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Question: Should I enable Trim on Samsung Evo 860?

I just had a Samsung Evo 860 2 TB installed in my iMac 2017. It is the Sole drive (Fusion with the inbuilt Apple SSD caused severe problems with installing Bootcamp).

The SSD was automatically converted to AFPS on installation, & all is running smoothly, however Trim Support is disabled by default. Should I enable it?


Thanks in advance for any help.🙂

iMac (27-inch, Late 2013), macOS High Sierra (10.13.6)

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It is good to come to your own conclusion.

You will have to do your own research and make your own decision on the issue—ultimately it is your loss or gain.

Definitely I would have a up to date backup plan.


What you don't want to do is turn it on and then change your mind a turn it off, which can lead to data corruption.


TRIM will release deleted blocks, It is recommended once enabled do a restart into SafeBoot Mode (hold the Shift key.)

https://support.apple.com/en-us/HT201262

Safe Mode does a Disk Repair and honors this trimforce command, effectively removing all the old deleted data.


The advantage of the TRIM command is that it enables the SSD’s GC (garbage collection) to skip the invalid data rather than moving it, thus saving time not rewriting the invalid data. This results in a reduction of the number of erase cycles on the flash memory and enables higher performance during writes. The SSD doesn’t need to immediately delete or garbage collect these locations it just marks them as no longer valid. This helps ensure that all storage cells are aged uniformly and maximum lifetime achieved.


ref: http://www.thessdreview.com/daily-news/latest-buzz/garbage-collection-and-trim-i n-ssds-explained-an-ssd-primer/

http://osxdaily.com/2015/10/29/use-trimforce-trim-ssd-mac-os-x/


trimforce status from terminal copy & paste:


system_profiler SPSerialATADataType | grep 'TRIM'


To move forward:

trimforce enable

trimforce disable

_____________________


All new SSD will perform well, it is over time when allocated blocks and pages become used, you start to see a loss of performance.


"TRIM doesn’t obviate the need for garbage collection—it works with garbage collection to more properly mark pages as stale. And you don’t need TRIM for garbage collection to work—but TRIM makes an SSD’s garbage collection more efficient."

http://arstechnica.com/gadgets/2015/04/ask-ars-my-ssd-does-garbage-collection-so -i-dont-need-trim-right/


I can say new Apple computers that ship w/ SSD have TRIM enabled by default.


Apple just within the last couple OS X, supply the TRIM command in terminal for 3rd party SSD (eliminating the need for 3rd party methods to enable TRIM) this should tell you something about demand of this functionality.

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Aug 30, 2018 7:30 AM in response to Peachtree55 In response to Peachtree55

It is good to come to your own conclusion.

You will have to do your own research and make your own decision on the issue—ultimately it is your loss or gain.

Definitely I would have a up to date backup plan.


What you don't want to do is turn it on and then change your mind a turn it off, which can lead to data corruption.


TRIM will release deleted blocks, It is recommended once enabled do a restart into SafeBoot Mode (hold the Shift key.)

https://support.apple.com/en-us/HT201262

Safe Mode does a Disk Repair and honors this trimforce command, effectively removing all the old deleted data.


The advantage of the TRIM command is that it enables the SSD’s GC (garbage collection) to skip the invalid data rather than moving it, thus saving time not rewriting the invalid data. This results in a reduction of the number of erase cycles on the flash memory and enables higher performance during writes. The SSD doesn’t need to immediately delete or garbage collect these locations it just marks them as no longer valid. This helps ensure that all storage cells are aged uniformly and maximum lifetime achieved.


ref: http://www.thessdreview.com/daily-news/latest-buzz/garbage-collection-and-trim-i n-ssds-explained-an-ssd-primer/

http://osxdaily.com/2015/10/29/use-trimforce-trim-ssd-mac-os-x/


trimforce status from terminal copy & paste:


system_profiler SPSerialATADataType | grep 'TRIM'


To move forward:

trimforce enable

trimforce disable

_____________________


All new SSD will perform well, it is over time when allocated blocks and pages become used, you start to see a loss of performance.


"TRIM doesn’t obviate the need for garbage collection—it works with garbage collection to more properly mark pages as stale. And you don’t need TRIM for garbage collection to work—but TRIM makes an SSD’s garbage collection more efficient."

http://arstechnica.com/gadgets/2015/04/ask-ars-my-ssd-does-garbage-collection-so -i-dont-need-trim-right/


I can say new Apple computers that ship w/ SSD have TRIM enabled by default.


Apple just within the last couple OS X, supply the TRIM command in terminal for 3rd party SSD (eliminating the need for 3rd party methods to enable TRIM) this should tell you something about demand of this functionality.

Aug 30, 2018 7:30 AM

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Question: Should I enable Trim on Samsung Evo 860?