Secure Erase Question- Selling my mac later today please respond asap

Discussion in 'macOS' started by BaronvdB, Aug 19, 2009.

  1. BaronvdB macrumors 6502

    BaronvdB

    Joined:
    Oct 22, 2007
    #1
    Hey guys, i'm meeting the guy to trade my imac at 11am EST and I just started the secure erase process. I chose the 7 pass option and it says pass 1 of 7 5 hours remaing--here's the question:

    Does it mean 5 hours remaining for the 1st pass or 5 hours remaining before all 7 passes are complete? If it takes 5 hours per pass I don't have time--what do I do then? Can I stop in the middle and chose to zero out data?

    If it does mean 5 hours for all 7 passes doesn't that seem kinda fast?

    Thanks for the fast responses--i would love to go to bed while it's erasing (almost 2am now)
     
  2. jmann macrumors 604

    jmann

    Joined:
    Dec 8, 2007
    Location:
    bump on a log in a hole in the bottom of the sea
    #2
    I think 7 pass was overkill. A regular simple erase would've sufficed.
     
  3. BaronvdB thread starter macrumors 6502

    BaronvdB

    Joined:
    Oct 22, 2007
    #3
    Yeah...too bad a read that in a few other posts saying that after I already started the 7 pass process...do you know the answer to the main question? Does is mean 5 hours for all 7 passes?
     
  4. Ntombi macrumors 68040

    Ntombi

    Joined:
    Jul 1, 2008
    Location:
    Bostonian exiled in SoCal
    #5
    It depends on the size of your hard drive.

    I just did a 7-pass erase on my iBook's 120 GB hdd, and it took about 5 hours total.
     
  5. BaronvdB thread starter macrumors 6502

    BaronvdB

    Joined:
    Oct 22, 2007
    #6
  6. BaronvdB thread starter macrumors 6502

    BaronvdB

    Joined:
    Oct 22, 2007
    #7
    It's a 2.4ghz machine with a 320gb HD
     
  7. jmann macrumors 604

    jmann

    Joined:
    Dec 8, 2007
    Location:
    bump on a log in a hole in the bottom of the sea
    #8
    Let's hope in your case it's not. :p
     
  8. BaronvdB thread starter macrumors 6502

    BaronvdB

    Joined:
    Oct 22, 2007
    #9
    Alright...i just hit skip and went back and I'm doing a zero out erase instead of the 7 pass....hopefully this dude I'm trading with isn't some type of data recovery expert or something
     
  9. kryptonianjorel macrumors 6502

    Joined:
    Jul 3, 2009
    #10
    It is normal. Took me 7 hours to do 3 low-level formats on an old 20GB hard drive

    One pass is enough, under every circumstance, 1 pass is enough. Unless you're being tracked by the FBI for kiddie porn, or have the blueprints to the military's newest fighter plane, 1 pas is plenty.

    It costs lots and lots of money to bring back data that has been overwritten (they have to use a magnetic machine that determines the strength of the residual magnetic polarity of the bits)

    I pray that whoever needs to secure erase finds this forum so it can be put to rest once and for all :D
     

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