrSubtotalOfSplitExceedsDiskSize = `subtotal of split exceeds disk size`
-)
-
-var (
-	DISK_CONFS = sets.NewString(
-		DISK_CONF_RAID0,
-		DISK_CONF_RAID1,
-		DISK_CONF_RAID5,
-		DISK_CONF_RAID10,
-		DISK_CONF_NONE,
-	)
-
-	DISK_TYPES = sets.NewString(
-		DISK_TYPE_ROTATE,
-		DISK_TYPE_SSD,
-		DISK_TYPE_HYBRID,
-	)
-
-	DISK_DRIVERS_RAID = sets.NewString(
-		DISK_DRIVER_MEGARAID,
-		DISK_DRIVER_HPSARAID,
-		DISK_DRIVER_MPT2SAS,
-		DISK_DRIVER_MARVELRAID,
-	)
-
-	DISK_DRIVERS = sets.NewString(
-		DISK_DRIVER_LINUX,
-		DISK_DRIVER_PCIE).Union(DISK_DRIVERS_RAID)
-)
-
 // return bytes
 func parseStrip(stripStr string, defaultSize string) int64 {
 	size, _ := utils.GetSize(stripStr, defaultSize, 1024)
@@ -149,7 +91,7 @@ func ParseRange(rangeStr string) (ret []int64, err error) {
 	return
 }
 
-func ParseDiskConfig(desc string) (bdc api.BaremetalDiskConfig, err error) {
+func ParseDiskConfig(desc string) (bdc BaremetalDiskConfig, err error) {
 	bdc.Type = DISK_TYPE_HYBRID
 	bdc.Conf = DISK_CONF_NONE
 	bdc.Count = 0
@@ -216,11 +158,11 @@ func ParseDiskConfig(desc string) (bdc api.BaremetalDiskConfig, err error) {
 }
 
 func isDiskConfigStorageMatch(
-	config *api.BaremetalDiskConfig,
+	config *BaremetalDiskConfig,
 	confDriver *string,
 	confAdapter *int,
-	storage *api.BaremetalStorage,
-	selected []*api.BaremetalStorage,
+	storage *BaremetalStorage,
+	selected []*BaremetalStorage,
 ) bool {
 	isRotate := storage.Rotate
 	adapter := storage.Adapter
@@ -252,7 +194,7 @@ func isDiskConfigStorageMatch(
 	return false
 }
 
-func RetrieveStorages(diskConfig *api.BaremetalDiskConfig, storages []*api.BaremetalStorage) (selected, rest []*api.BaremetalStorage) {
+func RetrieveStorages(diskConfig *BaremetalDiskConfig, storages []*BaremetalStorage) (selected, rest []*BaremetalStorage) {
 	var confDriver *string = nil
 	var confAdapter *int = nil
 
@@ -263,8 +205,8 @@ func RetrieveStorages(diskConfig *api.BaremetalDiskConfig, storages []*api.Barem
 		confDriver = &diskConfig.Driver
 	}
 
-	selected = make([]*api.BaremetalStorage, 0)
-	rest = make([]*api.BaremetalStorage, 0)
+	selected = make([]*BaremetalStorage, 0)
+	rest = make([]*BaremetalStorage, 0)
 	idx := 0
 
 	for _, storage := range storages {
@@ -307,9 +249,9 @@ func RequireEvenDisks(diskConfig string) bool {
 }
 
 type Layout struct {
-	Disks []*api.BaremetalStorage  `json:"disks"`
-	Conf  *api.BaremetalDiskConfig `json:"conf"`
-	Size  int64                    `json:"size"`
+	Disks []*BaremetalStorage  `json:"disks"`
+	Conf  *BaremetalDiskConfig `json:"conf"`
+	Size  int64                `json:"size"`
 }
 
 func (l Layout) String() string {
@@ -317,7 +259,7 @@ func (l Layout) String() string {
 	return string(bytes)
 }
 
-func RetrieveStorageDrivers(storages []*api.BaremetalStorage) sets.String {
+func RetrieveStorageDrivers(storages []*BaremetalStorage) sets.String {
 	ret := sets.NewString()
 	for _, s := range storages {
 		ret = ret.Union(sets.NewString(s.Driver))
@@ -326,8 +268,8 @@ func RetrieveStorageDrivers(storages []*api.BaremetalStorage) sets.String {
 }
 
 func MeetConfig(
-	conf *api.BaremetalDiskConfig,
-	storages []*api.BaremetalStorage,
+	conf *BaremetalDiskConfig,
+	storages []*BaremetalStorage,
 ) error {
 	storageDrvs := RetrieveStorageDrivers(storages)
 	if len(storageDrvs.List()) > 1 {
@@ -380,7 +322,7 @@ func MeetConfig(
 	return nil
 }
 
-func GetStoragesMinSize(ss []*api.BaremetalStorage) int64 {
+func GetStoragesMinSize(ss []*BaremetalStorage) int64 {
 	minSize := int64(-1)
 	for _, s := range ss {
 		if minSize < 0 || minSize > s.Size {
@@ -390,7 +332,7 @@ func GetStoragesMinSize(ss []*api.BaremetalStorage) int64 {
 	return minSize
 }
 
-func CalculateSize(conf string, storages []*api.BaremetalStorage) int64 {
+func CalculateSize(conf string, storages []*BaremetalStorage) int64 {
 	if conf == "" {
 		conf = DEFAULT_DISK_CONF
 	}
@@ -427,7 +369,7 @@ func GetSplitSizes(size int64, splitConf string) []int64 {
 			subtotal += isizes[index]
 		} else {
 			if leftoverIdx >= 0 {
-				log.Errorln(ErrMoreThanOneSizeUnspecificSplit)
+				log.Errorf("%v", ErrMoreThanOneSizeUnspecificSplit)
 				return []int64{}
 			}
 			leftoverIdx = index
@@ -436,12 +378,12 @@ func GetSplitSizes(size int64, splitConf string) []int64 {
 	if leftoverIdx >= 0 {
 		isizes[leftoverIdx] = size - subtotal
 		if isizes[leftoverIdx] <= 0 {
-			log.Errorln(ErrNoMoreSpaceForUnspecificSplit)
+			log.Errorf("%v", ErrNoMoreSpaceForUnspecificSplit)
 			return []int64{}
 		}
 	} else {
 		if subtotal > size {
-			log.Errorln(ErrSubtotalOfSplitExceedsDiskSize)
+			log.Errorf("%v", ErrSubtotalOfSplitExceedsDiskSize)
 			return []int64{}
 		}
 	}
@@ -454,7 +396,7 @@ func ExpandNoneConf(layouts []Layout) (ret []Layout) {
 			conf := layout.Conf
 			conf.Count = 1
 			for _, disk := range layout.Disks {
-				ret = append(ret, Layout{Disks: []*api.BaremetalStorage{disk}, Conf: conf, Size: disk.Size})
+				ret = append(ret, Layout{Disks: []*BaremetalStorage{disk}, Conf: conf, Size: disk.Size})
 			}
 		} else {
 			ret = append(ret, layout)
@@ -464,20 +406,20 @@ func ExpandNoneConf(layouts []Layout) (ret []Layout) {
 }
 
 func CalculateLayout(
-	confs []*api.BaremetalDiskConfig,
-	storages []*api.BaremetalStorage,
+	confs []*BaremetalDiskConfig,
+	storages []*BaremetalStorage,
 ) (layouts []Layout, err error) {
 
 	if len(confs) == 0 {
-		err = fmt.Errorf("[]*api.BaremetalDiskConfig must be provided.")
+		err = fmt.Errorf("[]*BaremetalDiskConfig must be provided.")
 		return
 	}
 
