Hey gang, I have a 2006 Mac Pro with a stock boot drive and 2 media drives, but today, when I woke up my computer from sleep, one of my boot drives (1TB) had disappeared. The icon does not show up on either the desktop or Finder and the drive does not appear in either Disk Utility or System Profiler. I have tried rebooting several times, trying the drive in every slot and swapping it with my other drives, but still no luck! If anyone has experienced a similar problem or if they know of a solution, that would be amazing!!