title: What is the best strategy when migrating from ClearCase to SVN?
body: <p>We are considering moving from ClearCase to Subversion. The project has been there for a while (7 years) and there are three "major" versions (branches) that we actively support, plus some occasional fixes in older releases. The project is fairly large - around 2 mln lines of java code.</p>
  
  <p>I am curious if there is someone that has done similar migration. </p>
  
  <ul>
  <li>Will SVN be able to handle such a large project?</li>
  <li>Does it make sense to migrate all historical versions/branches? Are the tools that could do it selectively?</li>
  <li>How long will the migration process take for such a project and what is the effective way of working then the migration is in progress?</li>
  </ul>