The much anticipated, Storage and SQL Server capacity planning and configuration (SharePoint Server 2013) article is now live on TechNet. The product group invested many hours of testing both SQL Server 2008 R2 SP1 and SQL Server 2012 with SharePoint Server 2013. Use the resulting data in this article as a guideline to help you plan and deploy SQL Server in your SharePoint Server 2013 farm. 

Special thanks go to Microsoft Senior Program Manager, Dan Winter for his tireless work of pulling the test teams and all of the data together so that I could write this article. Additional thanks go to Ryan Campbell and Mike Taghizadeh, (Microsoft Consulting Services); Neil Hodgkinson (Microsoft Senior Program Manager, UK); Steve Walker (Senior Security Program Manager); Bill Baer (Senior Product Marketing Manager - SharePoint, for their many comments and suggestions.

- Steve Hord