Help Agent Cloning.

Question

I have over 30 servers to install agent. so i preferred cloning the agent. I did some research and came out wiht this steps.
Step 1.
<Agent_ORACLE_HOME>/oui/bin/runInstaller –clone –forceClone ORACLE_HOME=<full path of ORACLE_HOME>ORACLE_HOME_NAME=<NAME> -noconfig –silent
Step 2.
Run the Agent configuration assist to configure the Agent and discover the host’s targets by executing the following command.
<Agent_ORACLE_HOME>/bin/agentca –f
Step 3.
Run the newly Cloned Agent’s root.sh script.
Step 4.
In order to enable secure communication between the Agent and the OMS, secure the agent
<agent_HOME>/bin/emctl secure agent <password>
My question is.
1.after runnnig the silent mode install in step 1, in step 2 i am configuring the Agent to discover the Host's target, i'm not sure how the command
agentca -f know the OMS server. (because in the command i didnt give any input of my OMS host name)
2. I have already some agents installed and listening to other OMS server. Now i have to reconfigure them to the new OMS server. How am i going to use the agentca -f to configue the agent to the new host.(how does the agent detect my new OMS server). do i need to edit the emd.properties in the agent and them run the agentca -f ?
Please advice.

Answer 1

1.after runnnig the silent mode install in step 1, in step 2 i am configuring the Agent to discover the Host's target, i'm not sure how the command
agentca -f know the OMS server. (because in the command i didnt give any input of my OMS host name)
--- You have to change the emd.properties file under AGENT_HOME/sysman/config .
You have to changed
REPOSITORY_URL & emdWalletSrcUrl . agentca -f will configure your agent and GC discovers the repsective host and you have to configure the db on GC.
2. I have already some agents installed and listening to other OMS server. Now i have to reconfigure them to the new OMS server. How am i going to use the agentca -f to configue the agent to the new host.(how does the agent detect my new OMS server). do i need to edit the emd.properties in the agent and them run the agentca -f ?
---Follow the below steps..
1.     Stop the Management Agent.
cd $AGENT_HOME
$emctl stop agent
2.     Locate the emd.properties file in the Management Agent home directory:
$AGENT_HOME/sysman/config/emd.properties
3.     Use a text editor to open the file and locate the REPOSITORY_URL property.
Modify the value for the REPOSITORY_URL property so it references the new Management Service.
For example:
REPOSITORY_URL=http://mgmthost_new.com:4889/em/upload
4.     Modify the value for the emdWalletSrcUrl and emdWalletDest properties so they reference the new Management Service and the new Oracle home path, respectively:
For example, if the new Management Service is on a host called mgmthost_new.com and the new Oracle home is /private/oracle/em10g, modify the properties as follows:
emdWalletSrcUrl=http://mgmthost_new.com:4889/em/wallets/emd
emdWalletDest=/private/oracle/em10g/sysman/config/server
5.     Save your changes and close the emd.properties file.
6.     Delete all the files in the following directories:
AGENT_HOME/sysman/emd/upload/
AGENT_HOME/sysman/emd/state/
7.     Restart the Management Agent.
emctl start agent