 	layouts = make([]Layout, 0)
 	var (
-		plainDisks = make([]*api.BaremetalStorage, 0)
-		pcieDisks  = make([]*api.BaremetalStorage, 0)
-		raidDisks  = make([]*api.BaremetalStorage, 0)
+		plainDisks = make([]*BaremetalStorage, 0)
+		pcieDisks  = make([]*BaremetalStorage, 0)
+		raidDisks  = make([]*BaremetalStorage, 0)
 	)
 
 	for _, storage := range storages {
@@ -493,7 +435,7 @@ func CalculateLayout(
 	if len(plainDisks) > 0 {
 		layouts = append(layouts, Layout{
 			Disks: plainDisks,
-			Conf:  &api.BaremetalDiskConfig{Conf: DISK_CONF_NONE},
+			Conf:  &BaremetalDiskConfig{Conf: DISK_CONF_NONE},
 			Size:  0,
 		})
 	}
@@ -557,7 +499,7 @@ func CalculateLayout(
 	if len(pcieDisks) > 0 {
 		layouts = append(layouts, Layout{
 			Disks: pcieDisks,
-			Conf:  &api.BaremetalDiskConfig{Conf: DISK_CONF_NONE},
+			Conf:  &BaremetalDiskConfig{Conf: DISK_CONF_NONE},
 			Size:  0,
 		})
 	}
@@ -582,7 +524,7 @@ func expandLayoutSplits(layouts []Layout) []Layout {
 	return ret
 }
 
-func CheckDisksAllocable(layouts []Layout, disks []*api.Disk) bool {
+func CheckDisksAllocable(layouts []Layout, disks []*Disk) bool {
 	layouts = expandLayoutSplits(layouts)
 	storeIndex := 0
 	storeFreeSize := int64(-1)
@@ -619,8 +561,8 @@ func CheckDisksAllocable(layouts []Layout, disks []*api.Disk) bool {
 	return true
 }
 
-func NewBaremetalDiskConfigs(dss ...string) ([]*api.BaremetalDiskConfig, error) {
-	ret := make([]*api.BaremetalDiskConfig, 0)
+func NewBaremetalDiskConfigs(dss ...string) ([]*BaremetalDiskConfig, error) {
+	ret := make([]*BaremetalDiskConfig, 0)
 	for _, ds := range dss {
 		r, err := ParseDiskConfig(ds)
 		if err != nil {
@@ -634,7 +576,7 @@ func NewBaremetalDiskConfigs(dss ...string) ([]*api.BaremetalDiskConfig, error)
 type SpecSizeCount map[string]int
 type DiskSpec map[string]SpecSizeCount
 
-func GetDiskSpec(storages []*api.BaremetalStorage) DiskSpec {
+func GetDiskSpec(storages []*BaremetalStorage) DiskSpec {
 	diskSpec := make(map[string]SpecSizeCount)
 
 	for _, s := range storages {
@@ -658,3 +600,56 @@ func GetDiskSpec(storages []*api.BaremetalStorage) DiskSpec {
 	}
 	return diskSpec
 }
+
+func getStoragesByDriver(driver string, storages []*BaremetalStorage) []*BaremetalStorage {
+	ret := make([]*BaremetalStorage, 0)
+	for _, s := range storages {
+		if s.Driver == driver {
+			ret = append(ret, s)
+		}
+	}
+	return ret
+}
+
+func groupByAdapter(storages []*BaremetalStorage) map[string][]*BaremetalStorage {
+	ret := make(map[string][]*BaremetalStorage)
+	for _, storage := range storages {
+		adapter := storage.Adapter
+		adapterKey := fmt.Sprintf("adapter%d", adapter)
+		oldStorages := ret[adapterKey]
+		if len(oldStorages) == 0 {
+			ret[adapterKey] = []*BaremetalStorage{storage}
+		} else {
+			oldStorages = append(oldStorages, storage)
+			ret[adapterKey] = oldStorages
+		}
+	}
+	return ret
+}
+
+type DiskAdapterSpecs map[string]DiskSpec
+
+func getSpec(storages []*BaremetalStorage) DiskAdapterSpecs {
+	ret := make(map[string]DiskSpec)
+	for adapterKey, newStorages := range groupByAdapter(storages) {
+		if len(newStorages) == 0 {
+			continue
+		}
+		ret[adapterKey] = GetDiskSpec(newStorages)
+	}
+	return ret
+}
+
+type DiskDriverSpecs map[string]DiskAdapterSpecs
+
+func GetDiskSpecV2(storages []*BaremetalStorage) DiskDriverSpecs {
+	spec := make(map[string]DiskAdapterSpecs)
+	for _, driver := range DISK_DRIVERS.List() {
+		driverStorages := getStoragesByDriver(driver, storages)
+		if len(driverStorages) == 0 {
+			continue
+		}
+		spec[driver] = getSpec(storages)
+	}
+	return spec
+}
diff --git a/pkg/scheduler/util/baremetal/diskconfig_test.go b/pkg/compute/baremetal/diskconfig_test.go
similarity index 96%
rename from pkg/scheduler/util/baremetal/diskconfig_test.go
rename to pkg/compute/baremetal/diskconfig_test.go
index 2bda6f4ca3..b5bd96d0ea 100644
--- a/pkg/scheduler/util/baremetal/diskconfig_test.go
+++ b/pkg/compute/baremetal/diskconfig_test.go
@@ -6,7 +6,6 @@ import (
 	"testing"
 
 	"yunion.io/x/log"
-	"yunion.io/x/onecloud/pkg/scheduler/api"
 )
 
 func TestParseDiskConfig(t *testing.T) {
@@ -23,13 +22,13 @@ func TestParseDiskConfig(t *testing.T) {
 	tests := []struct {
 		name    string
 		args    args
-		wantBdc api.BaremetalDiskConfig
+		wantBdc BaremetalDiskConfig
 		wantErr bool
 	}{
 		{
 			name: "rotate:[1-2,4-5]:MegaRaid",
 			args: args{"rotate:[1-2,4-5]:MegaRaid"},
-			wantBdc: api.BaremetalDiskConfig{
+			wantBdc: BaremetalDiskConfig{
 				Type:   DISK_TYPE_ROTATE,
 				Conf:   DISK_CONF_NONE,
 				Driver: DISK_DRIVER_MEGARAID,
@@ -41,7 +40,7 @@ func TestParseDiskConfig(t *testing.T) {
 		{
 			name: "rotate:[1-2,4,6]:raid10:marvelraid",
 			args: args{"rotate:[1-2,4,6]:raid10:marvelraid"},
-			wantBdc: api.BaremetalDiskConfig{
+			wantBdc: BaremetalDiskConfig{
 				Type:   DISK_TYPE_ROTATE,
 				Conf:   DISK_CONF_RAID10,
 				Driver: DISK_DRIVER_MARVELRAID,
@@ -53,7 +52,7 @@ func TestParseDiskConfig(t *testing.T) {
 		{
 			name: "rotate:[4,6]:raid10",
 			args: args{"rotate:[4,6]:raid10"},
-			wantBdc: api.BaremetalDiskConfig{
+			wantBdc: BaremetalDiskConfig{
 				Type:  DISK_TYPE_ROTATE,
 				Conf:  DISK_CONF_RAID10,
 				Count: 0,
@@ -64,7 +63,7 @@ func TestParseDiskConfig(t *testing.T) {
 		{
 			name: "rotate:[4]:raid10:(40%, )",
 			args: args{"rotate:[4]:raid10:(40%, )"},
-			wantBdc: api.BaremetalDiskConfig{
+			wantBdc: BaremetalDiskConfig{
 				Type:   DISK_TYPE_ROTATE,
 				Conf:   DISK_CONF_RAID10,
 				Count:  0,
@@ -76,7 +75,7 @@ func TestParseDiskConfig(t *testing.T) {
 		{
 			name: "[12-13]:raid1:(100g,32g,):adapter0:strip64k",
 			args: args{"[12-13]:raid1:(100g,32g,):adapter0:strip64k"},
-			wantBdc: api.BaremetalDiskConfig{
+			wantBdc: BaremetalDiskConfig{
 				Type:    DISK_TYPE_HYBRID,
 				Conf:    DISK_CONF_RAID1,
 				Count:   0,
@@ -90,7 +89,7 @@ func TestParseDiskConfig(t *testing.T) {
 		{
 			name: "6:raid5:adapter2",
 			args: args{"6:raid5:adapter2"},
-			wantBdc: api.BaremetalDiskConfig{
+			wantBdc: BaremetalDiskConfig{
 				Type:    DISK_TYPE_HYBRID,
 				Conf:    DISK_CONF_RAID5,
 				Count:   6,
@@ -163,7 +162,7 @@ func TestParseRange(t *testing.T) {
 }
 
