Use Disk Utility Partition Your Mac Hard Drive

Part 1: Why You need to partition your Mac Hard Drive

A MacBook comes with a single hard drive from the manufacturer with the amount of partition needed for the system to run normally. But this default partitions might not be enough if one wants to explore other options. To partition your Mac Hard drive comes with quite a number of mouthwatering advantages some of which we’ll be looking into.

One of the reasons you need to partition your system is for the ability to install different OS X on your Mac and be able to switch between this operating systems at will. Like different versions of Mac OS or Mac and Windows OS. This way you can run a software that won’t run on one OS on a different OS on the created partition of your system. You may also partition your Mac in order to use your computer as a Virtual Box engine for programming or test running programs without it affecting any operation on your main hard disk partition. Partitioning may also help with managing backups by creating a bootable backup and also backing up using Mac’s Time Machine.

Part 2: Definitions of Volume and Partition

A hard drive is a large storage device used by computers that has the quality of being divided into several units as much as it is desired by the user so that it can be seen on a computer system as separate storage devices with different compartments called a “Partition”. A partition is a division of a singular storage device in multiple storages seen by a computer system as separate storage folders with different names. Hard drive partition is divided into 3 different types namely, Primary, extended and logical partitions. A primary partition is usually that with a single file system and can be used as a bootable partition since it stores can have an OS installed on it and function as a primary storage. Only one Primary partition can be seen at the same time, all other primary partitions would be hidden. An extended partition mainly serves as a house for logical partitions.

While a Volume can be defined as an allocated space on a hard disk that has been formatted by your computer with a file system can be seen or accessed by a singular file system type recognized by the computer usually made up of a singular hard drive partition. When a volume of a hard drive partition has been accessed, the data stored on it can then be seen and retrieved.

Part 3. How to Partition Your Mac Hard Drive

Partitioning your Mac’ does not require searching for any special program to do the job for your since Apple has already preinstalled Mac Disk Utility. You can Use Disk utility to partition your Mac Hard Drive. Mac disk Utility can partition your Mac Hard Drive if you follow this steps judiciously. Upgraded versions of the Disk Utility program on Mac has features like easily adding, deleting and resizing of partitions. It can resize or increase the size of a particular partition without having to delete the entire partition or even to divide a partition into multiple ones. In order to partition your hard disk using Mac utility Disk, follow this steps below

  1. Go to Applications on your Mac and launch Disk Utility from the Utilities section.
  2. You should see a display of available hard drives and volumes in a list on the left pane of the Disk Utility program window.
  3. Use Disk Utility Partition Your Mac Hard Drive-1

  4. From the list displayed, you can select the hard drive to be partitioned and then click on the Partition Tab in the main window of the program.
  5. Select number of partitions to be created from the “Volume Scheme” heading on the selected hard drive.
  6. After selecting the number of partitions to be created, Mac Disk Utility divides available spaces into equal sizes between partitions to be created and to partition your Mac Hard Drive.
  7. Disk Utility requires that you select a name, format and size (measured in gigabytes) for each partition to be created.
  8. Use Disk Utility Partition Your Mac Hard Drive-2

  9. After all the necessary information has been inputted, do the same for all partitions you wish to create and click the “Apply” button.
  10. Mac Disk Utility would display a confirmation window showing all the information you had entered and the actions to be carried out on them, if satisfied, click “Partition” button to start the partition process.
  11. Wait till the process is completed then click “done” and your newly partitioned hard drive and its volumes should be ready for use.
  12. When your new partitions are ready, you can decide to install operating systems on any of the partitions or send files to the them.

Part 4: The risks of partitioning a Mac Hard Drive

Just as we all know that most good things have its perks, so does partitioning your hard drive. When you Use Disk Utility to partition your Mac Hard drive and to modify volumes. The process of partitioning may bring certain risks and errors. Some of this risks are;

  1. Modifying volumes and partitioning of hard drives may corrupt File System configurations resulting in inaccessibility
  2. There may also be inaccessibility due to corruption of the volume header which lead to loss of files and data stored on that particular volume
  3. While modifying the boost sector volume of your Mac, any wrongly taken step might lead to a crash and inability to boot into your default hard drive volume.

Part 5. How to Recover Hard Drive for Mac

  1. Launch the software to start the process of recovering files on your MacBook
  2. You can now select the type of files to be recovered from the interface of the program or you can select “All file types” to recover all files types and format
  3. How to recover Mac hard drive-1

  4. On the next window, select what hard disk partition to be scanned for deleted files
  5. How to recover Mac hard drive-2

  6. Click on “Start” to perform a quick scan of the selected hard drive partition
  7. When scan is completed, some files would be displayed, check if your desired file is present, if not, select the “deep Scan” option
  8. How to recover Mac hard drive-3

  9. Deep scan takes a longer time to scan but find more files than the normal quick scan
  10. How to recover Mac hard drive-4

  11. When the scan has been completed, you can now preview the files that has been scanned and seen.
  12. After you have seen the files you wish to recover, select them and click on “Recover” to get your files back.
  13. How to recover Mac hard drive-5


Apple always likes their devices to be independent and the Use Disk Utility to partition your Mac Hard drive to partition your Mac Hard drive is a product of Apple’s flair for self-reliance. Partitioning of Hard drive is a delicate process and should be followed systematically to avoid damage of hard drive or loss of data.

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