In my previous post I wrote about some information about the shredded storage. During this week I have read a lot of information about how this new feature works and which are the limitations.
First of all I should write that we can use, the new feature shredded storage, for the binary files too.
So for file such as .doc, .ppt, and .xls shredded storage is accomplished by using a feature of Windows Server 2008: Remote Differential Compression. For the friends RDC.
However when you upgrade your system from SharePoint 2010 to 2013, your content databases do not automatically reduce in size. Shredded storage will only be used the next time the system needs to save a version.
So we can have a big slice of benefits if we have a lot of version of the same file, instead if we have one or two version of the same file we shouldn't take advantage of this feature.
Another example is if we save jpg file. Those files are already compressed so the delta from the original file and the version can be small.
There are some good articles around the web that explain the technology in depth: