Disk Utility

The functions currently supported by Disk Utility include:{{Cite web |title=Intro to Disk Utility on Mac |url=https://support.apple.com/en-ca/guide/disk-utility/dskutl1029/22.0/mac/13.0 |access-date=2022-11-08 |website=Apple Support |language=en}}

• Creation, conversion, backup, compression, and encryption of logical volume images from a wide range of formats read by Disk Utility to .dmg or, for CD/DVD images, .cdr
• Mounting, unmounting and ejecting disk volumes (including both hard disks, removable media, and disk volume images)
• Enabling or disabling journaling
• 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)
• Erasing, formatting, partitioning,{{Cite web |title=Partition a physical disk in Disk Utility on Mac |url=https://support.apple.com/en-ca/guide/disk-utility/dskutl14027/22.0/mac/13.0 |access-date=2022-11-08 |website=Apple Support |language=en}} and cloning disks
• 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
• Adding or changing partition table between Apple Partition Map, GUID Partition Table, and master boot record (MBR)
• Restoring volumes from Apple Software Restore (ASR) images
• Checking the S.M.A.R.T. status of a hard disk

Disk Utility functions may also be accessed from the macOS command line with the diskutil and hdiutil commands.{{Cite book|url=https://books.google.com/books?id=Vf4U4UkDANsC&q=Disk+Utility+functions+may+also+be+accessed+from+the+macOS+command+line+with+the+diskutil+and+hdiutil+commands.&pg=PA991|title=Mac OS X Help Line, Tiger Edition|last1=Landau|first1=Ted|last2=Frakes|first2=Dan|date=2005-12-20|publisher=Peachpit Press|isbn=9780132705240|language=en}} It is also possible to create and manage RAM disk images by using hdiutil and diskutil in terminal.{{Cite web|url=https://osxdaily.com/2007/03/23/create-a-ram-disk-in-mac-os-x/|title = Create a RAM Disk in Mac OS X|date = March 23, 2007}}

In the classic Mac OS, similar functionality to the verification features of Disk Utility could be found in the Disk First Aid application. Another application called Drive Setup was used for drive formatting and partitioning and the application Disk Copy was used for working with disk images.{{Citation needed|date=November 2022}}

Before Mac OS X Panther, the functionality of Disk Utility was spread across two applications: Disk Copy and Disk Utility. Disk Copy was used for creating and mounting disk image files whereas Disk Utility was used for formatting, partitioning, verifying, and repairing file structures. The ability to "zero" all data (multi-pass formatting) on a disk was not added until Mac OS X 10.2.3.[http://docs.info.apple.com/article.html?artnum=107263 "Mac OS X: About the Mac OS X 10.2.3 Update"] {{Webarchive|url=https://web.archive.org/web/20080327133307/http://docs.info.apple.com/article.html?artnum=107263 |date=March 27, 2008 }}. Apple Inc. Further changes introduced in Mac OS X Tiger, specifically version 10.4.3, allowed Disk Utility to be used to verify the file structure of the current boot drive. Mac OS X Leopard added the ability to create, resize, and delete disk partitions without erasing them, a feature known as live partitioning. In OS X El Capitan, Disk Utility has a different user interface and lost the abilities to repair permissions due to obsolescence,{{Cite web|url = https://developer.apple.com/library/mac/releasenotes/General/rn-osx-10.11/|title = OS X v10.11 Developer Beta 7 Release Notes|date = August 18, 2015|access-date = October 7, 2015|website = Mac Developer Library|publisher = Apple Inc.}}{{dead link|date=September 2017 |bot=InternetArchiveBot |fix-attempted=yes }} create and manage disks formatted as RAID, burn discs, and multi-pass format internal solid-state drives and encrypted external drives.{{Cite web|url = http://arstechnica.co.uk/apple/2015/09/os-x-10-11-el-capitan-the-ars-technica-review/6/#h3|title = OS X 10.11 El Capitan: The Ars Technica Review|date = September 29, 2015|access-date = September 30, 2015|website = Ars Technica|last1 = Cunningham|first1 = Andrew|last2 = Hutchinson|first2 = Lee}}

• Apple Software Restore
• Logical Disk Manager
• Palimpsest Disk Utility
• GNU Parted
• diskpart
• fdisk
• cfdisk
• sfdisk

{{Reflist}}

• [https://ss64.com/osx/diskutil.html Online man page for diskutil]
• [https://ss64.com/osx/hdiutil.html Online man page for hdiutil]

{{macOS}}

{{Disk image emulators software}}

{{Data Erasure}}

Category:MacOS

Category:Disk partitioning software

Category:Hard disk software

Category:Data erasure software

Category:Backup software for macOS

Category:MacOS archivers and compression-related utilities