 var (
-	testStorages = []*api.BaremetalStorage{
+	testStorages = []*BaremetalStorage{
 		// 0-11 disk on adapter2
 		{
 			Driver:  DISK_DRIVER_MEGARAID,
@@ -252,7 +251,7 @@ var (
 			Adapter: 0,
 		},
 	}
-	bitmainStorage = []*api.BaremetalStorage{
+	bitmainStorage = []*BaremetalStorage{
 		{
 			Driver:       DISK_DRIVER_MARVELRAID,
 			Rotate:       true,
@@ -580,7 +579,7 @@ func TestCheckDisksAllocable(t *testing.T) {
 	}
 
 	layout, err := CalculateLayout(confs, testStorages)
-	defaultLayout, err := CalculateLayout([]*api.BaremetalDiskConfig{&api.BaremetalDefaultDiskConfig}, testStorages[12:])
+	defaultLayout, err := CalculateLayout([]*BaremetalDiskConfig{&BaremetalDefaultDiskConfig}, testStorages[12:])
 	if err != nil {
 		t.Fatalf("CalculateLayout err: %v", err)
 	}
@@ -593,48 +592,48 @@ func TestCheckDisksAllocable(t *testing.T) {
 	log.Debugf("layout: %s", layout)
 	log.Debugf("Bitmain layout: %s", bitmainLayout)
 
-	tdiskDefault := []*api.Disk{
+	tdiskDefault := []*Disk{
 		{Size: -1},
 		{Size: -1},
 	}
 
-	tdisk1 := []*api.Disk{
+	tdisk1 := []*Disk{
 		{Size: 960000},
 		{Size: -1},
 		{Size: -1},
 		{Size: -1},
 	}
 
-	tdisk2 := []*api.Disk{
+	tdisk2 := []*Disk{
 		{Size: -1},
 		{Size: -1},
 		{Size: -1},
 		{Size: -1},
 	}
 
-	tdisk3 := []*api.Disk{
+	tdisk3 := []*Disk{
 		{Size: 102398},
 		{Size: -1},
 		{Size: -1},
 		{Size: -1},
 	}
 
-	btdisk1 := []*api.Disk{
+	btdisk1 := []*Disk{
 		{Size: 61438},
 		{Size: -1},
 	}
 
-	btdisk2 := []*api.Disk{
+	btdisk2 := []*Disk{
 		{Size: 61440},
 		{Size: -1},
 	}
 
-	btdisk3 := []*api.Disk{
+	btdisk3 := []*Disk{
 		{Size: -1},
 		{Size: -1},
 	}
 
-	btPcieDisk := []*api.Disk{
+	btPcieDisk := []*Disk{
 		{Size: 44440},
 		{Size: -1},
 		{Size: -1},
@@ -644,7 +643,7 @@ func TestCheckDisksAllocable(t *testing.T) {
 
 	type args struct {
 		layouts []Layout
-		disks   []*api.Disk
+		disks   []*Disk
 	}
 	tests := []struct {
 		name string
@@ -727,7 +726,7 @@ func TestCheckDisksAllocable(t *testing.T) {
 
 func TestGetDiskSpec(t *testing.T) {
 	type args struct {
-		storages []*api.BaremetalStorage
+		storages []*BaremetalStorage
 	}
 	tests := []struct {
 		name string
@@ -1068,7 +1067,7 @@ var testStorages2 string = `
 `
 
 func TestStorageLoad(t *testing.T) {
-	ss := make([]*api.BaremetalStorage, 0)
+	ss := make([]*BaremetalStorage, 0)
 	confs, err := NewBaremetalDiskConfigs(
 		"2:raid1:MarvelRaid",
 		"4:raid10:MegaRaid",
diff --git a/pkg/compute/baremetal/doc.go b/pkg/compute/baremetal/doc.go
new file mode 100644
index 0000000000..c9baa72a40
--- /dev/null
+++ b/pkg/compute/baremetal/doc.go
@@ -0,0 +1 @@
+package baremetal // import "yunion.io/x/onecloud/pkg/compute/baremetal"
diff --git a/pkg/compute/baremetal/types.go b/pkg/compute/baremetal/types.go
new file mode 100644
index 0000000000..dcf6bf5b4f
--- /dev/null
+++ b/pkg/compute/baremetal/types.go
@@ -0,0 +1,119 @@
+package baremetal
+
+import (
+	"errors"
+
+	"yunion.io/x/pkg/util/sets"
+)
+
+const (
+	DISK_CONF_RAID0  = "raid0"
+	DISK_CONF_RAID1  = "raid1"
+	DISK_CONF_RAID5  = "raid5"
+	DISK_CONF_RAID10 = "raid10"
+	DISK_CONF_NONE   = "none"
+
+	DEFAULT_DISK_CONF = DISK_CONF_NONE
+
+	DISK_TYPE_ROTATE = "rotate"
+	DISK_TYPE_SSD    = "ssd"
+	DISK_TYPE_HYBRID = "hybrid"
+
+	DEFAULT_DISK_TYPE = DISK_TYPE_ROTATE
+
+	DISK_DRIVER_MEGARAID   = "MegaRaid"
+	DISK_DRIVER_LINUX      = "Linux"
+	DISK_DRIVER_HPSARAID   = "HPSARaid"
+	DISK_DRIVER_MPT2SAS    = "Mpt2SAS"
+	DISK_DRIVER_MARVELRAID = "MarvelRaid"
+	DISK_DRIVER_PCIE       = "PCIE"
+
+	HDD_DISK_SPEC_TYPE = "HDD"
+	SSD_DISK_SPEC_TYPE = "SSD"
+)
+
+var (
+	BaremetalDefaultDiskConfig = BaremetalDiskConfig{
+		Type:  DISK_TYPE_HYBRID,
+		Conf:  DISK_CONF_NONE,
+		Count: 0,
+	}
+
+	DISK_CONFS = sets.NewString(
+		DISK_CONF_RAID0,
+		DISK_CONF_RAID1,
+		DISK_CONF_RAID5,
+		DISK_CONF_RAID10,
+		DISK_CONF_NONE,
+	)
+
+	DISK_TYPES = sets.NewString(
+		DISK_TYPE_ROTATE,
+		DISK_TYPE_SSD,
+		DISK_TYPE_HYBRID,
+	)
+
+	DISK_DRIVERS_RAID = sets.NewString(
+		DISK_DRIVER_MEGARAID,
+		DISK_DRIVER_HPSARAID,
+		DISK_DRIVER_MPT2SAS,
+		DISK_DRIVER_MARVELRAID,
+	)
+
+	DISK_DRIVERS = sets.NewString(
+		DISK_DRIVER_LINUX,
+		DISK_DRIVER_PCIE).Union(DISK_DRIVERS_RAID)
+)
+
+var (
+	ErrMoreThanOneSizeUnspecificSplit = errors.New(`more than 1 size unspecific split`)
+	ErrNoMoreSpaceForUnspecificSplit  = errors.New(`no more space for an unspecific split`)
+	ErrSubtotalOfSplitExceedsDiskSize = errors.New(`subtotal of split exceeds disk size`)
+)
+
+type BaremetalStorage struct {
+	Slot         int    `json:"slot"`
+	Status       string `json:"status"`
+	Rotate       bool   `json:"rotate"`
+	Adapter      int    `json:"adapter"`
+	Driver       string `json:"driver"`
+	Model        string `json:"model"`
+	Enclosure    int    `json:"enclousure"`
+	Size         int64  `json:"size"`
+	MinStripSize int64  `json:"min_strip_size,omitempty"`
+	MaxStripSize int64  `json:"max_strip_size,omitempty"`
+	Index        int64  `json:"index"`
+}
+
+type BaremetalDiskConfig struct {
+	// disk type
+	Type string `json:"type"`
+	// raid config
+	Conf         string  `json:"conf"`
+	Count        int64   `json:"count"`
+	Range        []int64 `json:"range"`
+	Splits       string  `json:"splits"`
+	Adapter      *int    `json:"adapter"`
+	Driver       string  `json:"driver"`
+	Cachedbadbbu bool    `json:"cachedbadbbu"`
+	Strip        int64   `json:"strip"`
+	RA           bool    `json:"ra"`
+	WT           bool    `json:"wt"`
+	Direct       bool    `json:"direct"`
+}
+
+type Disk struct {
+	Backend         string  `json:"backend"`
+	ImageID         string  `json:"image_id"`
+	Fs              *string `json:"fs"`
+	Os              string  `json:"os"`
+	OSDistribution  string  `json:"os_distribution"`
+	OsVersion       string  `json:"os_version"`
+	Format          string  `json:"format"`
+	MountPoint      *string `json:"mountpoint"`
+	Driver          *string `json:"driver"`
+	Cache           *string `json:"cache"`
+	ImageDiskFormat string  `json:"image_disk_format"`
+	Size            int64   `json:"size"`
+	Storage         *string `json:"storage"`
+}
diff --git a/pkg/compute/handlers.go b/pkg/compute/handlers.go
index 666cbdde56..ede789e479 100644
--- a/pkg/compute/handlers.go
+++ b/pkg/compute/handlers.go
@@ -8,9 +8,10 @@ import (
 	"yunion.io/x/onecloud/pkg/cloudcommon/db"
 	"yunion.io/x/onecloud/pkg/cloudcommon/db/quotas"
 	"yunion.io/x/onecloud/pkg/cloudcommon/db/taskman"
-	"yunion.io/x/onecloud/pkg/compute/models"
-	"yunion.io/x/onecloud/pkg/compute/usages"
 	"yunion.io/x/onecloud/pkg/compute/capabilities"
+	"yunion.io/x/onecloud/pkg/compute/models"
+	"yunion.io/x/onecloud/pkg/compute/specs"
+	"yunion.io/x/onecloud/pkg/compute/usages"
 )
 
