You won't find any commands or utilities on Mac for defragmenting the hard drive. The issue lies in the fact that Mac File System is designed differently from Microsoft, so you can't defragment the hard drive in the same way as on Windows, and it's designed to automatically defragment files. However, in some exceptional cases, you may need to defragment the Mac hard drive.
Preventing Hard Drive Fragmentation on Mac Machines
In the article below, Mytour will address all your queries regarding why it's necessary to prevent hard drive fragmentation on Mac? How does fragmentation affect HDDs? And methods to prevent hard drive fragmentation on Mac, along with some tricks and tips to speed up Mac.
Is it necessary to prevent hard drive fragmentation on Mac?
Firstly, let's understand why it's necessary to prevent hard drive fragmentation on Mac. Essentially, preventing hard drive fragmentation on Mac aims to improve computer performance by rearranging data on the hard drive. As a result, related data bits are grouped together, and the process of loading files, programs will take less time.
Although the advantage of preventing fragmentation is to enhance system performance, however, for Mac running OS X versions higher than version 10.2, preventing fragmentation is often unnecessary.
Explanation for this is because OS X and macOS come equipped with utilities to tidy up fragmented files on the hard drive. Hence, users need not worry about defragmenting regularly. Yet, in some rare cases, defragmenting the Mac's hard drive can yield notable differences.
When should one prevent hard drive fragmentation on Mac?
If the hard drive surpasses 90% of its total capacity, macOS may encounter issues tied to automatic defragmentation. This situation commonly arises when users employ tools like Adobe Premiere, Final Cut, or Photoshop for editing large-sized video and image files.
Imagine you've downloaded and stored hundreds, even thousands of music files, movies (around 1 GB or more), or other sizable documents on your Mac. Consider deleting these files to free up memory, or alternatively, opt for preventing hard drive fragmentation on Mac.
If you opt to resolve by deleting files, the quickest and safest way to clear unnecessary junk files on Mac is by tidying up your Mac system with CleanMyMac 3. On average, CleanMyMac 3 can detect and handle over 74 GB of junk on a computer, including junk files, old large-sized files, and junk applications on the system, helping to improve Mac performance, and of course, you won't need to prevent hard drive fragmentation on Mac anymore.
Download CleanMyMac 3 to your computer and install it here: Download CleanMyMac 3
However, if you're still wondering how to prevent hard drive fragmentation on Mac? Refer to the section below in this article.
How to prevent hard drive fragmentation on Mac
One of the simplest and most user-friendly ways to prevent hard drive fragmentation on Mac is to use third-party defragmentation software.
However, before installing and using any specialized applications or programs, you should back up the data on your Mac's hard drive to ensure that in case of any mishaps, you can still recover all the necessary files and data. Use Time Machine, iCloud, Dropbox, or external storage devices to back up and store data backups.
When choosing defragmentation applications or software, it's essential to pay particular attention to the compatibility of the application. Macs running older versions of OS X, prior to OS X 10.2, are not compatible with the latest defragmentation software, making it slightly challenging to find relevant tools.
After selecting and installing the program, open it and follow the on-screen instructions to defragment your Mac's hard drive. Wait until the defragmentation process is complete, and during the process, avoid moving your Mac to any other location.
And it's important to note that after completing the hard drive defragmentation process, you'll need to restart your Mac.
Does defragmentation affect HDD?
You might wonder and worry whether defragmentation affects or damages the HDD? As mentioned above, defragmenting the hard drive can speed up traditional HDDs. This is because HDDs fragment all data and store it in multiple locations. And reading files with data fragments located in different places takes more time. However, if you're using an SSD, you can't defragment the Mac's hard drive if your device uses this SSD.
The data rearrangement process doesn't harm HDDs, and the purpose is solely to improve computer performance. In fact, if done correctly, defragmenting the Mac's hard drive is more beneficial than harmful.
Are there any other ways to prevent hard drive fragmentation on Mac?
If you notice your Mac slowing down gradually, you may not need to defragment the Mac's hard drive. Sometimes, the reason for a slow Mac may not be the HDD. Try applying some other methods besides defragmenting the hard drive to speed up the system and see how it goes.
Repairing disk permissions on Mac
One of the troubleshooting tips for Mac issues is to 'repair disk permissions.' Permissions are settings that affect the ability to read, write, and execute files. If permissions are not set correctly, software using files may not function properly.
On OS X Yosemite or older versions, you can utilize Disk Utility to repair file permissions on the startup drive. Note that starting from OS X El Capitan, disk access permissions are automatically protected and do not require verification via Disk Utility.
Repairing startup disk access on Mac
Follow the steps below to optimize your Mac:
Step 1: Open Disk Utility (Applications => Utilities).
Step 2: Select the startup drive.
Step 3: Click on the Aid tab.
Step 4: Click on Verify Disk Permissions to check permissions.
Step 5: Click on Repair Disk Permissions to fix any improper permissions.
If you don't want to manually repair disk permissions, you can easily do this with CleanMyMac 3. The Maintenance option in CleanMyMac 3 assists in optimizing your Mac, including verifying startup disk and repairing disk permissions. So you can be completely assured that your Mac will function properly.
Before defragmenting your Mac hard drive, try implementing hard drive cleanup methods to speed up your Mac. This process doesn't pose any risks and doesn't take much time to complete.
Some Tips and Tricks to Speed Up Mac
A slow Mac can cause various issues, especially when you need to search or use your Mac to complete tasks, ... and having a slow Mac can make you feel uncomfortable, frustrated. Here are some tips and tricks to improve performance and speed up your Mac.
1. Update to the Latest macOS Version
Try updating to the latest macOS version. Typically, the latest versions integrate new features, bug fixes, and performance enhancements over older versions.
2. Delete Unnecessary Files
Ensure that at least 10% of the storage capacity on your Mac is reserved for wallpapers, ..., providing enough space for temporary files, cache memory, and virtual memory.
CleanMyMac 3 provides an excellent solution to find and remove large junk files that occupy a lot of storage space on your Mac.
3. Disable Some Startup Programs
Many applications and programs starting up with the system are also culprits that slow down your Mac's boot time. Some applications run in the background while others only appear in the menu bar, making it difficult to determine if they are actually running.
To prevent programs and applications from starting up with the system, open System Preferences, then click on Users & Groups =>Login Items. Here you will see a list of applications that start up with the system. Disable unnecessary programs by clicking the minus (-) icon.
Here are some strategies to defragment your Mac hard drive as well as some tricks and tips to speed up your system. Additionally, you can utilize third-party utilities like CleanMyMac 3 to boost your Mac's performance. CleanMyMac 3 swiftly and safely optimizes Mac performance.