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Crucial ssd enable trim?

25086 Views 27 Replies Latest reply: Nov 21, 2013 7:01 AM by Grant Bennet-Alder RSS
  • Mini-Mac Level 3 Level 3 (780 points)
    Currently Being Moderated
    Mar 26, 2013 4:53 PM (in response to Shootist007)

    Just my 2 cents. 

     

    I have two M4 Crucial SSD's.  One in a 2009 MBP and one in a late 2012 MBP, and have NOT enabled TRIM on either one for well over a year on the 2009 and 8 months on the 2012 and here's why.

     

    http://lifehacker.com/5803331/how-to-enable-trim-on-your-macs-solid+state-drive

     

    Since the M4 has built in garbage collection, enabling OSX TRIM may actually conflict with the built in garbage collection and may effect your SSD's performance.

     

    BTW, both SSD's preform like they were new.

     

    Therefore if you have a SSD with built in garbage collection it's not recommended to enable TRIM.

  • Grant Bennet-Alder Level 8 Level 8 (48,095 points)
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    Mar 26, 2013 5:16 PM (in response to Grant Bennet-Alder)

    After running some experiments, I now believe you are correct.

     

    The "TRIM Support" item in Apple System Profiler appears to be set based on some sort of Test of whether TRIM commands actually work.

     

    I also found that setting TRIM Enabler On or Off seems to require you to be logged in as Admin. It does not throw an error, but does not change the Status readily for a non-Admin who enters the Admin Username and password.

     

    It also does not seem to reflect the new status in System Profiler until after a Restart.

    Mac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
  • vladazzz Level 1 Level 1 (0 points)
    Currently Being Moderated
    Mar 26, 2013 5:16 PM (in response to Mini-Mac)

    that is really good thing to know...but how do i know if my ssd has built in garbage collection?

  • Grant Bennet-Alder Level 8 Level 8 (48,095 points)
    Currently Being Moderated
    Mar 26, 2013 5:30 PM (in response to Mini-Mac)

    Since the M4 has built in garbage collection, enabling OSX TRIM may actually conflict with the built in garbage collection and may effect your SSD's performance.

    ...

    Therefore if you have a SSD with built in garbage collection it's not recommended to enable TRIM.

     

    Do you know of any articles that back that up?

     

    I have only heard from OWC statements like "our drives do not need TRIM". My son proceeded to wreck two of those OWC drives in a year without TRIM Enabled, while mine are all still perking along (but I use them only as Boot Drives).

    Mac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
  • Shootist007 Level 6 Level 6 (16,640 points)
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    Mar 26, 2013 10:33 PM (in response to Grant Bennet-Alder)

    Thank you thank you thank you.

    I have been saying the same thing when someone points to that OWC article about Not Needing TRIM.

     

    That is the only article on the Internet that says that and people keep saying this "Manufacturer" "States their SSDs don't need TRIM". OWC is not a Manufacturer of anything I know of let alone SSDs.

    Simple fact is All SSDs benifit from having TRIM Enabled.

    OWC wrote that article to promote the sales of their ReBranded SSDs to unsuspecting Apple owners.

    No Real manufacturer of SSDs has ever said anything like that in any article, KBase or Tech White Paper.

    Grant Bennet-Alder wrote:

     

    Since the M4 has built in garbage collection, enabling OSX TRIM may actually conflict with the built in garbage collection and may effect your SSD's performance.

    ...

    Therefore if you have a SSD with built in garbage collection it's not recommended to enable TRIM.

     

    Do you know of any articles that back that up?

     

    I have only heard from OWC statements like "our drives do not need TRIM". My son proceeded to wreck two of those OWC drives in a year without TRIM Enabled, while mine are all still perking along (but I use them only as Boot Drives).

  • Mini-Mac Level 3 Level 3 (780 points)
    Currently Being Moderated
    Mar 27, 2013 6:45 AM (in response to Shootist007)

    Shootist007 wrote:

    Grant Bennet-Alder wrote:

     

    Since the M4 has built in garbage collection, enabling OSX TRIM may actually conflict with the built in garbage collection and may effect your SSD's performance.

    ...

    Therefore if you have a SSD with built in garbage collection it's not recommended to enable TRIM.

     

    Do you know of any articles that back that up?

     

    I have only heard from OWC statements like "our drives do not need TRIM". My son proceeded to wreck two of those OWC drives in a year without TRIM Enabled, while mine are all still perking along (but I use them only as Boot Drives).

     

    I've read several articles on Critical's website regarding TRIM and if it's needed.

