Have you ever seen this pop up at the top of your screen in 2013?
This was just one more thing to pop up during our migration from MOSS 2007 to 2013. Fortunately, this is not a big deal. Here is a link to another post explaining how to clear this message and remove the locks on your site.
Turns out that a backup process was kicked off this morning and was not complete when we rebooted the farm. This left us with this nice little pink bar at the top of certain sites. Phew! Not a crisis, just too much migration action.