Need to backup my pvcs on unix solaris

I am tasked with backing up the PVCS data from our server which is showing early signs of failure.

I need to understand where to find the data portion of the pvcs source control system.

Where do I find the files to backup?

What are the directories and what files are needed to be restored to another server.

This is a Sun Solaris Unix environment.

Is there any oracle database interaction?

Thanks so much for your help with this.