How to create macOS Sierra hard drive partitions

How to create a partition on your Mac to test High Sierra, How to create a partition on your Mac. Open Finder from your dock. Select Applications. Scroll down and open the Utilities folder. Double-click to open Disk Utility. Select your hard drive in the Disk Utility window. Click on the Partition tab., How to Use macOS Sierra Disk Utility to Partition, Erase Drives, How to partition a Mac hard drive or SSD, macOS Sierra Partition Manager Software for Hard Drive and External


When our daily tasks include the support and management of users and infrastructure at IT level, there are certain parameters that we must keep in mind to improve the performance, integrity, availability and security of not only the information but also of each object that is our responsibility.

How to create macOS Sierra hard drive partitions

One of these topics is associated with partitions that can be established for different reasons, either security or administration. Most of us know that creating a partition is to divide the disk, logically, into two or more parts, technically known as volumes, which are independent of each other and each can be formatted with a different file system .


Purpose of a partition

There are several reasons why we can create a partition on a hard drive, some are:

  • Possibility of installing an operating system on one of these partitions
  • Create a backup unit in case of an error in the main unit
  • Distributing the hard disk space more optimally
  • Defining one of the partitions for Time Machine


Now, we must understand that if we have the backing of confidential and sensitive information on the same hard disk we may be exposed to a damage to the disk that will affect all partitions including that of our backup, so for backup issues it is best to use a different disk.


Before beginning any of these processes, it is important that we make sure we have a complete backup of all our files on the hard disk and documents , so as not to take any risks in the event of any failure in the process. In Mac have no need to have any program to create our backup because with Time Machine application that comes by default, we will be able to do it directly.

MAC Backup

Once this is done, we can start the process to create or add a partition on the Mac hard disk


1. Create partition in macOS Sierra


Step 1

The default tool on any Mac operating system to manage the entire partition theme is Disk Utility. To access it we can use one of the following options:

  • Directing us to the route Ir / Utilities / Disk Utility
  • Enter the term utility in Spotlight and select Disk Utility in the displayed option
  • Use the key combination Shift + Command + U and in the popup window select Disk Utility


 +  + U



Step 2

Keeping in mind the purpose of the partition we proceed to select the disk on which to create the partition and select the Partition tab located at the top, the following window will be displayed.


There we can see how the disk structure is at the level of partitions and available space. To create our partition we will click on the + sign and we will see the following.


We must drag the flag to define the size of the partition or we can enter it manually in the Size field. In addition we can define the name of the partition and the format with which it will be formatted.


Step 3

Specify the name and size:


Within the Format field we have the following file system options:


Mac OS Plus (with registration)
This option uses the Mac (HFS Plus with registry) format to protect the integrity of the Sierra macOS hierarchical file system.


Mac OS Plus
(with registration, encrypted): This system uses the Mac format, requires access password and encrypts the partition.


Mac OS Plus (upper / lower, with registration)
This system uses the Mac format and distinguishes the upper and lower case from the names of the folders and files. For example, the “Solvetic” and “SOLVETIC” folders are different from each other.


Mac OS Plus (upper / lower, with registration, encrypted)
This system uses the Mac format, distinguishes the case of folder names, requires password and encrypts the selected volume.


It is used for Windows volumes with capacity up to 32 GB.


It is used for Windows volumes whose capacity is more than 32 GB.


Step 4

Once these values ​​are defined, click the Apply button to start the process and we will see the following message:


Click on Partition to start the respective creation process of the partition in macOS Sierra. We can see that the partitioning process has completed correctly. From this moment we will be able to make use of the new partition in macOS Sierra


Disk Utility will be a great ally to create a new partition in macOS Sierra even if the operating system has not been installed, in this case we must do the following:

  • Turn on the computer and press and hold Command + R


 + R


This option will boot macOS Sierra in recovery mode and there it will be necessary to access the Disk Utility to create the partition according to the requested requirements.


Deleting or merging a partition

In case we want to delete or merge a partition , we have to perform the following process. It is also quite simple. In the first place we would have to repeat the same actions as detailed above. We would have to select the (-) button in this case and then apply for the changes to take place.

If we remove an existing partition, we will lose all the data we have stored on it.


2. How to Troubleshoot Hard Drives

When there is an error in the hard drive macOS Sierra offers us a tool inside the Disk Utility called First Aid which performs a detailed analysis on the disk for errors and if they exist it proceeds to correct them.


To execute the first help in Sierra we must select the partition to analyze and click on the First help button located at the top, we will see the following window:


Click on Run to start the analysis of the partition and once the process is finished we will see the respective results:



3. Configuration of RAID in macOS Sierra

Another of the great options offered by Disk Utility is the ability to configure and set up a RAID drive according to current needs. For this we go to the File menu / RAID Wizard


Using this option will display the wizard where we must define the type of RAID to use:


To know more about how to configure RAID in Sierra we can go to the following link:




In this way we can create and manage the partitions in macOS Sierra in an intuitive way thanks to Disk Utility.

Create macOS Sierra hard drive partitions
Senior Author; Parvinder Singh is a technical writer with a background in Information Technology and Business management, passionate about technology, gadgets and video games.

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