Writing zeros to an external disk. . .

Discussion in 'macOS' started by ghboard2010, Oct 28, 2010.

  1. ghboard2010 macrumors member

    Joined:
    Aug 7, 2010
    Location:
    Dont look now, I'm right behind you
    #1
    When attempting to zero out the data on an external FW800 drive, I see these little gems.

    Hmmm. . . This is "quick" ?!?; Really?.

    Gee, good thing I didn't select the 7-, or 35-pass option!

    Does anyone have a suggestion about how to speed this up? I really do not think eight hours to write zeros to any size disk in a single pass qualifies as quick.:confused:


    BTW, the 8 hour indication was at the 1 hour 20 minute point in this process; sheesh, even 1hr.+ ain't what I'd call "quick"
     
  2. spinnerlys Guest

    spinnerlys

    Joined:
    Sep 7, 2008
    Location:
    forlod bygningen
    #2
    Writing 2TBs of data via Firewire 800 will take time, and 8 hours sounds about right, I come up with 500 minutes using a write speed of 70MB/s.
    Even if you would not have been limited by FW800 and only by the maximum HDD speed (around 105MB/s), it would still take 322 minutes.

    Btw, your signature alludes to you having 12MB of RAM, are you sure about that?
     
  3. Grannyville7989 macrumors 6502a

    Grannyville7989

    Joined:
    Aug 2, 2010
    #3
    It took my Windows 7 computer around 45-60 minutes to zero out my 250GB internal drive in a single pass, so I'll say that 8 hours for a 2TB drive is pretty damn quick. When I got my external USB 1.5TB Western Digital drive, I did a full format on it and it took nearly 24 hours to complete. :eek:
     
  4. ghboard2010 thread starter macrumors member

    Joined:
    Aug 7, 2010
    Location:
    Dont look now, I'm right behind you
    #4
    Doh!:eek:

    Well we'll fix that; there fixed

    Well gee, I guess when the dialog panel says "This is quick...", 'quick' is a actually a useless, meaningless term with no basis in the real world. 'Tis a pity that!:(
     

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