 func InitHandlers(app *appsrv.Application) {
@@ -19,6 +20,7 @@ func InitHandlers(app *appsrv.Application) {
 	quotas.AddQuotaHandler(models.QuotaManager, "", app)
 	usages.AddUsageHandler("", app)
 	capabilities.AddCapabilityHandler("", app)
+	specs.AddSpecHandler("", app)
 
 	taskman.AddTaskHandler("", app)
 
diff --git a/pkg/compute/models/disks.go b/pkg/compute/models/disks.go
index 7c4649f67b..c7423b3c04 100644
--- a/pkg/compute/models/disks.go
+++ b/pkg/compute/models/disks.go
@@ -817,27 +817,6 @@ func parseIsoInfo(ctx context.Context, userCred mcclient.TokenCredential, info s
 	return image.Id, nil
 }
 
-// def get_disk_spec_v2(conf):
-//     def _get_spec(storages):
-//         spec = {}
-//         for adapter, ss in group_by_adapter(storages).items():
-//             if len(ss) == 0:
-//                 continue
-//             spec[adapter] = get_disk_spec(ss)
-//         return spec
-
-//     spec = {}
-//     for driver in DISK_DRIVERS:
-//         storages = [s for s in conf if s['driver'] == driver]
-//         if len(storages) != 0:
-//             spec[driver] = _get_spec(storages)
-//     return spec
-
-func GetDiskSpecV2(storageInfo jsonutils.JSONObject) *jsonutils.JSONDict {
-	// ToDo
-	return nil
-}
-
 func (self *SDisk) fetchDiskInfo(diskConfig *SDiskConfig) {
 	if len(diskConfig.ImageId) > 0 {
 		self.TemplateId = diskConfig.ImageId
@@ -859,6 +838,37 @@ func (self *SDisk) fetchDiskInfo(diskConfig *SDiskConfig) {
 	self.DiskSize = diskConfig.Size
 }
 
+type DiskInfo struct {
+	ImageId    string
+	Fs         string
+	MountPoint string
+	Format     string
+	Size       int64
+	StorageId  string
+	Backend    string
+	MediumType string
+	Driver     string
+	Cache      string
+}
+
+func (self *SDisk) ToDiskInfo() DiskInfo {
+	ret := DiskInfo{
+		ImageId:    self.GetTemplateId(),
+		Fs:         self.GetFsFormat(),
+		MountPoint: self.GetMountPoint(),
+		Format:     self.DiskFormat,
+		Size:       int64(self.DiskSize),
+	}
+	storage := self.GetStorage()
+	if storage == nil {
+		return ret
+	}
+	ret.StorageId = storage.Id
+	ret.Backend = storage.StorageType
+	ret.MediumType = storage.MediumType
+	return ret
+}
+
 func (self *SDisk) Delete(ctx context.Context, userCred mcclient.TokenCredential) error {
 	// override
 	log.Infof("disk delete do nothing")
@@ -1035,6 +1045,10 @@ func (self *SDisk) getDev() string {
 	return self.GetMetadata("dev", nil)
 }
 
+func (self *SDisk) GetMountPoint() string {
+	return self.GetMetadata("mountpoint", nil)
+}
+
 func (self *SDisk) isReady() bool {
 	return self.Status == DISK_READY
 }
diff --git a/pkg/compute/models/guestdisks.go b/pkg/compute/models/guestdisks.go
index 26e0c74c0c..484f906b86 100644
--- a/pkg/compute/models/guestdisks.go
+++ b/pkg/compute/models/guestdisks.go
@@ -211,3 +211,14 @@ func (self *SGuestdisk) Delete(ctx context.Context, userCred mcclient.TokenCrede
 func (self *SGuestdisk) Detach(ctx context.Context, userCred mcclient.TokenCredential) error {
 	return db.DetachJoint(ctx, userCred, self)
 }
+
+func (self *SGuestdisk) ToDiskInfo() DiskInfo {
+	disk := self.GetDisk()
+	if disk == nil {
+		return DiskInfo{}
+	}
+	info := disk.ToDiskInfo()
+	info.Driver = self.Driver
+	info.Cache = self.CacheMode
+	return info
+}
diff --git a/pkg/compute/models/guests.go b/pkg/compute/models/guests.go
index 723f40b45a..586846ff21 100644
--- a/pkg/compute/models/guests.go
+++ b/pkg/compute/models/guests.go
@@ -3197,7 +3197,7 @@ func (manager *SGuestManager) FetchGuestById(guestId string) *SGuest {
 
 func (self *SGuest) GetSpec(checkStatus bool) *jsonutils.JSONDict {
 	if checkStatus {
-		if !utils.IsInStringArray(self.Status, []string{VM_SCHEDULE_FAILED}) {
+		if utils.IsInStringArray(self.Status, []string{VM_SCHEDULE_FAILED}) {
 			return nil
 		}
 	}
@@ -3209,12 +3209,11 @@ func (self *SGuest) GetSpec(checkStatus bool) *jsonutils.JSONDict {
 	guestdisks := self.GetDisks()
 	diskSpecs := jsonutils.NewArray()
 	for _, guestdisk := range guestdisks {
-		disk := guestdisk.GetDisk()
+		info := guestdisk.ToDiskInfo()
 		diskSpec := jsonutils.NewDict()
-		diskSpec.Set("size", jsonutils.NewInt(int64(disk.DiskSize)))
-		s := disk.GetStorage()
-		diskSpec.Set("backend", jsonutils.NewString(s.StorageType))
-		diskSpec.Set("medium_type", jsonutils.NewString(s.MediumType))
+		diskSpec.Set("size", jsonutils.NewInt(info.Size))
+		diskSpec.Set("backend", jsonutils.NewString(info.Backend))
+		diskSpec.Set("medium_type", jsonutils.NewString(info.MediumType))
 		diskSpecs.Add(diskSpec)
 	}
 	spec.Set("disk", diskSpecs)
@@ -3249,6 +3248,63 @@ func (self *SGuest) GetSpec(checkStatus bool) *jsonutils.JSONDict {
 	return spec
 }
 
