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The ability to "zero" all data (multi-pass formatting) on a disk was not added until Mac OS X 10.2.3. Disk Copy was used for creating and mounting disk image files whereas Disk Utility was used for formatting, partitioning, verifying, and repairing file structures.

īefore Mac OS X Panther, the functionality of Disk Utility was spread across two applications: Disk Copy and Disk Utility. Another application called Drive Setup was used for drive formatting and partitioning and the application Disk Copy was used for working with disk images. In the classic Mac OS, similar functionality to the verification features of Disk Utility could be found in the Disk First Aid application.

It is also possible to create and manage RAM disk images by using hdiutil and diskutil in terminal. status of a hard diskĭisk Utility functions may also be accessed from the macOS command line with the diskutil and hdiutil commands.

Restoring volumes from Apple Software Restore (ASR) images.

Adding or changing partition table between Apple Partition Map, GUID Partition Table, and master boot record (MBR).

Secure deletion of free space or disk using a "zero out" data, a 7-pass DOD 5220-22 M standard, or a 35-pass Gutmann algorithm.

Erasing, formatting, partitioning, and cloning disks.

Verifying a disk's integrity, and repairing it if the disk is damaged (this will work for both Mac compatible format partitions and for FAT32 partitions with Microsoft Windows installed).

Mounting, unmounting and ejecting disk volumes (including both hard disks, removable media, and disk volume images).

Creation, conversion, backup, compression, and encryption of logical volume images from a wide range of formats read by Disk Utility to.The functions currently supported by Disk Utility include: com /guide /disk-utility /welcome /macĭisk Utility is a system utility for performing disk and disk volume-related tasks on the macOS operating system by Apple Inc.