diff --git a/include/spdk/blobfs.h b/include/spdk/blobfs.h
index b8c521166..05d5d9990 100644
--- a/include/spdk/blobfs.h
+++ b/include/spdk/blobfs.h
@@ -388,6 +388,17 @@ void spdk_file_set_priority(struct spdk_file *file, uint32_t priority);
  */
 int spdk_file_sync(struct spdk_file *file, struct spdk_io_channel *channel);
 
+/**
+ * Get the unique ID for the file.
+ *
+ * \param file File to get the ID.
+ * \param id ID buffer.
+ * \param size Size of the ID buffer.
+ *
+ * \return the length of ID on success.
+ */
+int spdk_file_get_id(struct spdk_file *file, void *id, size_t size);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/lib/blobfs/blobfs.c b/lib/blobfs/blobfs.c
index 7ac89fa6f..b8cedc41e 100644
--- a/lib/blobfs/blobfs.c
+++ b/lib/blobfs/blobfs.c
@@ -2576,6 +2576,18 @@ spdk_file_close(struct spdk_file *file, struct spdk_io_channel *_channel)
 	return args->rc;
 }
 
+int
+spdk_file_get_id(struct spdk_file *file, void *id, size_t size)
+{
+	if (size < sizeof(spdk_blob_id)) {
+		return -EINVAL;
+	}
+
+	memcpy(id, &file->blobid, sizeof(spdk_blob_id));
+
+	return sizeof(spdk_blob_id);
+}
+
 static void
 cache_free_buffers(struct spdk_file *file)
 {
diff --git a/lib/rocksdb/env_spdk.cc b/lib/rocksdb/env_spdk.cc
index b86f46073..63c979eb9 100644
--- a/lib/rocksdb/env_spdk.cc
+++ b/lib/rocksdb/env_spdk.cc
@@ -308,10 +308,16 @@ public:
 			return Status::IOError(spdk_file_get_name(mFile), strerror(errno));
 		}
 	}
-	virtual size_t GetUniqueId(__attribute__((unused)) char *id,
-				   __attribute__((unused)) size_t max_size) const override
+	virtual size_t GetUniqueId(char *id, size_t max_size) const override
 	{
-		return 0;
+		int rc;
+
+		rc = spdk_file_get_id(mFile, id, max_size);
+		if (rc < 0) {
+			return 0;
+		} else {
+			return rc;
+		}
 	}
 };