In OS X 10.10 Yosemite, Apple introduced “kext signing” - Kernel extension signing. This checks that all the drivers on a Mac are either unaltered or approved by Apple. As TRIM-enabling utilities worked at this low level, this locked them out. Trim Enabler 3.3 and older worked by modifying a system driver. It was now necessary to disable the kext signing security mechanism to enable TRIM for these drives, reducing a Mac’s security. Os x trim enabler drivers#īut thanks to Apple opening up access to their drivers and providing us with a kext. Starting with OS X 10.10.4, Apple now provides an official - but unsupported - way of enabling TRIM for any SSD. Apple has restricted the TRIM function only to the Apple identified SSDs. Whether this is safe to do depends on the SSD you’re using in your Mac. Monitor your disks: Trim Enabler provides you with a detailed S.M.A.R.T monitor that will give performance and health relevant statistics and reports about both your Hard and Solid State Drives. module of MAC Lion (till 10.7.4 but not on 10.7.5)in order to enable the TRIM. Advanced Tweaks: You can access advanced OS X tweaks that will improve your SSD’s performance. The application could allow you to free up several. Apple added TRIM support to Mac OS X in Snow Leopard update 10.6.7, but it only works on Apple SSDs. In order to enable TRIM, you can open the Terminal application on your Mac, type in the command sudo trimforce enable, and then enter your admin password to. Apple doesn’t want to be responsible for any issues, which is why OS X hides this functionality behind a command and a scary warning message.Įvery solid-state drive implements TRIM in a slightly different way, and many SSD manufacturers only truly test for compatibility on Windows. Third party SSDs never have TRIM enabled. There is an exception: in Mac OS X 10.10.4 and later have a command you can run in a terminal called trimforce that will enable TRIM support for ALL SSDs, not just Apple SSDs. Search company Algolia found some data corruption bugs with certain Samsung SSDs with TRIM on Linux, and similar issues may occur if you enabled TRIM for such drives on a Mac. There have also been reports of some Crucial drives not functioning properly with TRIM on Linux.
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