Partition Your Mac’s Hard Drive With Disk Utility

Partition Your Mac's Hard Drive With Disk Utility 1

Partition Your Mac’s Hard Drive With Disk Utility

Disk Utility

Disk Utility is the software of preference for dividing a difficult pressure into multiple partitions. Screenshot courtesy of Coyote Moon, Inc. Disk Utility is the software of desire for dividing a hard pressure into more than one wall. It’s sincere and smooth to use, it provides a pleasant graphical interface, and first-class of all, it’s free. Disk Utility is included with the Mac OS. The model of Disk Utility is bundled with OS X 10. Five and later have a few brilliant new features, particularly the capability to add, delete, and resize difficult force walls without first erasing the difficult power. If you need a barely large partition, otherwise you would like to break up a partition into more than one partitions, you could do it with Disk Utility without dropping the data currently stored at the force.

Mac's Hard Drive

In this manual, we’ll look at the fundamentals of creating multiple partitions on hard power. If you need to resize, add, or delete walls, check the Disk Utility: Add, Delete, and Resize Existing Volumes guide. Partitioning is a brief procedure. It will probably take longer to examine this newsletter than to partition your hard force!

  • What You Will Learn
  • The distinction between tough drives, walls, and volumes.
  • How to divide a difficult drive into more than one volume (partitions).
  • What You Need

A Mac with OS X 10.5.X through OS X 10.10.X (Yosemite). This guide is specific to OS X 10.5, but it needs to be used within advanced versions of the Mac OS. There can be minor nomenclature adjustments between the versions of Disk Utility covered with the various variations of the Mac OS; however, overall, the stairs have to be quite comparable. If you’re the use of OS X 10.11.X (El Capitan) or later, then the manual “Partition a Mac’s Drive Using Disk Utility (OS X El Capitan or later)” ought to be used. One or extra hard drives to partition.

Disk Utility makes it smooth to erase, format, partition, and create volumes and make RAID sets. Understanding the difference between erasing and formatting and walls and volumes will help you keep the processes straight.


Volume. A quantity is a garage container that has been formatted with a document system your laptop (in this case, a Mac) can recognize. Volumes are logical constructs; they’re now not the same as partitions or bodily difficult drives. Volumes are most customarily made of a single tough pressure partition that carries a Mac report system. But it’s additionally viable for a volume to be made up of more than one partitions, something we won’t address here.
Partition. The term ‘partition’ is each a verb and a noun. When you partition a difficult drive, you physically create separate sections at the difficult power; every one of those sections is known as a partition. A partition defines a selected area of a hard force.

Erase. Erasing is the manner of putting off all statistics from a specific volume or tough force. Data may be erased in more than one approach. The default method at the Mac deletes the statistics desk entries for the vicinity of the file. However, it does no longer definitely do away with the record itself from the difficult force or extent. The real impact of that is that your Mac does not see the file, and the gap it uses is now marked as an available free area. You also can specify optionally available erase options with a purpose of getting rid of the statistics completely. Format. Formatting a hard pressure defines how the tough drive’s media can be laid out to shop the pc records. Your Mac can use 5 special styles of codecs: Mac OS Extended (Journaled); Mac OS Extended; Mac OS Extended (Case-Sensitive, Journaled); Mac OS Extended (Case-Sensitive); and MS-DOS.

Mac's Hard Drive

  • Disk Utility – Partition a Hard Drive
  • Disk Utility – Partition a Hard Drive

Disk Utility will display equal-size walls to fill the available area at the tough power. Screenshot courtesy of Coyote Moon, Inc. Disk Utility lets you divide a difficult force into multiple partitions. Each partition can use one of the 5 layout types mentioned earlier, or a partition can be left unformatted as a loose area for destiny use.

Partition a Hard Drive

Launch Disk Utility, positioned at /Applications/Utilities/. Current hard drives and volumes will show in a list pane on the left side of the Disk Utility window. Hard drives are indexed with fairly cryptic names, usually made up of the hard drive’s length and the manufacturer’s name and model variety. A standard difficult pressure call is 298 GB WDC WD3200. This shows a 320 GB Western Digital hard drive with a model quantity of WD3200. The call lists the formatted size of the difficult drive (in this case, 298 GB), now not the raw size of the difficult drive (in this example, 320 GB). Volume names appear as indented entries just below the hard force they’re associated with. There’s nothing to decipher here; a quantity’s name in this listing is the same as the name it displays on the Mac computer or in a Finder window.

Select the tough power you wish to partition from the listing in Disk Utility. Click the ‘Partition’ tab. Use the dropdown menu underneath the Volume Scheme heading to choose the variety of partitions you want to create on the selected hard pressure. Disk Utility will show equal-length partitions to fill the available area at the hard power.
Before Disk Utility can create volumes from the walls you select, you’ll want to select a call, layout, and length for each partition. Disk Utility – Set the Name, Format, and Size of a Partition. Set the Name, Format, and Size of a Partition. Use the ‘Size’ subject to set a length for the partition. The size is entered in GB (gigabytes). Screenshot courtesy of Coyote Moon, Inc. When you pick the wide variety of partitions to create, Disk Utility will divide the to be had space equally between them. In most instances, you received’t want all partitions to be the equal length. Disk Utility offers two clean ways to exchange the sizes of walls.

  • Set Partition Sizes
  • Click the partition you wish to change.

Enter a name for the partition inside the ‘Name’ subject. This call will appear on the Mac desktop and in Finder windows. Use the Format dropdown menu to pick a layout for this partition. The default format, Mac OS Extended (Journaled), is a great desire for most uses. Use the ‘Size’ subject to set a length for the partition. The length is entered in GB (gigabytes). Press the tab or enter key on your keyboard to see a visual display of the ensuing partition changes. You can also interactively alter partition sizes by way of dragging the small indicator located among every partition. Repeat the technique for each partition so that all walls have a call, layout, and final length. When you’re glad together with your partition sizes, formats, and names, click on the ‘Apply’ button. Disk Utility will display a affirmation sheet, displaying the moves it’ll take. Click the ‘Partition’ button to continue. Disk Utility will take the partition records you supplied and divide the difficult power into partitions. It may also upload the chosen record gadget and call each partition, creating volumes your Mac can use.

  • Disk Utility – Using Your New Volumes
  • Keep Disk Utility within the Dock

Keep Disk Utility within the Dock. Screenshot courtesy of Coyote Moon, Inc. Disk Utility makes use of the partitioning facts you supply to create volumes your Mac can get entry to and use. When the partitioning process is whole, your new volumes must be installed on the laptop, ready to apply. Before you close Disk Utility, you can need to take a moment to add it to the Dock to make it less complicated to get the right of entry to the subsequent time you want to use it.


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