Install Data Collector with the Installation Wizard

After you meet the prerequisites (new installations), install Data Collector. You can install Data Collector using the installation wizard. Install Data Collector after you install Data Aggregator.

If you are installing more than one Data Collector, each Data Collector instance must be installed on a separate computer.

Follow these steps:

Log in to the computer where you plan to install Data Collector either as the root user or the sudo user.
Access the Data Collector installation package by doing one of the following actions:
- If you have HTTP access to the computer where Data Aggregator is installed, open a web browser on the computer where you want to install Data Collector. Navigate to the following address and download the installation package:
```
http://data_aggregator:port/dcm/install.htm
```
  data_aggregator:port
  
  Specifies the Data Aggregator host name and the required port number.
  
  Default: 8581, unless you specified a nondefault value during the Data Aggregator installation.
  
  Save the installation package to the /tmp directory.
- If you do not have HTTP access to the computer where Data Aggregator is installed, open a command prompt on a computer that does have HTTP access. Type the following command to download the installation package to your Desktop directory:
```
wget -P /Desktop -nv http://data_aggregator:port/dcm/InstData/Linux/VM/install.bin
```
  data_aggregator:port
  
  Specifies the Data Aggregator host name and the required port number.
  
  Default: 8581, unless you specified a nondefault value during the Data Aggregator installation.
  
  Transfer the install.bin file to the /tmp directory on the computer where you want to install Data Collector.
Note: Alternatively, use the wget command when you have HTTP access to the computer where Data Aggregator is installed and want to download the Data Collector installation package in a noninteractive mode.
Type the following command to change to the /tmp directory:
```
cd /tmp
```
Change permissions for the installation file by typing the following command:
```
chmod a+x install.bin
```
Do one of the following actions:
- To run the installer as the root user, type the following command:
```
./install.bin
```
  To run the installer as the sudo user, type the following command:
```
sudo ./install.bin
```
- To run the installer as the root user, and, at the same time, generate a response file, type the following command:
```
./install.bin -r
```
  To run the installer as the sudo user, and, at the same time, generate a response file, type the following command:
```
sudo ./install.bin -r
```
Select your preferred language, and click OK.
The License Agreement opens.
Read the license agreement, accept the agreement, and click Next.
When the installer prompts you, enter a user. This user will both own the installation and will be the user that Data Collector will run as. The default user is the root user. Hit Enter to select the root user.
Enter an installation directory when prompted.
The installer automatically calculates your maximum memory usage allocation for the Data Collector process, basing it on 80 percent of your server memory. You can modify this value during or after the installation.
The installer prompts you for the Data Aggregator host information.
For a Data Aggregator to associate with Data Collector, enter either the IP address or the hostname.
Important! Specify the Data Aggregator host information correctly. If you specify the Data Aggregator host information incorrectly, Data Collector shuts down after installation. An error message is logged in the Data Collector installation directory/apache-karaf-2.3.0/shutdown.log file. Uninstall and reinstall Data Collector.
Enter either 'y' or 'n' when you are asked whether to associate this Data Collector with the Default Tenant.
Enter ‘n’ if you represent a service provider who is planning to deploy multi-tenancy. You can then associate each Data Collector installation with a tenant. If you are not deploying multi-tenancy, enter 'y'. For more information about multi-tenant deployments, see the CA Performance Center online help.

Data Collector is installed and started, and it connects to Data Aggregator.

Note: If you restart the computer where Data Collector is installed, Data Collector automatically restarts and connects to Data Aggregator.

If you chose to generate a response file when you installed Data Collector, a response file, installer.properties, is created. The response file is located in the same directory where you ran the installer. You can rename the response file. Modify the response file as needed. You can use the response file to install Data Collector on other computers silently.
Review the /opt/IMDataCollector/Logs/CA_Infrastructure_Management_Data_Collector_timestamp.log file on the computer where Data Collector is installed.
If the installation is successful, the log shows 0 Warnings, 0 NonFatalErrors, and 0 FatalErrors.
Verify that the Data Collector connection is successful after the installation by taking the following steps:
1. Log in to CA Performance Center as the global administrator or as the tenant administrator for the tenant that is associated with this Data Collector.
2. Navigate to the Data Aggregator administration view and expand the System Status view.
3. Select Data Collectors from the menu.
4. Verify that Data Collector appears in the list. Its Tenant and IP Domain are blank if you selected 'n' when you were asked whether to associate this Data Collector with the Default Tenant.
  Note: The list can take several minutes to refresh and show the new Data Collector installation.
(New installations) Assign a tenant and IP domain to each Data Collector if the Tenant and IP Domain are blank:
1. Select the Data Collector instance and click Assign.
2. Select a tenant and an IP domain for this Data Collector in the Assign Data Collector dialog, and click Save.
Data Collector is installed.

More information:

How to Install CA Performance Management Data Aggregator – Installation Wizard