We completed the migration of the Mono repository from CVS to SVN. We did a few dry runs of the whole migration to verify that nothing would go wrong.
We are happy to report that the migration went as planned and we only had a small service interruption of a few hours while we did the final migration.
The repository had 635 megs of data in 34,831 files checked-in. We are using the file system backend, and things went very smoothly.
Details on the migration process for Mono users are here.