http://www.if-not-true-then-false.com/2012/svn-subversion-backup-and-restore/

1. svnadmin dump /svn/repository_path > dumpfile
2. svnadmin load /svn/repository_path < dumpfile

1. svnadmin hotcopy c:\repository d:\repobak
2.                               來源             備份處
3. svnadmin load backrepo < dumpfile