Drives unmounting or ejecting on their own.Included as a standalone app with the original Mac OS, it was later folded into Disk Utility when OS X was released.ĭisk Utility, and its First Aid system remains the first line of defense for drives that are experiencing a number of issues, including: Disk First Aid, currently part of Disk Utility, has long been the go-to utility for verifying and repairing a Mac’s storage system.