+func (manager *SGuestManager) GetSpecIdent(spec *jsonutils.JSONDict) []string {
+	cpuCount, _ := spec.Int("cpu")
+	memSize, _ := spec.Int("mem")
+	memSizeMB, _ := utils.GetSizeMB(fmt.Sprintf("%d", memSize), "M")
+	specKeys := []string{
+		fmt.Sprintf("cpu:%d", cpuCount),
+		fmt.Sprintf("mem:%dM", memSizeMB),
+	}
+
+	countKey := func(kf func(*jsonutils.JSONDict) string, dataArray jsonutils.JSONObject) map[string]int64 {
+		countMap := make(map[string]int64)
+		datas, _ := dataArray.GetArray()
+		for _, data := range datas {
+			key := kf(data.(*jsonutils.JSONDict))
+			if count, ok := countMap[key]; !ok {
+				countMap[key] = 1
+			} else {
+				count++
+				countMap[key] = count
+			}
+		}
+		return countMap
+	}
+
+	kfuncs := map[string]func(*jsonutils.JSONDict) string{
+		"disk": func(data *jsonutils.JSONDict) string {
+			backend, _ := data.GetString("backend")
+			mediumType, _ := data.GetString("medium_type")
+			size, _ := data.Int("size")
+			sizeGB, _ := utils.GetSizeGB(fmt.Sprintf("%d", size), "M")
+			return fmt.Sprintf("disk:%s_%s_%dG", backend, mediumType, sizeGB)
+		},
+		"nic": func(data *jsonutils.JSONDict) string {
+			typ, _ := data.GetString("type")
+			bw, _ := data.Int("bandwidth")
+			return fmt.Sprintf("nic:%s_%dM", typ, bw)
+		},
+		"gpu": func(data *jsonutils.JSONDict) string {
+			vendor, _ := data.GetString("vendor")
+			model, _ := data.GetString("model")
+			return fmt.Sprintf("gpu:%s_%s", vendor, model)
+		},
+	}
+
+	for sKey, kf := range kfuncs {
+		sArrary, err := spec.Get(sKey)
+		if err != nil {
+			log.Errorf("Get key %s array error: %v", sKey, err)
+			continue
+		}
+		for key, count := range countKey(kf, sArrary) {
+			specKeys = append(specKeys, fmt.Sprintf("%sx%d", key, count))
+		}
+	}
+	return specKeys
+}
+
 func (self *SGuest) GetTemplateId() string {
 	guestdisks := self.GetDisks()
 	for _, guestdisk := range guestdisks {
@@ -3294,7 +3350,7 @@ func (self *SGuest) GetShortDesc() *jsonutils.JSONDict {
 		host := self.GetHost()
 		if host != nil {
 			hostSpec := host.GetSpec(false)
-			hostSpecIdent := host.GetSpecIdent(hostSpec)
+			hostSpecIdent := HostManager.GetSpecIdent(hostSpec)
 			spec.Set("host_spec", jsonutils.NewString(strings.Join(hostSpecIdent, "/")))
 		}
 	}
diff --git a/pkg/compute/models/hosts.go b/pkg/compute/models/hosts.go
index 77ef03324a..e31305517b 100644
--- a/pkg/compute/models/hosts.go
+++ b/pkg/compute/models/hosts.go
@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"net/http"
 	"net/url"
+	"sort"
 	"strconv"
 
 	"yunion.io/x/jsonutils"
@@ -19,6 +20,7 @@ import (
 
 	"yunion.io/x/onecloud/pkg/cloudcommon/db"
 	"yunion.io/x/onecloud/pkg/cloudprovider"
+	"yunion.io/x/onecloud/pkg/compute/baremetal"
 	"yunion.io/x/onecloud/pkg/compute/options"
 	"yunion.io/x/onecloud/pkg/httperrors"
 	"yunion.io/x/onecloud/pkg/mcclient"
@@ -518,18 +520,17 @@ func (self *SHost) GetSpec(statusCheck bool) *jsonutils.JSONDict {
 			return nil
 		}
 	}
+	log.Errorf("===***start getspec: %s", self.Id)
 	spec := self.GetHardwareSpecification()
 	spec.Remove("storage_info")
-	netInfo := jsonutils.NewArray()
 	nifs := self.GetNetInterfaces()
+	var nicCount int64
 	for _, nif := range nifs {
-		netDesc := nif.getBaremetalJsonDesc()
-		nicType, err := netDesc.GetString("nic_type")
-		if err != nil && nicType != NIC_TYPE_IPMI {
-			netInfo.Add(netDesc)
+		if nif.NicType != NIC_TYPE_IPMI {
+			nicCount++
 		}
 	}
-	spec.Set("nic_count", jsonutils.NewInt(int64(netInfo.Length())))
+	spec.Set("nic_count", jsonutils.NewInt(nicCount))
 	manufacture, err := self.SysInfo.Get("manufacture")
 	if err != nil {
 		manufacture = jsonutils.NewString("Unknown")
@@ -540,12 +541,73 @@ func (self *SHost) GetSpec(statusCheck bool) *jsonutils.JSONDict {
 		model = jsonutils.NewString("Unknown")
 	}
 	spec.Set("model", model)
-	return nil
+	return spec
 }
 
-func (self *SHost) GetSpecIdent(spec *jsonutils.JSONDict) []string {
-	// Todo
-	return []string{}
+func (manager *SHostManager) GetSpecIdent(spec *jsonutils.JSONDict) []string {
+	nCpu, _ := spec.Int("cpu")
+	memSize, _ := spec.Int("mem")
+	memGB, err := utils.GetSizeGB(fmt.Sprintf("%d", memSize), "M")
+	if err != nil {
+		log.Errorf("Get mem size %d GB error: %v", memSize, err)
+	}
+	nicCount, _ := spec.Int("nic_count")
+	manufacture, _ := spec.GetString("manufacture")
+	model, _ := spec.GetString("model")
+
+	specKeys := []string{
+		fmt.Sprintf("cpu:%d", nCpu),
+		fmt.Sprintf("mem:%dG", memGB),
+		fmt.Sprintf("nic:%d", nicCount),
+		fmt.Sprintf("manufacture:%s", manufacture),
+		fmt.Sprintf("model:%s", model),
+	}
+	diskSpec, _ := spec.Get("disk")
+	if diskSpec != nil {
+		driverSpecs, _ := diskSpec.GetMap()
+		for driver, driverSpec := range driverSpecs {
+			specKeys = append(specKeys, parseDiskDriverSpec(driver, driverSpec)...)
+		}
+	}
+	sort.Strings(specKeys)
+	return specKeys
+}
+
+func parseDiskDriverSpec(driver string, spec jsonutils.JSONObject) []string {
+	ret := make([]string, 0)
+	adapterSpecs, _ := spec.GetMap()
+	for adapterKey, adapterSpec := range adapterSpecs {
+		for _, diskType := range []string{baremetal.HDD_DISK_SPEC_TYPE, baremetal.SSD_DISK_SPEC_TYPE} {
+			sizeCountMap, _ := adapterSpec.GetMap(diskType)
+			if sizeCountMap == nil {
+				continue
+			}
+			for size, count := range sizeCountMap {
+				sizeGB, _ := utils.GetSizeGB(size, "M")
+				diskKey := fmt.Sprintf("disk:%s_%s_%s_%dGx%s", driver, adapterKey, diskType, sizeGB, count)
+				ret = append(ret, diskKey)
+			}
+		}
+	}
+	return ret
+}
+
+func GetDiskSpecV2(storageInfo jsonutils.JSONObject) jsonutils.JSONObject {
+	storages := []baremetal.BaremetalStorage{}
+	err := storageInfo.Unmarshal(&storages)
+	if err != nil {
+		log.Errorf("Unmarshal to baremetal storage error: %v", err)
+		return nil
+	}
+	refStorages := func() []*baremetal.BaremetalStorage {
+		ret := make([]*baremetal.BaremetalStorage, len(storages))
+		for i, s := range storages {
+			ret[i] = &s
+		}
+		return ret
+	}()
+	diskSpec := baremetal.GetDiskSpecV2(refStorages)
+	return jsonutils.Marshal(diskSpec)
 }
 
