diff --git a/pkg/compute/guestdrivers/nutanix.go b/pkg/compute/guestdrivers/nutanix.go
index 13788c28e8..1885bb787b 100644
--- a/pkg/compute/guestdrivers/nutanix.go
+++ b/pkg/compute/guestdrivers/nutanix.go
@@ -16,8 +16,11 @@ package guestdrivers
 
 import (
 	"context"
+	"fmt"
 	"time"
 
+	"yunion.io/x/pkg/utils"
+
 	api "yunion.io/x/onecloud/pkg/apis/compute"
 	"yunion.io/x/onecloud/pkg/cloudcommon/db/quotas"
 	"yunion.io/x/onecloud/pkg/cloudcommon/db/taskman"
@@ -144,6 +147,16 @@ func (self *SNutanixGuestDriver) GetDeployStatus() ([]string, error) {
 	return []string{api.VM_READY}, nil
 }
 
+func (self *SNutanixGuestDriver) 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 disk.DiskSize/1024%1 > 0 {
+		return fmt.Errorf("Resize disk size must be an integer multiple of 1G")
+	}
+	return nil
+}
+
 func (self *SNutanixGuestDriver) ValidateCreateEip(ctx context.Context, userCred mcclient.TokenCredential, input api.ServerCreateEipInput) error {
 	return httperrors.NewInputParameterError("%s not support create eip", self.GetHypervisor())
 }
diff --git a/pkg/multicloud/nutanix/host.go b/pkg/multicloud/nutanix/host.go
index a6bacdaf38..67378397fb 100644
--- a/pkg/multicloud/nutanix/host.go
+++ b/pkg/multicloud/nutanix/host.go
@@ -299,7 +299,7 @@ func (self *SHost) CreateVM(opts *cloudprovider.SManagedVMCreateConfig) (cloudpr
 				"disk_address": map[string]string{
 					"vmdisk_uuid": image.VMDiskID,
 				},
-				"minimum_size": image.VMDiskSize,
+				"minimum_size": opts.SysDisk.SizeGB * 1024 * 1024 * 1024,
 			},
 		},
 	}