Ever since the release of OS X 10.6.8, Apple has been selectively enabling the TRIM command for SSDs in OS X. This support continues on in OS X Mavericks, but as many have noted, it only seems to work for Apple SSDs by default. We'll show you how you can enable TRIM across the board.
What is TRIM?
The SSD will not TRIM unless the OS passes the command or unless Intel makes a utility to TRIM the SSD as they have done XP and VISTA which do not support TRIM at the OS level. So the question is when is Apple going to support TRIM in OSX. The Intel SSD might be already be able to handle the HFS filesystem, but I doubt it. Important: The TRIM function was designed to trim the 7-bit ASCII space character (value 32) from text.In the Unicode character set, there is an additional space character called the nonbreaking space character that has a decimal value of 160. MacOS® with Apple® SSDs has built-in Trim and Active Garbage Collection. Some versions of MacOS support third-party SSDs with additional software. To check to see if you have Trim support, select the Apple menu while holding down the Option key. Under System Information, scroll to the name of your storage interface under Hardware. Considering that you want to rotate a video on Mac, ensure you download the Mac version. Add video(s) When you enter the main interface, click the 'Add File' button to load the video that you want to trim on Mac. Trim a video on Mac. After adding the video you want to trim, click 'Edit' button to enter the main editing. Apple have not allowed TRIM support unless you have an Apple installed SSD Drive. That means if you want to install your own SSD into a mac, you have 2 options. (1) Install an SSD that doesn't need TRIM. Here are some SSD's that work better without TRIM: – any SSD with a Sandforce controller. – All OWC Mercury Drives.
The TRIM command is an important disk command for SSDs that keeps your flash memory appropriately cycled so that you can achieve faster read and write speeds, as well as a longer lifespan for your SSD. As such, TRIM support is not the trivial matter that some make it out to be (although certain manufacturers, such as Other World Computing, include firmware that eliminates the need for OS-level TRIM support).
Trim Support Enabler Mac
How to Enable TRIM Via the OS X Terminal (Recommended)
In you have an SSD that supports TRIM, follow the below instructions to enable it in OS X Mavericks. Note: This involves the use of terminal commands, so proceed at your own risk.
First, enter the command found in this document in the Terminal app on your Mac (found in Applications/Utilities).
After entering this command, you'll need to enter a second command:
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sudo touch /System/Library/Extensions/
The above-linked document also contains some troubleshooting instructions, as well as details on how to disable TRIM support if necessary.
Using a Third Party Tool
Trim Support Mac High Sierra
If you don't find success using the Terminal command to enable TRIM for your SSD, there are two third-party apps that can help you enable TRIM support. I recommend trying Chameleon SSD Optimizer first. If that doesn't do the trick, you can try TRIM Enabler 3.0 or later for Mac. I don't like to recommend third-party tools, as they often make system-level changes above and beyond those performed by the terminal command – and that may not be in your best interest long-term.
Verifying TRIM Support
To ensure that the command was successful, and that TRIM really is enabled on your SSD, click the Finder menu in the Menu bar, then navigate to About This Mac > More Info > System Report. Then, scroll to the SATA/SATA Express section, and select your SSD. You should see a section called TRIM
Note: In some cases, a restart may be required before TRIM shows as Enabled in the System Profiler. With Mavericks, not all SSDs will report TRIM support, but doing a benchmark both before and after the change should confirm that TRIM is functional.
Added Bonus: Thunderbolt TRIM Support!
As an added bonus in OS X Mountain Lion or later, including OS X Mavericks (I have not tested this in previous versions of OS X), raid can now also be enabled for SSDs hooked to your Mac through a Thunderbolt PCIe controller, such as the excellent Magma ExpressBox 3T! For more info on these devices, check out our complete review roundup of Thunderbolt PCIe controllers – perfect for Apple's 2013 Mac Pro!
If you're looking for an SSD to use in your Mac, I recommend checking out the OCZ Vector or the Sandisk Extreme. Also, make sure to check out the full range of affordable SSDs available on Amazon!
In you have an SSD that supports TRIM, follow the below instructions to enable it in OS X Mavericks. Note: This involves the use of terminal commands, so proceed at your own risk.
First, enter the command found in this document in the Terminal app on your Mac (found in Applications/Utilities).
After entering this command, you'll need to enter a second command:
Bitdefender Virus Scanner finds Mac malware as well as Windows viruses with ease. Scan running apps, scan critical locations, scan a specific location or scan the entire system, the award-winning Bitdefender engines will find that malware. Don't put your friends and family at risk by unknowingly passing malware. App Store: Allows apps only from the Mac App Store. This is the most secure setting. All the developers of apps in the Mac App Store are identified by Apple, and each app is reviewed before it's accepted. MacOS checks the app before it opens the first time to be certain it hasn't been modified since the developer shipped it. Mac scanning for virus. You may have been led to believe that you don't have to worry about computer viruses on your Mac. And, to some extent, there's truth to that.
Free office for mac download. Office 2011 for Mac features an enormous number of templates in the Template Galleries for Word, PowerPoint, and Excel. Choose among great-looking resumes and newsletters, complex photo catalogs.
sudo touch /System/Library/Extensions/
The above-linked document also contains some troubleshooting instructions, as well as details on how to disable TRIM support if necessary.
Using a Third Party Tool
Trim Support Mac High Sierra
If you don't find success using the Terminal command to enable TRIM for your SSD, there are two third-party apps that can help you enable TRIM support. I recommend trying Chameleon SSD Optimizer first. If that doesn't do the trick, you can try TRIM Enabler 3.0 or later for Mac. I don't like to recommend third-party tools, as they often make system-level changes above and beyond those performed by the terminal command – and that may not be in your best interest long-term.
Verifying TRIM Support
To ensure that the command was successful, and that TRIM really is enabled on your SSD, click the Finder menu in the Menu bar, then navigate to About This Mac > More Info > System Report. Then, scroll to the SATA/SATA Express section, and select your SSD. You should see a section called TRIM
Note: In some cases, a restart may be required before TRIM shows as Enabled in the System Profiler. With Mavericks, not all SSDs will report TRIM support, but doing a benchmark both before and after the change should confirm that TRIM is functional.
Added Bonus: Thunderbolt TRIM Support!
As an added bonus in OS X Mountain Lion or later, including OS X Mavericks (I have not tested this in previous versions of OS X), raid can now also be enabled for SSDs hooked to your Mac through a Thunderbolt PCIe controller, such as the excellent Magma ExpressBox 3T! For more info on these devices, check out our complete review roundup of Thunderbolt PCIe controllers – perfect for Apple's 2013 Mac Pro!
If you're looking for an SSD to use in your Mac, I recommend checking out the OCZ Vector or the Sandisk Extreme. Also, make sure to check out the full range of affordable SSDs available on Amazon!
For more helpful tips, check out our full collection of tutorials by visiting our How-To category!
