“SharePoint Server 2013 provides an improved level of IO and storage efficiency through a new storage capability known as Shredded Storage.
Shredded storage is a new data platform improvement in SharePoint 2013 related to the management of large binary objects (I.e. BLOBS such as PowerPoint Presentations, Word Documents, etc.).
Shredded Storage both improves I/O and reduces compute utilization when making incremental changes to document or storing documents in SharePoint 2013. Shredded Storage builds upon the Cobalt (I.e. File Synchronization via SOAP of HTTP) protocol introduced in SharePoint 2010.”
Updated 23rd May 2013: Bill also posted on a related matter. Deploying Remote BLOB Storage with SQL Server 2012 AlwaysOn Availability Groups
Updated 18th August 2013: This whitepaper provides a background of SharePoint products storage evolution and the implementation specifics and benefits of Shredded Storage in SharePoint 2013.