Hi Gurus, I have a test rac configured on a linux machine which has 3 instances running. I am trying to test the TAF by crashing one of the instance but client comes up with saying end of communication channel down below is the configuration I am using Can somebody please let me know as to where I have gone wrong Listener configuration LISTENER_ORCL2 = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = linuxtest2pub)(PORT = 1523)) ) SID_LIST_LISTENER_ORCL2 = (SID_LIST = (SID_DESC = (ORACLE_HOME = /opt/oracle/product/9.2.0) (SID_NAME = ORCL2) ) ) LISTENER = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = linuxtest2pub)(PORT = 1521)) ) SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (ORACLE_HOME = /opt/oracle/product/9.2.0) (SID_NAME = ORCL1) ) ) LISTENER_ORCL3 = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = linuxtest2pub)(PORT = 1524)) ) SID_LIST_LISTENER_ORCL3 = (SID_LIST = (SID_DESC = (ORACLE_HOME = /opt/oracle/product/9.2.0) (SID_NAME = ORCL3) ) ) Tnsnames ORCL = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = linuxtest2pub)(PORT = 1523)) (ADDRESS = (PROTOCOL = TCP)(HOST = linuxtest2pub)(PORT = 1521)) (ADDRESS = (PROTOCOL = TCP)(HOST = linuxtest2pub)(PORT = 1524)) (LOAD_BALANCE = yes) ) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl) (failover_mode= (type=select) (mode=basic) (retries=20) (delay=10) ) ) ) Init parameter entries orcl1.local_listener="(address=(protocol=tcp)(host=linuxtest2)(port=1521))" orcl1.remote_listener= "(address=(protocol=tcp)(host=linuxtest2)(port=1521))" orcl2.local_listener="(address=(protocol=tcp)(host=linuxtest2)(port=1523))" orcl2.remote_listener= "(address=(protocol=tcp)(host=linuxtest2)(port=1524))" orcl3.local_listener="(address=(protocol=tcp)(host=linuxtest2)(port=1524))" orcl3.remote_listener="(address=(protocol=tcp)(host=linuxtest2)(port=1523))" The TAF works fine when I use only two instances dont know where I have gone wrong. Thanks in advance. Arun ________________________________________________________________________ Yahoo! India Insurance Special: Be informed on the best policies, services, tools and more. Go to: http://in.insurance.yahoo.com/licspecial/index.html ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------