SVN limitations - Number of users and repositories?

I would like to know if SVN has a specified limitations of how many users and repositories it can sustain?

There are no limitations built into Subversion. However, there are practical limits if the repositories are used a lot.

You might have a misconception that leads you to believe you do something special at install time to choose limits. You don't. When you use the 'svnadmin create /path/here' command, that is when you choose things like which back-end to use. Just use the default, it's better.

There are some things to consider though. For instance, if you have 100 million repositories all served from the same machine, the disk and/or CPU will eventually max out. I suspect the disk will first.