El Capitan and TRIM Support

JoelTheSuperior

macrumors 6502
Feb 10, 2014
381
277
London, UK
Honestly I'd be very surprised if they added TRIM support for non-Apple SSDs in after this much time. Looking at what Apple is releasing more recently I really don't think Apple particularly like the idea of people adding their own SSDs anyway.

If you need TRIM support there's third party software that can enable that for you.
 

v3rlon

macrumors 6502a
Sep 19, 2014
591
268
Earth (usually)
Really, trim isn't as necessary as it used to be. If you feel you need it, trim enabler free version will do it. I thought all recent SSDs handled garbage well enough to outlast their useful lifespan anyway these days.

Trim enabler can even be configured to let you know when an OS update disables it.
 

flowrider

macrumors 603
Nov 23, 2012
6,029
2,272
If you need TRIM support there's third party software that can enable that for you.
Yes, there certainly is. But it's a BIG PITA as those of us who use Trim Enabler are well aware. Wonder if the Kext rules will allow Trim Enabler with out the BS required by Yosemite.

Lou
 

flowrider

macrumors 603
Nov 23, 2012
6,029
2,272
Really, trim isn't as necessary as it used to be. If you feel you need it, trim enabler free version will do it. I thought all recent SSDs handled garbage well enough to outlast their useful lifespan anyway these days.

Trim enabler can even be configured to let you know when an OS update disables it.

Your wrong, my friend, all SSDs need Trim as has been established on this forum time and time again. If Trim Enabler is enabled and you do something that involves changing the kexts, your in big trouble. Do some reading and you'll see why.

Lou
 

v3rlon

macrumors 6502a
Sep 19, 2014
591
268
Earth (usually)
Your wrong, my friend, all SSDs need Trim as has been established on this forum time and time again. If Trim Enabler is enabled and you do something that involves changing the kexts, your in big trouble. Do some reading and you'll see why.

Lou
https://www.cindori.org/software/trimenabler/
http://blog.macsales.com/11051-to-trim-or-not-to-trim-owc-has-the-answer
http://www.techspot.com/news/52835-...-need-for-trim-overprovisioning-and-more.html
http://arstechnica.com/gadgets/2015...garbage-collection-so-i-dont-need-trim-right/
http://forum.crucial.com/t5/Crucial-SSDs/Need-to-enable-Trim-on-Yosemite-OS-X/td-p/159789
http://forum.crucial.com/t5/The-Cru/THE-CRU-To-TRIM-or-Not-to-TRIM-on-a-Mac-SSD/ba-p/143989

Can it help? Yes, a little.
Is it NECESSARY? No.
Not according to manufacturers, users, technical folks and so on. Look at the speed difference on the "Trim Enabler" web site.
Trim isn't as needed as it once was.
 
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MagicBoy

macrumors 68040
May 28, 2006
3,902
932
Manchester, UK
I certainly hope OS X El Capitan will have TRIM support for non-Apple branded SSDs. Currently my MacBook Pro has a Samsung 1TB SSD with Mavericks 10.9.5 installed and if Apple refuses to support TRIM for non-Apple branded SSDs I'm not even going to bother.
So massively unlikely I can't even imagine the odds.
 
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freeskier93

macrumors 6502
Jul 13, 2008
321
68
3rd party TRIM support isn't going to happen and it never will. At this point the number of users who can even use third party SSDs is small and is only getting smaller.

Yes, there certainly is. But it's a BIG PITA as those of us who use Trim Enabler are well aware. Wonder if the Kext rules will allow Trim Enabler with out the BS required by Yosemite.

Lou
How is it a PITA? Slightly inconvenient having to re-enable it after an OS update yes, but not a PITA.

As far as needing TRIM in the first place, I have a Seagate 600 series in my 2010 MacBook Pro and keep TRIM enabled. I have the same exact drive in my Windows desktop on RAID (therefore no TRIM support that I'm aware of) and have never noticed a difference there.
 

crjackson2134

macrumors 601
Mar 6, 2013
4,735
1,868
Charlotte, NC
Unless your already heavily invested in 3rd party SSD's, I would recommend moving to Apple/Samsung SSD's for PCIe equipped (Mac Pro 1,1-5,1) machines. If using the SATA Buss for conventional 2.5" SSD drives, you can go with Anglebird drives. They report Apple SSD to the OS and are very solid drives with Trim enabled out of the box.

I have one 840 Pro drive booting older version of OS X and TrimEnabler. It's working for also, but I too prefer having Trim support out of the box. Just a matter of choice, not looking for an argument.
 

freeskier93

macrumors 6502
Jul 13, 2008
321
68
Unless your already heavily invested in 3rd party SSD's, I would recommend moving to Apple/Samsung SSD's for PCIe equipped (Mac Pro 1,1-5,1) machines. If using the SATA Buss for conventional 2.5" SSD drives, you can go with Anglebird drives. They report Apple SSD to the OS and are very solid drives with Trim enabled out of the box.

