Symantec provides several methods to check the Veritas product you have installed, plus various requirement information.
You can check the existing product versions using the installer command with the -version option before or after you install. After you have installed the current version of the product, you can use the showversion script in the /opt/VRTS/install directory to find version information.
Information the version option or the showversion script discovers on systems includes the following:
The installed version of all released Storage Foundation and High Availability Suite of products
The required filesets or patches (if applicable) that are missing
The available updates (including patches or hotfixes) from Symantec Operations Readiness Tools (SORT) for the installed products