October 26th, 2012
Out of the box a My Site is limited to a maximum of 100 MBs, and generates a size warning at 80 MBs. Those last 20 MBs can .go quickly, and SharePoint will not allow users to create or upload new documents once they’ve hit that limit… Worse yet, that limit may present as other types of errors, making it difficult to pinpoint – for example, auto-syncing OneNote 2010 Notebooks will simply generate errors during sync, and the errors you get are not clear and obvious. (This, in fact, is the use case that inspired this post).