RAC Commands : 1 -- Viewing Configuration

In 11gR2

Viewing the configuration of a RAC database

[root@node1 ~]# su - oracle
-sh-3.2$ srvctl config database -d RACDB
Database unique name: RACDB
Database name: RACDB
Oracle home: /u01/app/oracle/rdbms/11.2.0
Oracle user: oracle
Spfile: +DATA1/RACDB/spfileRACDB.ora
Domain: 
Start options: open
Stop options: immediate
Database role: PRIMARY
Management policy: AUTOMATIC
Server pools: RACSP
Database instances: 
Disk Groups: DATA1,FRA,DATA2
Mount point paths: 
Services: MY_RAC_SVC
Type: RAC
Database is policy managed
-sh-3.2$ 

So, we see that :
a) The database name is RACDB
b) It is a Policy Managed database (not Administrator Managed)
c) It is dependent on 3 ASM Disk Groups DATA1, DATA2, FRA
d) There is one service called MY_RAC_SVC configured
e) The database is in the  RACSP server pool
f) The database is configured to be Auto-started when Grid Infrastructure starts


Viewing the configuration of a RAC service

-sh-3.2$ srvctl config service -d RACDB -s MY_RAC_SVC
Service name: MY_RAC_SVC
Service is enabled
Server pool: RACSP
Cardinality: UNIFORM
Disconnect: false
Service role: PRIMARY
Management policy: AUTOMATIC
DTP transaction: false
AQ HA notifications: false
Failover type: NONE
Failover method: NONE
TAF failover retries: 0
TAF failover delay: 0
Connection Load Balancing Goal: LONG
Runtime Load Balancing Goal: NONE
TAF policy specification: NONE
Edition: 
Service is enabled on nodes: 
Service is disabled on nodes: 
-sh-3.2$ 

So, we see that :
a) The service name is MY_RAC_SVC
b) The UNIFORM cardinality means that it is to run on all active nodes in the server pool
c) The server-side connection load balancing goal is LONG (for long running sessions)


Viewing the configuration of Server Pools

-sh-3.2$ srvctl config srvpool
Server pool name: Free
Importance: 0, Min: 0, Max: -1
Candidate server names: 
Server pool name: Generic
Importance: 0, Min: 0, Max: -1
Candidate server names: 
Server pool name: RACSP
Importance: 0, Min: 0, Max: 2
Candidate server names: 
-sh-3.2$ 

So we see that :
a) The RACSP server pool is the only created (named) server pool
b) This server pool has a max of 2 nodes

Installing OEL 6 and Database 12c

Here is a collection of posts on installing (a) Virtual Box (b) Oracle Enterprise Linux 6 (c) 12c Grid Infrastructure (Standalone, non-Clustered) and ASM (d) 12c Database with CDB and PDB.
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Passed the 11g RAC and Grid Expert Exam

I passed the 11g RAC and Grid Expert Exam yesterday.
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For those who are interested :

You must absolutely read the documentation on ASM, Grid Infrastructure and RAC. 

I also recommend 3 books 
1) Pro Oracle Database 11g RAC on Linux -- by Steve Shaw and Martin Bach [Apress Publishing]
2) Oracle 11g R1/R2 Real Application Clusters Essentials -- by Ben Prusinsky and Syed Jaffer Hussain [Packt Publishing] 
OR 
2) Oracle 11g R1/R2 Real Application Clusters Handbook -- by Ben Prusinsky, Guenad Jilveski and Syed Jaffer Husssain [Packt Publishing] 
3) Oracle Database 11g Release 2 High Availability -- by Scott Jesse, Bill Burton and Bryan Vongray [Oracle Press] 

The 11gR2 Grid and RAC Accelerated training at Oracle University is also recommended but expensive.
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