Preparing for installation

This topic provides information that you can use to prepare your environment for installing the product.

Read the Planning topic.
Verify that your environment meets system requirements.
Download and unzip the zipped product files (the installer) at your preferred location.
Ensure that the ports that you use for installing the various components are not in use.
Ensure that you have administrator privileges (on Windows) or superuser privileges (on Linux).

Preparing for installing on a Linux computer

If you are installing the product on a Linux computer, proceed as follows:

Download the .tar.gz file and then unzip and extract the file.
Access the command-line interface and change to the directory that contains the last extracted file; for example: /opt/BMC-TrueSight-IT-Data-Analytics/Disk1.
Enable the X Window System and set the DISPLAY variable to launch the installer user interface. To do so, run the following command:
```
DISPLAY=hostName:0.0
```
```
export DISPLAY
```
where hostName refers to the name of the computer on which you want to launch the installer.
To enable the Indexer to manage more data, navigate to the /etc/security/ directory and increase the number of open file descriptors on your installed location to at least 32,000.
To do so, add the following lines in the limits.conf file:
root soft nofile 32000
root hard nofile 32000
Save the limits.conf file.
To help prevent performance issues, execute the ulimit -l unlimited command to set the amount of memory that can be locked by the Indexer.