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