Setup: 10.2.0.4 64-bit RHEL 3 node RAC node1 is requesting blocks for a transaction - either node2 or node3 is holding the block(s) that are being requested. How can I determine which node(s) of the cluster are holding the requested block(s)? Regards, Chris Taylor Oracle DBA Parallon IT&S christopher.taylor2@xxxxxxxxxxxx<mailto:christopher.taylor2@xxxxxxxxxxxx> www.parallon.net -- //www.freelists.org/webpage/oracle-l