 func (self *SHost) GetHardwareSpecification() *jsonutils.JSONDict {
@@ -1640,4 +1702,4 @@ func (self *SHost) GetLocalStoragecache() *SStoragecache {
 		}
 	}
 	return nil
-}
\ No newline at end of file
+}
diff --git a/pkg/compute/models/isolated_devices.go b/pkg/compute/models/isolated_devices.go
index d88332cf5c..cbf243a769 100644
--- a/pkg/compute/models/isolated_devices.go
+++ b/pkg/compute/models/isolated_devices.go
@@ -381,8 +381,8 @@ func (self *SIsolatedDevice) getDesc() *jsonutils.JSONDict {
 	return desc
 }
 
-func (self *SIsolatedDevice) GetSpec(checkStatus bool) *jsonutils.JSONDict {
-	if checkStatus {
+func (self *SIsolatedDevice) GetSpec(statusCheck bool) *jsonutils.JSONDict {
+	if statusCheck {
 		if len(self.GuestId) > 0 {
 			return nil
 		}
@@ -399,6 +399,19 @@ func (self *SIsolatedDevice) GetSpec(checkStatus bool) *jsonutils.JSONDict {
 	return spec
 }
 
+func (man *SIsolatedDeviceManager) GetSpecIdent(spec *jsonutils.JSONDict) []string {
+	log.Errorf("gpu get specIdent: %s", spec)
+	devType, _ := spec.GetString("dev_type")
+	vendor, _ := spec.GetString("vendor")
+	model, _ := spec.GetString("model")
+	keys := []string{
+		fmt.Sprintf("type:%s", devType),
+		fmt.Sprintf("vendor:%s", vendor),
+		fmt.Sprintf("model:%s", model),
+	}
+	return keys
+}
+
 func (self *SIsolatedDevice) GetShortDesc() *jsonutils.JSONDict {
 	desc := self.getDesc()
 	desc.Add(jsonutils.NewString(self.Keyword()), "res_name")
diff --git a/pkg/compute/models/netinterfaces.go b/pkg/compute/models/netinterfaces.go
index 5275af03b6..6562deeae6 100644
--- a/pkg/compute/models/netinterfaces.go
+++ b/pkg/compute/models/netinterfaces.go
@@ -162,6 +162,9 @@ func (self *SNetInterface) getServerJsonDesc() *jsonutils.JSONDict {
 
 func (self *SNetInterface) getBaremetalJsonDesc() *jsonutils.JSONDict {
 	bn := self.GetBaremetalNetwork()
+	if bn == nil {
+		return nil
+	}
 	return self.toJson(bn.IpAddr, bn.GetNetwork())
 }
 
diff --git a/pkg/compute/specs/handler.go b/pkg/compute/specs/handler.go
new file mode 100644
index 0000000000..bb219c34e6
--- /dev/null
+++ b/pkg/compute/specs/handler.go
@@ -0,0 +1,178 @@
+package specs
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"reflect"
+	"sort"
+	"strings"
+
+	"yunion.io/x/jsonutils"
+	"yunion.io/x/log"
+
+	"yunion.io/x/onecloud/pkg/appsrv"
+	"yunion.io/x/onecloud/pkg/cloudcommon/db"
+	"yunion.io/x/onecloud/pkg/compute/models"
+	"yunion.io/x/onecloud/pkg/httperrors"
+	"yunion.io/x/onecloud/pkg/mcclient"
+	"yunion.io/x/onecloud/pkg/mcclient/auth"
+)
+
+type sModelManagersMap map[string]ISpecModelManager
+
+func (m sModelManagersMap) Add(mans ...ISpecModelManager) sModelManagersMap {
+	for _, man := range mans {
+		m[man.KeywordPlural()] = man
+	}
+	return m
+}
+
+var modelManagerMap sModelManagersMap
+
+func init() {
+	modelManagerMap = make(map[string]ISpecModelManager)
+	modelManagerMap.Add(models.HostManager, models.IsolatedDeviceManager, models.GuestManager)
+}
+
+type ISpecModelManager interface {
+	db.IStandaloneModelManager
+	GetSpecIdent(spec *jsonutils.JSONDict) []string
+}
+
+type ISpecModel interface {
+	db.IStandaloneModel
+	GetSpec(statusCheck bool) *jsonutils.JSONDict
+}
+
+type specHandleFunc func(context context.Context, userCred mcclient.TokenCredential, query *jsonutils.JSONDict) (*jsonutils.JSONDict, error)
+
+func AddSpecHandler(prefix string, app *appsrv.Application) {
+	for key, handleF := range map[string]specHandleFunc{
+		"":                 AllModelSpecsHandler,
+		"hosts":            GetHostSpecs,
+		"isolated_devices": GetIsolatedDeviceSpecs,
+		"servers":          GetServerSpecs,
+	} {
+		addHandler(prefix, key, handleF, app)
+	}
+}
+
+func processFilter(handleFunc specHandleFunc) appsrv.FilterHandler {
+	return func(ctx context.Context, w http.ResponseWriter, r *http.Request) {
+		userCred := auth.FetchUserCredential(ctx)
+		query, err := jsonutils.ParseQueryString(r.URL.RawQuery)
+		if err != nil {
+			httperrors.GeneralServerError(w, err)
+			return
+		}
+		spec, err := handleFunc(ctx, userCred, query.(*jsonutils.JSONDict))
+		if err != nil {
+			httperrors.GeneralServerError(w, err)
+			return
+		}
+		ret := jsonutils.NewDict()
+		ret.Add(spec, "spec")
+		appsrv.SendJSON(w, ret)
+	}
+}
+
+func addHandler(prefix, managerPluralKey string, handleFunc specHandleFunc, app *appsrv.Application) {
+	af := auth.Authenticate(processFilter(handleFunc))
+	name := "get_spec"
+	prefix = fmt.Sprintf("%s/specs", prefix)
+	if len(managerPluralKey) != 0 {
+		prefix = fmt.Sprintf("%s/%s", prefix, managerPluralKey)
+		name = fmt.Sprintf("get_%s_spec", managerPluralKey)
+	}
+	app.AddHandler2("GET", prefix, af, nil, name, nil)
+}
+
+func AllModelSpecsHandler(ctx context.Context, userCred mcclient.TokenCredential, query *jsonutils.JSONDict) (*jsonutils.JSONDict, error) {
+	ret := jsonutils.NewDict()
+	for keyword, man := range modelManagerMap {
+		spec, err := getModelSpecs(man, ctx, userCred, query)
+		if err != nil {
+			return nil, err
+		}
+		ret.Add(spec, keyword)
+	}
+	return ret, nil
+}
+
+func listItems(manager db.IModelManager, ctx context.Context, userCred mcclient.TokenCredential, queryDict *jsonutils.JSONDict) ([]db.IModel, error) {
+	q := manager.Query()
+	queryDict, err := manager.ValidateListConditions(ctx, userCred, queryDict)
+	if err != nil {
+		return nil, err
+	}
+	q, err = db.ListItemQueryFilters(manager, ctx, q, userCred, queryDict)
+	if err != nil {
+		return nil, err
+	}
+	rows, err := q.Rows()
+	if err != nil {
+		return nil, err
+	}
+	items := make([]db.IModel, 0)
+	for rows.Next() {
+		item, err := db.NewModelObject(manager)
+		if err != nil {
+			return nil, err
+		}
+		itemInitValue := reflect.Indirect(reflect.ValueOf(item))
+		item, err = db.NewModelObject(manager)
+		if err != nil {
+			return nil, err
+		}
+		itemValue := reflect.Indirect(reflect.ValueOf(item))
+		itemValue.Set(itemInitValue)
+		err = q.Row2Struct(rows, item)
+		if err != nil {
+			return nil, err
+		}
+		items = append(items, item)
+	}
+	return items, err
+}
+
+func GetHostSpecs(ctx context.Context, userCred mcclient.TokenCredential, query *jsonutils.JSONDict) (*jsonutils.JSONDict, error) {
+	return getModelSpecs(models.HostManager, ctx, userCred, query)
+}
+
+func GetIsolatedDeviceSpecs(ctx context.Context, userCred mcclient.TokenCredential, query *jsonutils.JSONDict) (*jsonutils.JSONDict, error) {
+	return getModelSpecs(models.IsolatedDeviceManager, ctx, userCred, query)
+}
+
+func GetServerSpecs(ctx context.Context, userCred mcclient.TokenCredential, query *jsonutils.JSONDict) (*jsonutils.JSONDict, error) {
+	return getModelSpecs(models.GuestManager, ctx, userCred, query)
+}
+
+func getModelSpecs(manager ISpecModelManager, ctx context.Context, userCred mcclient.TokenCredential, query *jsonutils.JSONDict) (*jsonutils.JSONDict, error) {
+	items, err := listItems(manager, ctx, userCred, query)
+	if err != nil {
+		return nil, err
+	}
+	retDict := jsonutils.NewDict()
+	for _, obj := range items {
+		specObj := obj.(ISpecModel)
+		spec := specObj.GetSpec(true)
+		if spec == nil {
+			continue
+		}
+		log.Errorf("=========get %s spec: %s", specObj.GetShortDesc(), spec)
+		specKeys := manager.GetSpecIdent(spec)
+		sort.Strings(specKeys)
+		specKey := strings.Join(specKeys, "/")
+		if oldSpec, _ := retDict.Get(specKey); oldSpec == nil {
+			spec.Add(jsonutils.NewInt(1), "count")
+			retDict.Add(spec, specKey)
+		} else {
+			count, _ := oldSpec.Int("count")
+			oldSpec.(*jsonutils.JSONDict).Set("count", jsonutils.NewInt(count+1))
+			retDict.Set(specKey, oldSpec)
+		}
+	}
+	log.Errorf("========ret specdict: %s", retDict)
+	return retDict, nil
+}
diff --git a/pkg/scheduler/algorithm/predicates/baremetal/storage_predicate.go b/pkg/scheduler/algorithm/predicates/baremetal/storage_predicate.go
index 9887628b77..2abf7694c4 100644
--- a/pkg/scheduler/algorithm/predicates/baremetal/storage_predicate.go
+++ b/pkg/scheduler/algorithm/predicates/baremetal/storage_predicate.go
@@ -3,10 +3,10 @@ package baremetal
 import (
 	"fmt"
 