     

    http://forums.crucial.com/t5/Solid-State-Drives-SSD-Knowledge/TRIM-and-SSD-perfo rmance-why-is-it-important/ta-p/100276

     

    http://forums.crucial.com/t5/Solid-State-Drives-SSD-Knowledge/My-SSD-used-to-be- so-much-faster-What-happened/ta-p/118310

     

    As far as your reference regarding "Since the M4 has built in garbage collection, enabling OSX TRIM may actually conflict with the built in garbage collection and may effect your SSD's performance".

     

    go here:

     

    http://lifehacker.com/5803331/how-to-enable-trim-on-your-macs-solid+state-drive


  • Grant Bennet-Alder Level 8 Level 8 (48,095 points)
    Currently Being Moderated
    Mar 27, 2013 7:07 AM (in response to Mini-Mac)

    Mini-Mac

     

    The first article you cited says that TRIM is important to proper operation, but if you do not have it, your excellent Crucial SSD may be able to get by with only its internal Garbage collection.

     

    This problem [slower write speeds due to no available superBlocks] however, can be overcome with TRIM – a feature that prompts the SSD to clear previously used data blocks.

     

    The second article you cited, tells how your SSD needs to be powered on and occasionally IDLE for the Garbage collection to be particularly effective, especially if you do not use TRIM.

     

    The purpose of this [Active Garbage Collection] feature is to maintain the SSD's performance in environments where for any reason TRIM is not a possibility

     

    The lifeHacker article is from May of 2011 and has never been updated. The author states that Apple's TRIM may conflict with built-in Garbage Collection, but provides no evidence to support this assertion.

     

    --------

     

    In summary, that is faint support for the "do not use TRIM with Garbage Collection" school of thought.

     

    The Industry is moving toward improving and entrenching TRIM, and supporting it more and more widely.

     

    As for me, I will continue to enable it on my SSDs when it is not precluded because of RAID.

    Mac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
  • Mini-Mac Level 3 Level 3 (780 points)
    Currently Being Moderated
    Mar 27, 2013 8:06 AM (in response to Grant Bennet-Alder)

    I understand the date and information provided in the articles.  I am only going on the information I've read and the fact that I haven't enabled TRIM on either of my MBP's and have not experienced any problems with reliability of data nor performance.

     

    I really don't have a problem enabling TRIM.  I've just taken the information provided and my own experience and have choose not to enable TRIM.

     

    In your experience and knowledge you are endorsing TRIM as a requirement to maintain data reliability, disk performance, and longevity for ALL 3rd party SSD's for OSX? 

  • BocaBoy Level 1 Level 1 (25 points)
    Currently Being Moderated
    Aug 13, 2013 4:30 PM (in response to Mini-Mac)

    Pure and simple, you need to run TRIM Enabler on any non-Apple drive. This is a top-notch piece of software that I've used on a SanDisk 480 SSD on Mountain Lion with a MBP. The software is free and for most users will enable TRIM and optimize garbage collection on your drive. It's worked perfectly for me for over a year and version 3 was just released with several enhancements over the original software.

  • vladazzz Level 1 Level 1 (0 points)
    Currently Being Moderated
    Nov 21, 2013 3:08 AM (in response to BocaBoy)

    As i've said already, I've started Trim Enanler, but without luck. Tested also the newest one, but still no luck...

  • clintonfrombirmingham Level 7 Level 7 (26,655 points)
    Currently Being Moderated
    Nov 21, 2013 3:11 AM (in response to vladazzz)

    Very odd - I've always used Trim Enabler without any problems on my Crucial m4 series 512GB SSD.

     

    Have you tried Chameleon SSD Optimizer?


    Clinton

    MacBook Pro (15-inch Late 2011), OS X Mavericks, 16GB RAM 512GB SSD Apple TB Display
  • BocaBoy Level 1 Level 1 (25 points)
    Currently Being Moderated
    Nov 21, 2013 3:20 AM (in response to clintonfrombirmingham)

    Vladazzz, you're the first person I've heard of that is having this issue. I'd drop a line to the developer at www.groths.org to find out the reason the program doesn't seem to work with your drive. I'm currently running Mavericks 10.9.1 in pre-release on a mid-2010 MBP equipped with a SanDisk 480 SSD Extreme and I'm not having any problems.

  • Grant Bennet-Alder Level 8 Level 8 (48,095 points)
    Currently Being Moderated
    Nov 21, 2013 7:01 AM (in response to vladazzz)

    My experience enabling TRIM Enabler has been that a Restart is Required before the settings take effect.

    Mac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
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