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RAC Networking Lab

RAC Networking Lab. 1. Edit your tnsnames.ora file. In notepad or wordpad, open the file C:oracleproduct10.2.0db_1NETWORKADMINtnsnames.ora For the Service name you created at install time, review the settings for TAF. Add the “(ENABLE = BROKEN)” line below the Description line

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RAC Networking Lab

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  1. RAC Networking Lab

  2. 1. Edit your tnsnames.ora file • In notepad or wordpad, open the file C:\oracle\product\10.2.0\db_1\NETWORK\ADMIN\tnsnames.ora • For the Service name you created at install time, review the settings for TAF. • Add the “(ENABLE = BROKEN)” line below the Description line • Edit on both cluster nodes • Test your ability to login to the database with sqlplus (on the server) using your service name, i.e. • sqlplus system@MSnDB • sqlplus system@MSnDB1 • Sqlplus system@MSnDB_SVC

  3. 2. Test TAF Failover • Open two Command Prompt windows • In the first window, log into sqlplus with the service name, i.e • Sqlplus system@MSnDB_SVC • Run the following query: • Select instance_name from v$instance; • In the other window, shut down the instance shown in the query result • Srvctl stop instance –d MSnDB –i MSnDB1 • Repeat the query in the sqlplus session • The instance should have changed

  4. 2. Test TAF Failover • Optional - • Restart all instances • Repeat the exercise, but this time reboot the node of the instance in the query • TCP/IP registry parameters may have to be edited for optimal failover time.

  5. 3. Client Networking • Locate your client (desktop) tnsnames.ora file • Copy in the contents of your server side tnsnames.ora file • Omit the local and remote listener lines • Test connectivity to your database • Test TAF failover from the client • Edit the client tnsnames.ora file to add access to a different class database • Test connectivity to the alternate database

  6. 4. Networking Monitoring Demo • Your instructor will demonstrate using ttcp to test network throughput for the private interconnect

  7. © 2005 Microsoft Corporation. All rights reserved. This presentation is for informational purposes only. Microsoft makes no warranties, express or implied, in this summary.

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