-	//"yunion.io/x/log"
+	"yunion.io/x/onecloud/pkg/compute/baremetal"
 	"yunion.io/x/onecloud/pkg/scheduler/algorithm/predicates"
+	"yunion.io/x/onecloud/pkg/scheduler/api"
 	"yunion.io/x/onecloud/pkg/scheduler/core"
-	"yunion.io/x/onecloud/pkg/scheduler/util/baremetal"
 )
 
 type StoragePredicate struct {
@@ -21,6 +21,27 @@ func (p *StoragePredicate) Clone() core.FitPredicate {
 	return &StoragePredicate{}
 }
 
+func toBaremetalDisks(disks []*api.Disk) []*baremetal.Disk {
+	ret := make([]*baremetal.Disk, len(disks))
+	for i, disk := range disks {
+		ret[i] = &baremetal.Disk{
+			Backend:         disk.Backend,
+			ImageID:         disk.ImageID,
+			Fs:              disk.Fs,
+			Os:              disk.Os,
+			OSDistribution:  disk.OSDistribution,
+			Format:          disk.Format,
+			MountPoint:      disk.MountPoint,
+			Driver:          disk.Driver,
+			Cache:           disk.Cache,
+			ImageDiskFormat: disk.ImageDiskFormat,
+			Size:            disk.Size,
+			Storage:         disk.Storage,
+		}
+	}
+	return ret
+}
+
 func (p *StoragePredicate) Execute(u *core.Unit, c core.Candidater) (bool, []core.PredicateFailureReason, error) {
 	h := predicates.NewPredicateHelper(p, u, c)
 	schedData := u.SchedData()
@@ -35,7 +56,7 @@ func (p *StoragePredicate) Execute(u *core.Unit, c core.Candidater) (bool, []cor
 		candidate.Storages,
 	)
 
-	if err == nil && baremetal.CheckDisksAllocable(layouts, schedData.Disks) {
+	if err == nil && baremetal.CheckDisksAllocable(layouts, toBaremetalDisks(schedData.Disks)) {
 		h.SetCapacity(int64(1))
 	} else {
 		h.SetCapacity(int64(0))
diff --git a/pkg/scheduler/api/sched.go b/pkg/scheduler/api/sched.go
index 85a7017066..96dc3560d6 100644
--- a/pkg/scheduler/api/sched.go
+++ b/pkg/scheduler/api/sched.go
@@ -9,8 +9,10 @@ import (
 	"github.com/bitly/go-simplejson"
 
 	"yunion.io/x/log"
-	o "yunion.io/x/onecloud/cmd/scheduler/options"
 	"yunion.io/x/pkg/utils"
+
+	o "yunion.io/x/onecloud/cmd/scheduler/options"
+	"yunion.io/x/onecloud/pkg/compute/baremetal"
 )
 
 type Meta map[string]string
@@ -98,7 +100,7 @@ type SchedData struct {
 	GroupRelations []GroupRelation `json:"group_relations"`
 
 	// baremental
-	BaremetalDiskConfigs []*BaremetalDiskConfig `json:"baremetal_disk_config"`
+	BaremetalDiskConfigs []*baremetal.BaremetalDiskConfig `json:"baremetal_disk_config"`
 }
 
 func NewSchedData(sjson *simplejson.Json, count int64, byTest bool) (*SchedData, error) {
@@ -543,8 +545,8 @@ func newDiskFromSimpleJson(sjson *simplejson.Json, byTest bool) (*Disk, error) {
 	return disk, nil
 }
 
-func newBaremetalDiskConfigFromSimpleJson(sjson *simplejson.Json) (*BaremetalDiskConfig, error) {
-	baremetalDiskConfig := new(BaremetalDiskConfig)
+func newBaremetalDiskConfigFromSimpleJson(sjson *simplejson.Json) (*baremetal.BaremetalDiskConfig, error) {
+	baremetalDiskConfig := new(baremetal.BaremetalDiskConfig)
 	baremetalDiskConfig.Count = sjson.Get("count").MustInt64()
 	baremetalDiskConfig.Conf = sjson.Get("conf").MustString()
 