I have one 840 Pro drive booting older version of OS X and TrimEnabler. It's working for also, but I too prefer having Trim support out of the box. Just a matter of choice, not looking for an argument.
I'm surprised Anglebird is still being allowed to sell those. It's a good option, but personally I can't justify the premium just to save me an extra 30 second restart using Trim Enabler. The 256 GB is running a ~$60 premium over everyone else. You can get a Samsung EVO 250 for $98 or less. Couple weeks ago Newegg sent out 10% off coupons for SSDs and you could get a 250GB EVO for $90.
 

crjackson2134

macrumors 601
Mar 6, 2013
4,735
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Charlotte, NC
I'm surprised Anglebird is still being allowed to sell those. It's a good option, but personally I can't justify the premium just to save me an extra 30 second restart using Trim Enabler. The 256 GB is running a ~$60 premium over everyone else. You can get a Samsung EVO 250 for $98 or less. Couple weeks ago Newegg sent out 10% off coupons for SSDs and you could get a 250GB EVO for $90.
Well the point is that there are options. I have the PCIe SSD, and the 2.5" Samsung w/Trim Enabler. Both are fine for my use, but if I wanted another 2.5" SSD I'd get the Angelbird while it's still available.
 

MagicBoy

macrumors 68040
May 28, 2006
3,902
932
Manchester, UK
I'm surprised Anglebird is still being allowed to sell those. It's a good option, but personally I can't justify the premium just to save me an extra 30 second restart using Trim Enabler. The 256 GB is running a ~$60 premium over everyone else. You can get a Samsung EVO 250 for $98 or less. Couple weeks ago Newegg sent out 10% off coupons for SSDs and you could get a 250GB EVO for $90.
Way to miss the point. I suspect the kext signing issue is slightly more important than the 30 second restart and very possibly worth the extra outlay for some customers. ;)
 
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freeskier93

macrumors 6502
Jul 13, 2008
321
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Way to miss the point. I suspect the kext signing issue is slightly more important than the 30 second restart and very possibly worth the extra outlay for some customers. ;)
Kext signing is only an issue of you want it to be an issue. Those of us who managed just fine for many years before kext signing could really care less.
 

ghostface147

macrumors 68030
May 28, 2008
2,972
2,422
TRIM will not be enabled in El Capitan unless you have an Apple SSD. No more kext modifications allowed. TRIM Enabler and other third party programs are going to be locked out.
 

BasicGreatGuy

macrumors G5
Sep 21, 2012
12,796
12,299
In the middle of several books.
TRIM will not be enabled in El Capitan unless you have an Apple SSD. No more kext modifications allowed. TRIM Enabler and other third party programs are going to be locked out.
That stinks.

I guess it also means that for those of us who have been using the Continuity Tool, (for user installed BT cards) we will be stuck to Yosemite.
 
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crjackson2134

macrumors 601
Mar 6, 2013
4,735
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Charlotte, NC
This is my opinion only, so please don't drag me through the ringer if you happen to disagree.

TRIM is a DESIRABLE and ADVISABLE enhancement to any OS using SSD storage. It's ENHANCEMENTS may not be realized in all use cases. It doesn't speed up the SSD directly in most cases, it rather prevents degradation caused by certain use cases. It's not required for operation of the SSD but it assures optimal operation under all use cases. If your particular use case doesn't degrade the drive, then you won't realize that benefit.

It is not a garbage collection replacement, it is a garbage collection enhancement and it CAN reduce the wear by reducing write amplification.
 
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Gav2k

macrumors G3
Jul 24, 2009
9,217
1,606
Apple will have to do something about trim soon as external ssd's are becoming more and more popular.
 

0970373

Suspended
Mar 15, 2008
2,727
1,407
Just disabled kext signing, and TRIM Enabler works fine on El Capitan.
I was unable to get this to work unless there's a new terminal command to disable kext signing. The TRIM Enabler app isn't working even after disabling kext signing, at least for me. After reboot, it still says that TRIM is not enabled. How did you do it?
 

Tubamajuba

macrumors 68020
Jun 8, 2011
2,099
2,118
here
y


Really? The developer cited it didn't work. Did you disable it manually or using the app??
I was unable to get this to work unless there's a new terminal command to disable kext signing. The TRIM Enabler app isn't working even after disabling kext signing, at least for me. After reboot, it still says that TRIM is not enabled. How did you do it?
I used these commands:

sudo nvram boot-args="rootless=0"
sudo nvram boot-args="kext-dev-mode=1"

and did a reboot. Then, I flipped the switch on TRIM Enabler, rebooted again, and it worked. System Information shows that my Corsair SSD has TRIM enabled, so I'm assuming all is well.

EDIT: Interestingly enough, Disk Utility shows the SSD as still having Rootless enabled. So I don't really know what's going on.
 
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