Our Applications 11i database was of 10.2.0.5 version running over 184.108.40.206 GI, SCAN listeners were running fine then.
(OS is RHEL 5.7). Successfully completed Database upgrade to 220.127.116.11, applied 18.104.22.168.2 PSU to both GI and RDBMS oracle homes without any issues. Registered new database with 22.214.171.124 GI using srvctl.
But After a recent restart of the database for some reason SCAN listener is only listening for Second instance, not the first one.
I have forced the scan registration using
alter system set remote_listener='prodscan.com:1521' scope=both scope='*';
But even then no luck, restarted both the instances and even scan listeners, for some reason auto registration is not happening, not much information in SCAN listener log files.
Both the Listeners SCAN and Local Listeners Should be in the Grid_home/network/admin not in the ORACLE HOME.
If you have created your local listener in both the servers thru grid home..
Paste the O/P of lsnrctl status local listener - on both the nodes. Thank you.