diff --git a/br/pkg/lightning/backend/local/local.go b/br/pkg/lightning/backend/local/local.go
index ae9f3b52ce7d6..a4b0450c7d723 100644
--- a/br/pkg/lightning/backend/local/local.go
+++ b/br/pkg/lightning/backend/local/local.go
@@ -1428,6 +1428,11 @@ func checkDiskAvail(ctx context.Context, store *pdhttp.StoreInfo) error {
 			zap.String("capacity", store.Status.Capacity), zap.Error(err))
 		return nil
 	}
+	if capacity <= 0 {
+		// PD will return a zero value StoreInfo if heartbeat is not received after
+		// startup, skip temporarily.
+		return nil
+	}
 	available, err := units.RAMInBytes(store.Status.Available)
 	if err != nil {
 		logger.Warn("failed to parse available",
diff --git a/br/pkg/lightning/backend/local/local_test.go b/br/pkg/lightning/backend/local/local_test.go
index 780d3c621dcd5..f45d6324b82f1 100644
--- a/br/pkg/lightning/backend/local/local_test.go
+++ b/br/pkg/lightning/backend/local/local_test.go
@@ -2386,4 +2386,9 @@ func TestCheckDiskAvail(t *testing.T) {
 	ctx := context.Background()
 	err := checkDiskAvail(ctx, store)
 	require.NoError(t, err)
+
+	// pd may return this StoreInfo before the store reports heartbeat
+	store = &http.StoreInfo{Status: http.StoreStatus{LeaderWeight: 1.0, RegionWeight: 1.0}}
+	err = checkDiskAvail(ctx, store)
+	require.NoError(t, err)
 }