Standalone database 11.2.0.1 as a resource in GI 11.2.0.2 on Solaris 10.

Question

Hello, I have an standalone (not RAC) 11.2.0.1 ddbb installed in a 2 nodes GI 11.2.0.2 cluster on Solaris 10. My question is:
Should the ddbb service be registered into the 3 LISTENER_SCANS at the same time or just only one LISTENER_SCAN, the one with the first IP resolved by the DNS?
This is what I am observing: defining remote_listener as SCAN_NAME and starting up the ddbb only registers 1 LISTENER_SCAN which changes everytime ddbb is restarted due to the round robin definition for this entry at the DNS, I guess (for that I had to change SOLARIS nscd configuration on both nodes in order to avoid name caching).
With a 10.2.0.5 ddbb I am defining the three SCAN IP address in the tnsnames.ora for the remote_listener and the 3 LISTENER_SCAN registers the ddbb service. For me this means more availability since in the first scenary if the LISTENER_SCAN that registers the ddbb dies or is stopped there is a lose of service until the listener is restarted os the ddbb changes the remote_listener to register again.
Thanks.

Answer 1

HI,
yes SCAN is a resource from clustered GI (not from GI for single servers).
However in your case a 11.2.0.x database should be able to set the remote listener to the SCAN address, but it has to register with all 3 SCANs.
If it does not, it could be that there is a glitch in the 11.2.0.1 software and you should upgrade.
As a workaround you can do the same like you did for your 10.2. databases (and use the tnsnames entry with the 3 IP adresses of the SCAN).
Regards
Sebastian