diff --git a/changelog.d/20240518_021532_jacky.lam_helm_defaultstorage.md b/changelog.d/20240518_021532_jacky.lam_helm_defaultstorage.md
new file mode 100644
index 000000000000..8af7d1f9ea78
--- /dev/null
+++ b/changelog.d/20240518_021532_jacky.lam_helm_defaultstorage.md
@@ -0,0 +1,4 @@
+### Fixed
+
+- Helm chart: Add volumeMounts only if defaultStorage is enabled
+  (<https://github.com/cvat-ai/cvat/pull/7911>)
diff --git a/helm-chart/templates/cvat_backend/server/deployment.yml b/helm-chart/templates/cvat_backend/server/deployment.yml
index b94c6de19f88..307cfa96f63d 100644
--- a/helm-chart/templates/cvat_backend/server/deployment.yml
+++ b/helm-chart/templates/cvat_backend/server/deployment.yml
@@ -80,6 +80,7 @@ spec:
             {{- toYaml (omit $localValues.livenessProbe "enabled") | nindent 12 }}
           {{- end }}
           volumeMounts:
+          {{- if .Values.cvat.backend.defaultStorage.enabled }}
           {{- if not .Values.cvat.backend.disableDistinctCachePerService }}
           - mountPath: /home/django/data/cache
             name: cvat-backend-per-service-cache
@@ -96,6 +97,7 @@ spec:
           - mountPath: /home/django/models
             name: cvat-backend-data
             subPath: models
+          {{- end }}
           {{- with concat .Values.cvat.backend.additionalVolumeMounts $localValues.additionalVolumeMounts }}
           {{- toYaml . | nindent 10 }}
           {{- end }}
diff --git a/helm-chart/templates/cvat_backend/utils/deployment.yml b/helm-chart/templates/cvat_backend/utils/deployment.yml
index 434366fecebe..105ef0c36a7d 100644
--- a/helm-chart/templates/cvat_backend/utils/deployment.yml
+++ b/helm-chart/templates/cvat_backend/utils/deployment.yml
@@ -64,6 +64,7 @@ spec:
           {{- $probeConfig := dict "args" $probeArgs "livenessProbe" $.Values.cvat.backend.worker.livenessProbe -}}
           {{ include "cvat.backend.worker.livenessProbe" $probeConfig | indent 10 }}
           volumeMounts:
+          {{- if .Values.cvat.backend.defaultStorage.enabled }}
           {{- if not .Values.cvat.backend.disableDistinctCachePerService }}
           - mountPath: /home/django/data/cache
             name: cvat-backend-per-service-cache
@@ -80,6 +81,7 @@ spec:
           - mountPath: /home/django/models
             name: cvat-backend-data
             subPath: models
+          {{- end }}
           {{- with concat .Values.cvat.backend.additionalVolumeMounts $localValues.additionalVolumeMounts }}
           {{- toYaml . | nindent 10 }}
           {{- end }}
diff --git a/helm-chart/templates/cvat_backend/worker_annotation/deployment.yml b/helm-chart/templates/cvat_backend/worker_annotation/deployment.yml
index 2ccfdfcbb5d7..0cb6ac76bd58 100644
--- a/helm-chart/templates/cvat_backend/worker_annotation/deployment.yml
+++ b/helm-chart/templates/cvat_backend/worker_annotation/deployment.yml
@@ -64,6 +64,7 @@ spec:
           {{- $probeConfig := dict "args" $probeArgs "livenessProbe" $.Values.cvat.backend.worker.livenessProbe -}}
           {{ include "cvat.backend.worker.livenessProbe" $probeConfig | indent 10 }}
           volumeMounts:
+          {{- if .Values.cvat.backend.defaultStorage.enabled }}
           {{- if not .Values.cvat.backend.disableDistinctCachePerService }}
           - mountPath: /home/django/data/cache
             name: cvat-backend-per-service-cache
@@ -83,6 +84,7 @@ spec:
           - mountPath: /home/django/tmp_storage
             name: cvat-backend-data
             subPath: tmp_storage
+          {{- end }}
           {{- with concat .Values.cvat.backend.additionalVolumeMounts $localValues.additionalVolumeMounts }}
           {{- toYaml . | nindent 10 }}
           {{- end }}
diff --git a/helm-chart/templates/cvat_backend/worker_export/deployment.yml b/helm-chart/templates/cvat_backend/worker_export/deployment.yml
index 06211e7b2bf3..7994514e88ac 100644
--- a/helm-chart/templates/cvat_backend/worker_export/deployment.yml
+++ b/helm-chart/templates/cvat_backend/worker_export/deployment.yml
@@ -65,6 +65,7 @@ spec:
           {{- $probeConfig := dict "args" $probeArgs "livenessProbe" $.Values.cvat.backend.worker.livenessProbe -}}
           {{ include "cvat.backend.worker.livenessProbe" $probeConfig | indent 10 }}
           volumeMounts:
+          {{- if .Values.cvat.backend.defaultStorage.enabled }}
           {{- if not .Values.cvat.backend.disableDistinctCachePerService }}
           - mountPath: /home/django/data/cache
             name: cvat-backend-per-service-cache
@@ -84,6 +85,7 @@ spec:
           - mountPath: /home/django/tmp_storage
             name: cvat-backend-data
             subPath: tmp_storage
+          {{- end }}
           {{- with concat .Values.cvat.backend.additionalVolumeMounts $localValues.additionalVolumeMounts }}
           {{- toYaml . | nindent 10 }}
           {{- end }}
diff --git a/helm-chart/templates/cvat_backend/worker_import/deployment.yml b/helm-chart/templates/cvat_backend/worker_import/deployment.yml
index 6172e11ff0af..8b7653e5c638 100644
--- a/helm-chart/templates/cvat_backend/worker_import/deployment.yml
+++ b/helm-chart/templates/cvat_backend/worker_import/deployment.yml
@@ -64,6 +64,7 @@ spec:
           {{- $probeConfig := dict "args" $probeArgs "livenessProbe" $.Values.cvat.backend.worker.livenessProbe -}}
           {{ include "cvat.backend.worker.livenessProbe" $probeConfig | indent 10 }}
           volumeMounts:
+          {{- if .Values.cvat.backend.defaultStorage.enabled }}
           {{- if not .Values.cvat.backend.disableDistinctCachePerService }}
           - mountPath: /home/django/data/cache
             name: cvat-backend-per-service-cache
@@ -83,6 +84,7 @@ spec:
           - mountPath: /home/django/tmp_storage
             name: cvat-backend-data
             subPath: tmp_storage
+          {{- end }}
           {{- with concat .Values.cvat.backend.additionalVolumeMounts $localValues.additionalVolumeMounts }}
           {{- toYaml . | nindent 10 }}
           {{- end }}
diff --git a/helm-chart/values.yaml b/helm-chart/values.yaml
index 59c517bda563..35d9df59b53c 100644
--- a/helm-chart/values.yaml
+++ b/helm-chart/values.yaml
@@ -314,10 +314,12 @@ cvat:
       periodSeconds: 10
       initialDelaySeconds: 30
     defaultStorage:
+      # Note: if you disable defaultStorage, you will need to mount `/home/django/*`
+      # volumes manually under additionalVolumes and additionalVolumeMounts
       enabled: true
-#     storageClassName: default
-#     accessModes:
-#       - ReadWriteOnce
+      # storageClassName: default
+      # accessModes:
+      #   - ReadWriteOnce
       size: 100Gi
 
 postgresql: