Cloning the Oracle Database Server which has Grid 11.2.03 and DB 11.2.0.3

Question

Hi DBA's,
Did anybody came across cloning a database servers? If i have the OFA for Grid and DB homes i.e /u01/app/oracle so after clone it will be the same across all servers. So the inventory structure will be same also. After cloning changing the listener.ora files to point to new IP/Hostname can bring up the listener. What else? Did anybody tried this things and what all issues have come or what all issues could come.
Thanks,
Bhushan Altekar

Answer 1

Ok. I got the cloned VM . I did the same steps as we use for normal grid and db cloning. Below are the steps i did.
1) change the ip address
2) reboot
3) after reboot wait for few minutes till the ASM comes up automatically
4) as root run the below command
/u01/app/oracle/product/11203/grid/crs/install/roothas.pl -deconfig –force
5) Change the hostname with system-config-network-tui - Edit DNS Configuration and change the hostname here
6) Edit the /etc/hosts file and enter the ip address and the hostname
7)Reboot
8) After the reboot as root run the command
/u01/app/oracle/product/11203/grid/root.sh
================================
#output of step 8
[root@cat ~]# /u01/app/oracle/product/11203/grid/root.sh
Performing root user operation for Oracle 11g
The following environment variables are set as:
ORACLE_OWNER= oracle
ORACLE_HOME= /u01/app/oracle/product/11203/grid
Enter the full pathname of the local bin directory: [usr/local/bin]:
The contents of "dbhome" have not changed. No need to overwrite.
The contents of "oraenv" have not changed. No need to overwrite.
The contents of "coraenv" have not changed. No need to overwrite.
Entries will be added to the /etc/oratab file as needed by
Database Configuration Assistant when a database is created
Finished running generic part of root script.
Now product-specific root actions will be performed.
Using configuration parameter file: /u01/app/oracle/product/11203/grid/crs/install/crsconfig_params
LOCAL ADD MODE
Creating OCR keys for user 'oracle', privgrp 'dba'..
Operation successful.
LOCAL ONLY MODE
Successfully accumulated necessary OCR keys.
Creating OCR keys for user 'root', privgrp 'root'..
Operation successful.
CRS-4664: Node cat successfully pinned.
Adding Clusterware entries to inittab
cat 2012/08/23 13:14:02 /u01/app/oracle/product/11203/grid/cdata/cat/backup_20120823_131402.olr
Successfully configured Oracle Grid Infrastructure for a Standalone Serveror a Standalone Server
===============================
9) stop the HAS service
crsctl stop has
10) Add the listener
srvctl add listener
11) Add the asm instance as new cloned grid don’t know about it. So we have to add it and see its added or not.
12) srvctl add asm -d '/dev/oracleasm/disks/*' # Note here if you specify wrong diskstring. Your Oracle restart stack wont come up automatically after reboot. so please specify it correctly.
13) crsctl status res # check all the resources are added or not
14) edit the listener.ora file and change the hostname ( HOST = XXXX part of the file)
15) crsctl enable has
Congrats we have successfully cloned the database server itself.
Please check the steps i did. And add if you think it should be added and taken care of.
Thanks,
Bhushan Altekar
Edited by: user13368428 on Aug 23, 2012 3:13 PM
Edited by: user13368428 on Aug 31, 2012 4:58 PM