diff --git a/src/store/reducers/storage/utils.ts b/src/store/reducers/storage/utils.ts
index a9146d746..af3079bc3 100644
--- a/src/store/reducers/storage/utils.ts
+++ b/src/store/reducers/storage/utils.ts
@@ -16,7 +16,11 @@ import type {PreparedStorageGroup, PreparedStorageNode, PreparedStorageResponse}
 
 // ==== Constants  ====
 
-const FLAGS_POINTS = {
+// Do not count Grey and Blue statuses in used space severity calculations
+const FLAGS_POINTS: Record<EFlag, number> = {
+    [EFlag.Grey]: 0,
+    [EFlag.Blue]: 0,
+
     [EFlag.Green]: 1,
     [EFlag.Yellow]: 100,
     [EFlag.Orange]: 10_000,
@@ -74,7 +78,7 @@ const prepareStorageGroupData = (
                 missing += 1;
             }
 
-            if (DiskSpace && DiskSpace !== EFlag.Grey) {
+            if (DiskSpace) {
                 usedSpaceFlag += FLAGS_POINTS[DiskSpace];
             }
 
diff --git a/src/types/api/enums.ts b/src/types/api/enums.ts
index e9c8224f2..5eddd1090 100644
--- a/src/types/api/enums.ts
+++ b/src/types/api/enums.ts
@@ -4,6 +4,7 @@
 export enum EFlag {
     Grey = 'Grey',
     Green = 'Green',
+    Blue = 'Blue',
     Yellow = 'Yellow',
     Orange = 'Orange',
     Red = 'Red',
diff --git a/src/utils/disks/constants.ts b/src/utils/disks/constants.ts
index e4a93bf4f..7c4ce9faf 100644
--- a/src/utils/disks/constants.ts
+++ b/src/utils/disks/constants.ts
@@ -3,7 +3,7 @@ import {TPDiskState} from '../../types/api/pdisk';
 import {EVDiskState} from '../../types/api/vdisk';
 
 // state to numbers to allow ordinal comparison
-export const DISK_COLOR_STATE_TO_NUMERIC_SEVERITY: Record<EFlag | 'Blue', number> = {
+export const DISK_COLOR_STATE_TO_NUMERIC_SEVERITY: Record<EFlag, number> = {
     Grey: 0,
     Green: 1,
     Blue: 2,