RAC Services

Not the lot you call down in a breakdown but  for Oracle Real Application Cluster.

Running two nodes, collabn1 and collabn2 as virtual machines (could be physical does not matter).

MADRID is a 12c Oracle database with a pluggable database BERLIN.

Added a service BERLIN_SVC with a preferred server instance of MADRID2 i.e. collabn2

Check the service...

[oracle@collabn2 admin]$ srvctl status database -db MADRID -v

Instance MADRID1 is running on node collabn1. Instance status: Open.

Instance MADRID2 is running on node collabn2. Instance status: Open.

[oracle@collabn2 admin]$ srvctl add service -d MADRID -service BERLIN_SVC.RACATTACK -pdb BERLIN -preferred MADRID2

Make sure to start the service and as if by magic, new service on second node.

[oracle@collabn2 admin]$ srvctl start service -service BERLIN_SVC.RACATTACK -db MADRID

[oracle@collabn2 admin]$ srvctl status database -db MADRID -v

Instance MADRID1 is running on node collabn1. Instance status: Open.

Instance MADRID2 is running on node collabn2 with online services BERLIN_SVC.RACATTACK. Instance status: Open.

[oracle@collabn2 admin]$ . oraenv

ORACLE_SID = [+ASM2] ? MADRID

The Oracle base remains unchanged with value /u01/app/oracle

[oracle@collabn2 admin]$ export ORACLE_SID=MADRID2

[oracle@collabn2 admin]$ sqlplus system/racattack

SQL*Plus: Release 12.1.0.2.0 Production on Wed Feb 8 14:26:13 2017

Copyright (c) 1982, 2014, Oracle. All rights reserved.

Last Successful login time: Wed Feb 08 2017 14:04:44 +00:00

Connected to:

Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production

With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,

Advanced Analytics and Real Application Testing options

Connect with the new service

SQL> connect system/racattack@collabn-cluster-scan.racattack:1521/BERLIN_SVC.RACATTACK

Connected.

Remember this is RAC so need to gv$ not the typical v$

SQL> select host_name from gv$instance where instance_number=userenv('instance');


HOST_NAME
----------------------------------------------------------------

collabn2.racattack

SQL> exit