Accidently erased/zeroed out data on new OWC what?

Discussion in 'Mac Pro' started by musicguy7, Jul 29, 2011.

  1. musicguy7 macrumors member

    Jun 21, 2011
    So while trying to install osx on a new OWC SSD 120 gb, I foolishly did a zero out erase in disk utility...then while reading some more posts online, I realized I shouldn't have done this and it was not good for the new ssd.

    So I was wondering if it's really a big deal, can I move forward with my osx installation, or is there some way to "restore" the SSD.
  2. Tibbar macrumors member

    Jan 28, 2007
    It's not a big deal, assuming you did just a 1-pass zeroing of the whole drive. Even if it were multiple passes over the whole drive, I doubt you did much harm at all.

    You can't "take back" the writes you did to the cells. Don't worry about it. Just install OS X and move on.

    In the future I advise against "securely" deleting files on SSDs. It might wear out some cells disproportionately (and it probably isn't all that secure anyway). If you need security, use full disk encryption.
  3. musicguy7 thread starter macrumors member

    Jun 21, 2011
    So moving forward, would there be any benefit to clear the "data" (zeroes) that the secure erase did by using the instructions in this thread: , before installing my other stuff?

    I was under the impression my new SSD is somehow full of data (zeroes) and it is best to do a correct "secure erase" to actually clear it, and not have excess useless data.
  4. gentlefury macrumors 68030

    Jul 21, 2011
    Los Angeles, CA
    Modern SSDs are not so susceptible to deep read/write failues...but writing to zero is not at all only need to do that to magnetic disks.
  5. musicguy7 thread starter macrumors member

    Jun 21, 2011
    Yeah I realized I should have researched a bit further before installing the SSD, I'm more concerned about the drive right now actually being "full" of data even though it's been zeroed out (technically I read there is data now) and whether I should do a proper secure erase with the trim patch for mac to get it actually "empty".

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