@@ -597,13 +599,13 @@ func (d *SchedData) fillDisksInfo(sjson *simplejson.Json, byTest bool) error {
 }
 
 func (d *SchedData) fillBaremetalDiskConfig(sjson *simplejson.Json) error {
-	baremetalDiskConfigs := []*BaremetalDiskConfig{}
+	baremetalDiskConfigs := []*baremetal.BaremetalDiskConfig{}
 	if d.Hypervisor != HostTypeBaremetal {
 		return nil
 	}
 	config, ok := sjson.CheckGet("baremetal_disk_config")
 	if !ok {
-		defaultConfs := []*BaremetalDiskConfig{&BaremetalDefaultDiskConfig}
+		defaultConfs := []*baremetal.BaremetalDiskConfig{&baremetal.BaremetalDefaultDiskConfig}
 		d.BaremetalDiskConfigs = defaultConfs
 		log.V(4).Warningf("No baremetal_disk_config info found in json, use default baremetal disk config: %#v", defaultConfs)
 		return nil
diff --git a/pkg/scheduler/api/types.go b/pkg/scheduler/api/types.go
index 579f45491c..29eec7b76d 100644
--- a/pkg/scheduler/api/types.go
+++ b/pkg/scheduler/api/types.go
@@ -24,31 +24,6 @@ const (
 	AggregateStrategyPrefer  = "prefer"
 	AggregateStrategyAvoid   = "avoid"
 
-	// Baremetal related const
-	DISK_CONF_RAID0  = "raid0"
-	DISK_CONF_RAID1  = "raid1"
-	DISK_CONF_RAID5  = "raid5"
-	DISK_CONF_RAID10 = "raid10"
-	DISK_CONF_NONE   = "none"
-
-	DEFAULT_DISK_CONF = DISK_CONF_NONE
-
-	DISK_TYPE_ROTATE = "rotate"
-	DISK_TYPE_SSD    = "ssd"
-	DISK_TYPE_HYBRID = "hybrid"
-
-	DEFAULT_DISK_TYPE = DISK_TYPE_ROTATE
-
-	DISK_DRIVER_MEGARAID   = "MegaRaid"
-	DISK_DRIVER_LINUX      = "Linux"
-	DISK_DRIVER_HPSARAID   = "HPSARaid"
-	DISK_DRIVER_MPT2SAS    = "Mpt2SAS"
-	DISK_DRIVER_MARVELRAID = "MarvelRaid"
-	DISK_DRIVER_PCIE       = "PCIE"
-
-	HDD_DISK_SPEC_TYPE = "HDD"
-	SSD_DISK_SPEC_TYPE = "SSD"
-
 	// passthrough device type
 	DIRECT_PCI_TYPE = "PCI"
 	GPU_HPC_TYPE    = "GPU-HPC"
@@ -75,12 +50,6 @@ var (
 		HostTypeAliyun,
 	)
 
-	BaremetalDefaultDiskConfig = BaremetalDiskConfig{
-		Type:  DISK_TYPE_HYBRID,
-		Conf:  DISK_CONF_NONE,
-		Count: 0,
-	}
-
 	ValidGpuTypes = sets.NewString(
 		GPU_HPC_TYPE,
 		GPU_VGA_TYPE,
@@ -112,34 +81,3 @@ func AggregateStrategyCheck(strategy string) (err error) {
 	}
 	return
 }
-
-type BaremetalStorage struct {
-	Slot         int    `json:"slot"`
-	Status       string `json:"status"`
-	Rotate       bool   `json:"rotate"`
-	Adapter      int    `json:"adapter"`
-	Driver       string `json:"driver"`
-	Model        string `json:"model"`
-	Enclosure    int    `json:"enclousure"`
-	Size         int64  `json:"size"`
-	MinStripSize int64  `json:"min_strip_size,omitempty"`
-	MaxStripSize int64  `json:"max_strip_size,omitempty"`
-	Index        int64  `json:"index"`
-}
-
-type BaremetalDiskConfig struct {
-	// disk type
-	Type string `json:"type"`
-	// raid config
-	Conf         string  `json:"conf"`
-	Count        int64   `json:"count"`
-	Range        []int64 `json:"range"`
-	Splits       string  `json:"splits"`
-	Adapter      *int    `json:"adapter"`
-	Driver       string  `json:"driver"`
-	Cachedbadbbu bool    `json:"cachedbadbbu"`
-	Strip        int64   `json:"strip"`
-	RA           bool    `json:"ra"`
-	WT           bool    `json:"wt"`
-	Direct       bool    `json:"direct"`
-}
diff --git a/pkg/scheduler/cache/candidate/baremetals.go b/pkg/scheduler/cache/candidate/baremetals.go
index f7b584b242..56c7c99931 100644
--- a/pkg/scheduler/cache/candidate/baremetals.go
+++ b/pkg/scheduler/cache/candidate/baremetals.go
@@ -8,7 +8,7 @@ import (
 	fjson "github.com/json-iterator/go"
 
 	"yunion.io/x/log"
-	"yunion.io/x/onecloud/pkg/scheduler/api"
+	"yunion.io/x/onecloud/pkg/compute/baremetal"
 	"yunion.io/x/onecloud/pkg/scheduler/cache"
 	"yunion.io/x/onecloud/pkg/scheduler/cache/db"
 	"yunion.io/x/onecloud/pkg/scheduler/core"
@@ -18,12 +18,12 @@ import (
 type BaremetalDesc struct {
 	baseHostDesc
 
-	Storages      []*api.BaremetalStorage `json:"storages"`
-	StorageType   string                  `json:"storage_type"`
-	StorageSize   int64                   `json:"storage_size"`
-	StorageInfo   string                  `json:"storage_info"`
-	StorageDriver string                  `json:"storage_driver"`
-	ServerID      string                  `json:"server_id"`
+	Storages      []*baremetal.BaremetalStorage `json:"storages"`
+	StorageType   string                        `json:"storage_type"`
+	StorageSize   int64                         `json:"storage_size"`
+	StorageInfo   string                        `json:"storage_info"`
+	StorageDriver string                        `json:"storage_driver"`
+	ServerID      string                        `json:"server_id"`
 }
 
 type BaremetalBuilder struct {
@@ -234,7 +234,7 @@ func (bb *BaremetalBuilder) buildOne(bm *models.Host) (interface{}, error) {
 	desc.HostType = bm.HostType
 	desc.IsBaremetal = bm.IsBaremetal
 
-	var baremetalStorages []*api.BaremetalStorage
+	var baremetalStorages []*baremetal.BaremetalStorage
 	err := fjson.Unmarshal([]byte(bm.StorageInfo), &baremetalStorages)
 	if err != nil {
 		// StorageInfo maybe is NULL
diff --git a/pkg/scheduler/util/baremetal/doc.go b/pkg/scheduler/util/baremetal/doc.go
deleted file mode 100644
index 90d29465b6..0000000000
--- a/pkg/scheduler/util/baremetal/doc.go
+++ /dev/null
@@ -1 +0,0 @@
-package baremetal // import "yunion.io/x/onecloud/pkg/scheduler/util/baremetal"
diff --git a/vendor/yunion.io/x/pkg/utils/misc.go b/vendor/yunion.io/x/pkg/utils/misc.go
index e335a62ff4..b79264d6ea 100644
--- a/vendor/yunion.io/x/pkg/utils/misc.go
+++ b/vendor/yunion.io/x/pkg/utils/misc.go
@@ -486,6 +486,14 @@ func GetBytes(sizeStr string) (int64, error) {
 	return GetSize(sizeStr, "", 1024)
 }
 
+func GetSizeGB(sizeStr, defaultSize string) (int64, error) {
+	bytes, err := GetSizeBytes(sizeStr, defaultSize)
+	if err != nil {
+		return 0, err
+	}
+	return bytes / 1024 / 1024 / 1024, nil
+}
+
 func GetSizeMB(sizeStr, defaultSize string) (int64, error) {
 	bytes, err := GetSizeBytes(sizeStr, defaultSize)
 	if err != nil {