jorgean

Q: SSD Samsung 850 EVO - MBP 13" mid 2012, 8GB RAM, El Capitán

Hi, I have installed my new SSD Samsung 850 EVO in the main bay of my MBP.

I read a lot about the optimization with the SSD but I still have doubts.

 

Do I need to enable TRIM?

I read El Capitan permits to enable TRIM in third-party SSDs so I don't know if this is a good option for me.

Doesn't have Samsung any Gargage collector?

Anyway, if the community tell me I have to enable, what is the correct way to do it? From Terminal using "trimforce enabled" ?

What can I expect if I enable TRIM?

 

NOATIME

Chameleon Optimizer doesn't have a version supporting El Capitan so I don't know what is the best option to enable NOATIME.

 

Turn off "Put hard disks to sleep when possible"

I don't understand the reason to turn off this option. I read this from Apple Support. OS X: Saving energy with Sleep - Apple Support

I understand this option only works with HD but I according to Apple is not a problem with SSD.

This Energy Saver setting powers down the hard drive motor when you aren't reading or writing files from the drive. This setting only works with computers that use mechanical hard drive mechanisms to store data. Consider deselecting this option if you are using an application that works better with continued read and write access to the hard disk, such as a pro audio or video editing app.

Note: Solid-state drives (SSD) do not use a motorized mechanism to read or write data. For Mac computers that only include a built-in solid-state drive, this setting does not affect the built-in drive. It only applies to externally connected, mechanical drives.

 

Thanks!

MacBook Pro (13-inch Mid 2012), OS X El Capitan (10.11.2), SSD Samsung 850 EVO (main bay)

Posted on Jan 19, 2016 7:10 AM

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Q: SSD Samsung 850 EVO - MBP 13" mid 2012, 8GB RAM, El Capitán

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  • by keg55,

    keg55 keg55 Jan 19, 2016 7:26 AM in response to jorgean
    Level 6 (8,407 points)
    Mac OS X
    Jan 19, 2016 7:26 AM in response to jorgean

    To enable TRIM beginning with OS X Yosemite 10.10.4 and beyond, you would use the below Terminal command. Don't use any 3rd party TRIM apps. If you do a lot of writing to your SSD, TRIM could be useful to you. But if you will be mostly reading from your SSD, the built-in Garbage Collection should be adequate. I haven't used TRIM on my 3rd party SSD (Crucial SSD) in a Mac Mini and the SSD is still performing as it did day 1. Others in this forum may disagree with my opinion.

     

    trimforce enable      <-- or disable to turn off TRIM support

     

    As far as the Energy Setting of "put hard disk to sleep when possible", again in my opinion, there's no need to have this option checked with an SSD.

  • by jorgean,

    jorgean jorgean Jan 21, 2016 4:28 AM in response to keg55
    Level 1 (0 points)
    Jan 21, 2016 4:28 AM in response to keg55

    Thanks for your answer Keg.

    And do you know how can I do to active NOATIME?

    Do you have it enable?

     

    Thanks

  • by keg55,

    keg55 keg55 Jan 21, 2016 4:51 AM in response to jorgean
    Level 6 (8,407 points)
    Mac OS X
    Jan 21, 2016 4:51 AM in response to jorgean

    I have never used NOATIME so I don't have it enabled. If you're having trouble using or enabling it, this link might help.