diff --git a/src/spaceone/inventory/manager/compute_engine/disk_manager.py b/src/spaceone/inventory/manager/compute_engine/disk_manager.py
index d812af0..e82bdd2 100644
--- a/src/spaceone/inventory/manager/compute_engine/disk_manager.py
+++ b/src/spaceone/inventory/manager/compute_engine/disk_manager.py
@@ -71,13 +71,17 @@ def collect_cloud_service(self, params):
                 google_cloud_monitoring_filters = [
                     {"key": "resource.labels.device_name", "value": disk.get("name")}
                 ]
+
+                in_used_by = self._get_in_used_by(disk.get("users", []))
+
                 disk.update(
                     {
                         "project": secret_data["project_id"],
                         "id": disk_id,
                         "zone": zone,
                         "region": region,
-                        "in_used_by": self._get_in_used_by(disk.get("users", [])),
+                        "in_used_by": in_used_by,
+                        "in_used_by_count_display": len(in_used_by),
                         "source_image_display": self._get_source_image_display(disk),
                         "disk_type": disk_type,
                         "snapshot_schedule": self._get_matched_snapshot_schedule_detail(
@@ -183,7 +187,7 @@ def _get_matched_snapshot_schedule_detail(self, region, disk, resource_policies)
                             "max_retention_days_display": str(
                                 retention.get("maxRetentionDays")
                             )
-                            + " days"
+                                                          + " days"
                         }
                     )
                     policy_schedule = snapshot_schedule_policy.get("schedule", {})
diff --git a/src/spaceone/inventory/metrics/ComputeEngine/Disk/disk_count.yaml b/src/spaceone/inventory/metrics/ComputeEngine/Disk/disk_count.yaml
index 7101cbe..1528bb3 100644
--- a/src/spaceone/inventory/metrics/ComputeEngine/Disk/disk_count.yaml
+++ b/src/spaceone/inventory/metrics/ComputeEngine/Disk/disk_count.yaml
@@ -23,9 +23,11 @@ query_options:
     - key: data.zone
       name: Availability Zone
       search_key: data.zone
+    - key: data.in_used_by_count_display
+      name: In Used By Count
   fields:
     value:
       operator: count
 unit: Count
 namespace_id: ns-google-cloud-ce-disk
-version: '1.1'
\ No newline at end of file
+version: '1.2'
\ No newline at end of file
diff --git a/src/spaceone/inventory/model/compute_engine/disk/data.py b/src/spaceone/inventory/model/compute_engine/disk/data.py
index 7e90bdc..a3ff238 100644
--- a/src/spaceone/inventory/model/compute_engine/disk/data.py
+++ b/src/spaceone/inventory/model/compute_engine/disk/data.py
@@ -106,6 +106,7 @@ class Disk(BaseResource):
     read_throughput = FloatType(serialize_when_none=False)
     write_throughput = FloatType(serialize_when_none=False)
     in_used_by = ListType(StringType(), default=[])
+    in_used_by_count_display = IntType(serialize_when_none=False, default=0)
     source_image_display = StringType(serialize_when_none=False)
     source_image_id = StringType(
         deserialize_from="sourceImageId", serialize_when_none=False