Hi, I have a Mac Mini which I installed a 128gb SSD. Twice my Mac has failed to boot when it runs out of space resulting in hours of troubleshooting and trying to fix it. This time around I didnt get any indication from OSX Is there a utility which can alert me at say 90% and 95% full? I really dont want to go through that process again! My SSD had mainly filled up with my iOS apps and iPhone/iPad backups. Deleting the apps freed up about 35gb space!