How to Partition an External Hard Drive on Mac

Whether you have an external hard drive, or you’re going to be adding one to your Mac, there are some things you should know about partitioning. It’s important to know how to partition your drive so that you can make use of it effectively.


Whether you want to install an application on an external hard drive, back up important files or erase sensitive data, it’s important to know how to format an external hard drive on Mac. Luckily, the process is fairly simple.

First, you need to make sure your external hard drive is powered on and is connected to a power source. Next, you need to plug it into the Mac and make sure it is initialized with either a GPT or MBR partition scheme.

Once you’ve plugged your drive in, open Disk Utility. You can find it on the Mac desktop by clicking on the Apple menu and selecting “System Preferences”. Disk Utility is also available on the Finder. If you can’t find it on the Mac desktop, try typing “Disk Utility” into Spotlight.

Once Disk Utility is open, you will see a number of icons below the external drive. You will need to select the first icon. This is the one that shows your drive’s name, capacity, and connection type.

If you need to erase data on an external hard drive, you can use the Erase function in Disk Utility. You may have to wait a few minutes before the formatting process completes. This is due to the fact that larger drives may take longer to format.

You can also choose to format an empty external HD. This will give you the opportunity to select security options such as overwrite frequency. You may also have to use an adaptor.

You can also use Disk Utility to format your internal hard drive. Disk Utility has two options for formatting, one is APFS and the other is FAT. The APFS option is only available on macOS machines, but the FAT option is compatible with other operating systems.

You can also check your external drive’s status by clicking the View slide-button. You can also select the external drive’s security options. You can choose to have a password, encrypted files, or no password.

You can use Disk Utility to format external hard drives, internal hard drives, and file formats. The process is quick and easy, but it is a good idea to make sure you’ve copied all of your important files before formatting.

Delete a volume

Using Disk Management to delete a volume is a common operation. However, you must be aware of the consequences of deleting a volume. Not only will your hard drive free up space, but your data will also be erased. It is therefore important to take backups before deleting a volume. This will ensure that you don’t lose any of your data.

First, you’ll want to check whether your system partition is marked as unallocated. If it is, you can delete it. However, you may not want to delete it if you have important data on it. Instead, you can use it to extend another partition.

To find out whether your volume is unallocated, you can open Disk Utility. This is a tool that will show all of your storage volumes. You can also use this tool to create and delete partitions.

Next, open the Partition tab. This is one of the five tabs on the main window. You’ll want to find it in the middle of the tabs. It should have a minus symbol. If you don’t, the tab may be missing a white box.

The right pane of the window shows a visual breakdown of your volumes. In addition, you’ll also find tools for managing your volumes. If you need to format your drive, you’ll also find the Format option. This is a tool that will allow you to choose the file system type for your drive.

To use Disk Utility, you’ll need to know your drive’s drive letter. This is usually the drive letter for your system partition, but it may also be the drive letter for a volume. If you want to delete a volume, you’ll need to know its drive letter.

After you have selected a drive, you’ll see a list of partitions. If you want to delete a volume, right-click on the drive letter and choose “Delete Volume” from the menu. You’ll also see a confirmation message. You’ll then need to click “Yes” to confirm the deletion. If you don’t want to use Disk Utility, you can use the Windows PowerShell or Linux command line tools.

Add a volume

Adding a volume to an external hard drive is a good way to optimize storage space. If you have an empty external hard drive, you can easily add a volume and use the drive as a hard disk. However, if your external hard drive is formatted in another file format, you will need to erase it first.

Adding a volume on a disk that uses the APFS file system is easy. You can create new volumes by partitioning the disk or using Disk Utility to create a new APFS container. The APFS format is compatible with macOS and it is useful to store data between Mac OS releases.

The new volume will appear in the left sidebar of Disk Utility. It will be listed under a group called “Volumes.” When you select a volume, you will be prompted to enter the name for the new volume. You will also be prompted to select a format for the new volume. You should choose APFS.

After you create a new volume, it will appear as a separate drive on your Mac. You will also be able to access the volume from the Finder sidebar. You can install different versions of macOS on the volume. You can also turn off content caching to speed up software updates.

Before erasing the volume, you should make a backup copy. You can also replace the battery on the volume or take other steps to fix storage issues. If you don’t have enough free space on your drive, you may lose data. You should also clean your drive with CleanMyMac X.

When you are ready to delete the volume, you should first shut down your Mac and make a backup copy of your data. Then, you should perform the following steps.

If you are running MacOS 10.13.4 or later, you will need to use the APFS file system to create a volume. You can also use the Disk Utility to create a new volume or partition on an external hard drive.

If you have an APFS volume, you can use it to install different versions of macOS. You can also use the volume to store data.


Whether you want to shrink your external hard drive, enlarge it, or simply move it, you can do so using the Disk Utility application. This application is located in the Applications/Utilities folder and is used for managing and partitioning your drive. It’s also used for merging partitions on later versions of Mac OS.

Before using this application, make sure you have a backup of your system and files. This will ensure that you don’t lose any of your data.

Once you’ve selected the drive and opened the app, you will see a two-pane interface. In the lower pane, you will see a pie chart showing the amount of space that each volume occupies. You will also see a blue bar indicating the unallocated space in each volume.

The pie chart also shows a warning message. You can see how much space you will lose if you don’t resize the volume.

If you want to enlarge the volume, you will first need to delete the volume that is immediately behind the one you are resizing. This will free up unallocated space. Then you will need to select the volume that you would like to enlarge.

Next, you will need to rename the volume and select a file system. You can choose Mac OS Extended (Journaled) or Mac OS Extended (RAID). You can also create additional partitions. After you have selected the new partition, click the “Apply” button to apply the changes.

Before resizing your volume, make sure you have a backup of all the files you want to keep. Once you’ve finished resizing the volume, you can then restore the backup.

You can also create additional partitions, add data to existing partitions, or merge partitions. You can also resize a secondary partition. Once you’ve finished resizing your volume, you can move the data from the secondary partition to the primary one. Then you can create a backup of the secondary partition.

To resize an external hard drive, you need to be connected to your Mac. Disk Utility is the only tool that allows you to do this.

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