"Not everyone has the budget, or need, for a 4-bay NAS and so Synology offer models such as the DS213 with two bays. Today we will be reviewing that model while also taking a look at their latest software, DiskStation Manager v4.2 (March 2013 release)."
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips