When doing a Distributed install for Spectrum you have to create a Host Installation Information File (HII). This is an example of how it would look.
How do I setup/configure the Host Installation Information File for multiple servers for a Distributed Install?
Any Spectrum Distributed Install.
You add the next host below the first and continue on until all hosts are in the file. Below is an example:
Please reference the "Installing in a Distributed Environment" section of the documentation for more details.