I think you will find that cache fusion is only disabled on the files referenced in gc_files_to_locks. Regards Jonathan Lewis http://www.jlcomp.demon.co.uk/faq/ind_faq.html The Co-operative Oracle Users' FAQ http://www.jlcomp.demon.co.uk/seminar.html Optimising Oracle Seminar - schedule updated Sept 19th ----- Original Message ----- From: "biti_rainy" <biti_rainy@xxxxxxxxx> To: <restomi_w@xxxxxxxxx> Cc: "oracle-l" <oracle-l@xxxxxxxxxxxxx> Sent: Thursday, October 21, 2004 6:18 AM Subject: Re: RAC problem, is gc_files_to_locks is needed? hi,tomi wijanto from oracle document Setting this parameter to any value other than the default will disable Cache Fusion processing in Oracle9i Real Application Clusters. -- //www.freelists.org/webpage/oracle-l