diff --git a/persistent-volumes/claims/claim-01.yaml b/persistent-volumes/claims/claim-01.yaml
index cb0a2abb..3c69d2e1 100644
--- a/persistent-volumes/claims/claim-01.yaml
+++ b/persistent-volumes/claims/claim-01.yaml
@@ -7,4 +7,4 @@ spec:
     - ReadWriteOnce
   resources:
     requests:
-      storage: 3
+      storage: 3Gi
diff --git a/persistent-volumes/claims/claim-02.yaml b/persistent-volumes/claims/claim-02.yaml
index 134ae4cf..48d48070 100644
--- a/persistent-volumes/claims/claim-02.yaml
+++ b/persistent-volumes/claims/claim-02.yaml
@@ -7,4 +7,4 @@ spec:
     - ReadWriteOnce
   resources:
     requests:
-      storage: 8
+      storage: 8Gi
diff --git a/persistent-volumes/volumes/gce.yaml b/persistent-volumes/volumes/gce.yaml
index 3e124c59..da3d56ad 100644
--- a/persistent-volumes/volumes/gce.yaml
+++ b/persistent-volumes/volumes/gce.yaml
@@ -4,7 +4,10 @@ metadata:
   name: pv0003
 spec:
   capacity:
-    storage: 10
+    storage: 10Gi
+  accessModes:
+    - ReadWriteOnce
+      ReadOnlyMany
   gcePersistentDisk:
     pdName: "abc123"
     fsType: "ext4"
diff --git a/persistent-volumes/volumes/local-01.yaml b/persistent-volumes/volumes/local-01.yaml
index 105e4393..ce0fe9fb 100644
--- a/persistent-volumes/volumes/local-01.yaml
+++ b/persistent-volumes/volumes/local-01.yaml
@@ -7,5 +7,7 @@ metadata:
 spec:
   capacity:
     storage: 10Gi
+  accessModes:
+    - ReadWriteOnce
   hostPath:
     path: "/tmp/data01"
diff --git a/persistent-volumes/volumes/local-02.yaml b/persistent-volumes/volumes/local-02.yaml
index 1f40d7a0..24bca725 100644
--- a/persistent-volumes/volumes/local-02.yaml
+++ b/persistent-volumes/volumes/local-02.yaml
@@ -7,5 +7,7 @@ metadata:
 spec:
   capacity:
     storage: 5Gi
+  accessModes:
+    - ReadWriteOnce
   hostPath:
     path: "/tmp/data02"