Matt W. Benjamin wrote (Fri Jul 24 2009 15:19:39 GMT+0200 (CEST) ) > Hi Hartmut, > > Does using GetODSDlocation and StoreMini as begin/end I/O RPCs allow use of an opaque identifier to refer to an I/O transaction? Hi Matt, will that be at all necessary, seeing as all write transactions are serialized anyway? Cheers - Felix