X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=STEER%2FaddObjectAndUpdateAOD.C;h=66130f1a8a404134e8737ef8a90ee76313685bcd;hb=774ef12412a0c9087f06ac4c53af382c7a212414;hp=20e7a0f1246664920ec1f32c8ba2ab43c574c630;hpb=a19c5742fae3b5947b40b2f3cf7db5f0361d1cba;p=u%2Fmrichter%2FAliRoot.git

diff --git a/STEER/addObjectAndUpdateAOD.C b/STEER/addObjectAndUpdateAOD.C
index 20e7a0f1246..66130f1a8a4 100644
--- a/STEER/addObjectAndUpdateAOD.C
+++ b/STEER/addObjectAndUpdateAOD.C
@@ -1,9 +1,12 @@
 void addObjectAndUpdateAOD(const char *fileName = "AliAOD.root") {
   // This little macro takes an already created AOD file and adds
   // a new branch to it.
-  // Be aware that if something breaks, the content of the file will 
-  // be essentially lost, meaning WITH THIS UPDATE PROCEDURE YOU 
-  // HAVE THE POWER TO DESTROY DATA!
+  // You need write access to the AOD file, which is generally not 
+  // the case for AOD files available on the GRID/on CAF.
+  // Be aware that if something breaks (lost connection, node goes 
+  // down, ...) the content of the file will be essentially lost, 
+  // meaning: 
+  // WITH THIS UPDATE PROCEDURE YOU HAVE THE POWER TO DESTROY DATA!
   //
   // To read back this data (including the newly updated branch), have
   // a look at $ALICE_ROOT/STEER/ReadAOD.C and add one line