Hi Oracle Standard RAC 10.2.0.1 Windows 2003 We are having continuos system state dumps: Mon Mar 06 12:57:01 2006 Trace dumping is performing id=[cdmp_20060306125701] System State dumped to trace file e:\oracle\product\10.2.0\admin\labora\bdump\labora1_diag_3376.trc Mon Mar 06 12:57:52 2006 Trace dumping is performing id=[cdmp_20060306125752] System State dumped to trace file e:\oracle\product\10.2.0\admin\labora\bdump\labora1_diag_3376.trc Mon Mar 06 12:58:44 2006 Trace dumping is performing id=[cdmp_20060306125844] System State dumped to trace file e:\oracle\product\10.2.0\admin\labora\bdump\labora1_diag_3376.trc Mon Mar 06 12:59:37 2006 System State dumped to trace file e:\oracle\product\10.2.0\admin\labora\bdump\labora1_diag_3376.trc Mon Mar 06 13:00:28 2006 . It seems nobody are executing any sql that can cause this. This dumps are hanging the server (there are +6GB long) Db is in production.. Thanks