diff --git a/src/kaleidoscope/driver/storage/Base.h b/src/kaleidoscope/driver/storage/Base.h
index a2dae8d0..00cc481a 100644
--- a/src/kaleidoscope/driver/storage/Base.h
+++ b/src/kaleidoscope/driver/storage/Base.h
@@ -25,6 +25,7 @@ namespace storage {
 
 struct BaseProps {
   static constexpr uint16_t length = 0;
+  static constexpr uint8_t uninitialized_byte = 0xff;
 };
 
 template <typename _StorageProps>
@@ -48,6 +49,14 @@ class Base {
 
   void update(int idx, uint8_t val) {}
 
+  bool isSliceUninitialized(uint16_t offset, uint16_t size) {
+    for (uint16_t o = offset; o < offset + size; o++) {
+      if (read(o) != _StorageProps::uninitialized_byte)
+        return false;
+    }
+    return true;
+  }
+
   const uint16_t length() {
     return _StorageProps::length;
   }