I have a Windows Server 2008 with VisualSVN Server hosting a repository. On the client computers I have TortoiseSVN client.
How can I create a backup of my repository that is hosted on the server and then restore it?
From http://www.visualsvn.com/support/topic/00012/ :
You can backup your repositories using svnadmin hotcopy Subversion command. For further details please refer to the Subversion documentation.
Please note that all other VisualSVN Server related data (such as user rights settings) are stored in your repositories topmost folder (C:\Repositories by default). You should backup them separately.
To save the data only (without hooks, configuration, etc.), use svnadmin dump. You can even use it incrementally.
Starting with Subversion 1.7 you can run svn dump remotely via svnrdump.
Depending on your backup capacity you may choose to always do hotcopy, or do hotcopy once in a while, complete svn dump more often, and incremental svn dump every night, etc.