Can you share more details (Application Tier is not pingable)
- Are you able to connect to the Unix server (Application Tier is not pingable ) ?
- tnsping <tns alias> from apps tier to DB tier , works ?
thank you for the reply, I have this IP's
prodebs: 10.40.98 (this one down)
usually, when I had a problem I fix it then bring the Database up from prodnode1 the access to prodebs (10.40.1.98) as "applmgr" and run the scripts to bring up the application and Apache. my problem now I cannot access this prodebs it's unreachable.
You may wish to mask sensitive details (IP address). It could be due to Network/OS issue. Please check with Network & OS Admin.
By the way are they(3 servers) on cluster ?
You may also check OS log (dmesg (OR) var/log/message ) files to get more details. If you do not have access, OS admin would do that.
I don't have a clear view of schema but I'm trying to understand that why this ebs down.
By the way are they(3 servers) on cluster ? yes