Secure Erasing my SSD in my Mac..

Discussion in 'macOS High Sierra (10.13)' started by comda, Apr 19, 2018.

  1. comda macrumors 6502a


    Mar 15, 2011
    Greetings Fellow Members,

    Ive been reading a lot of controversy about SSD's in Macs being secure erased between OS installs. I have a 2012 MacBook Pro 15" fitted with a Samsung SSD, and lately its been beach balling a LOT and even taking a screen shot takes about a minute to populate it on my desktop. So I decided to do a format/reload. However I was wondering whats the best way or if I even should bother doing so. Im reading it could help with the SSD's performance.. Thoughts? Or do you just select erase and reinstall the OS?
  2. prisstratton macrumors 6502a


    Dec 20, 2011
    Winnipeg, Manitoba, Canada
    The SSD would not necessarily be the first thing I would point my finger at. The 2012 model MBP's are well known for having SATA cable failures. The fix is quite easy to do yourself, check out the guides on iFixit. They sell the part for $35, but I would guess that you can find cheaper if you shop around.
  3. treekram, Apr 20, 2018
    Last edited: Apr 20, 2018

    treekram macrumors 68000

    Nov 9, 2015
    Honolulu HI
    If you read the comments to the article you linked, it suggests that if you have TRIM enabled, erase the disk and let it sit for awhile and you'll accomplish the same thing as a secure erase with less wear on the SSD. Erase/write cycles are the enemy of SSD longevity so you should avoid doing that unnecessarily. That the article suggests doing a 35-pass erase on a SSD is pretty ridiculous.

    Before doing this, you should make sure to have sufficient free space on the disk. Also, check your memory usage using the Activity Monitor app.

    There could also be something going on with High Sierra on your MBP.
  4. rpmurray macrumors regular

    Feb 21, 2017
    Back End of Beyond
  5. SkyLinx macrumors member


    Mar 24, 2018
    Espoo, Finland
    From what I understand the ATA secure erase can cause more damage than good depending on the SSD and it's controller etc. As treekram says a full TRIM would do.

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