Should i be worry of updates eating up my HD spaces?

Discussion in 'MacBook Pro' started by Twe Foju, Mar 22, 2008.

  1. Twe Foju macrumors 6502

    Twe Foju

    Joined:
    Dec 20, 2007
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    Jakarta
    #1
    what im trying to ask here, is the new update will replace the existing update?

    for example Garage Band update 4.1.1 is about 48.7 MB

    so does it mean if i update it, it totally use up 48.7? or will it delete the previous GarageBand update to be replaced so that it still save up spaces?

    thanks =)
     
  2. taylorwilsdon macrumors 68000

    taylorwilsdon

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    Bay Area
    #2
    Are you really worried about this with a 200gb hard drive?
     
  3. Pickoff macrumors member

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    Mar 21, 2008
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    SoCal
    #3
    Look... That is nota huge issue. More scary is the usual Empty Trash... command in Finder actually does not erase the data, so it is still sitting there, just not listed in any way.
     
  4. Twe Foju thread starter macrumors 6502

    Twe Foju

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    Jakarta
    #4
    seriously? wow.. so how you make them go away permanently? :p

    you see, the problem is i dont have budget to get external HD at the moment

    so im pretty strict about my internal HD space, anyway can someone answer my question yet? :p
     
  5. Pickoff macrumors member

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    #5
    Use "Secure Empty Trash" in the same directory. Its slower but worth it.
     
  6. Azmordean macrumors 6502

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    Silicon Valley
    #6
    Good to know. Most computers don't actually "delete" they just mark data to be overwritten. That means, the data is still there, but it has been marked in such a way that the OS knows its okay to write something else over it. Until that something else is written over it though, the data is still technically recoverable - a problem with sensitive private/financial stuff.

    Does the secure empty trash actually erase the data for real?
     
  7. e12a macrumors 68000

    e12a

    Joined:
    Oct 28, 2006
    #7
    If you didnt use secure erase on deleted files before, you can go through Disk Utility and use "Erase Free Space". It might take a while depending on how large the drive is, but it is a thorough way to get rid of non-securely deleted files.
     
  8. Twe Foju thread starter macrumors 6502

    Twe Foju

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    #8
    there is a problem, i seems not to be able to open the empty secure trash through help

    does it only work when the trash is filled? because my trash is empty at the moment

    oh and, about the erase free space from the disk utility, does it delete the data that hadn't been deleted from the Empty Trash thing?

    and is it safe to perform? i mean, i dont want any of my files to be accidentally being deleted
     
  9. e12a macrumors 68000

    e12a

    Joined:
    Oct 28, 2006
    #9
    Secure Erase only works with files that are inside the trash.

    Erase free space deletes any data that was not deleted securely, and only affects what it says, the free space on your drive (which could have been occupied by a file that was not securely deleted). So it is safe to use.
     
  10. TuffLuffJimmy macrumors G3

    TuffLuffJimmy

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    Portland, OR
    #10
    Way to go off on a tangent guys. Although I am not quite sure how all updates work, most updates simply download, then do their job (change things, add things, remove things) and then they are deleted. So I would expect some change in space you probably won't lose 48.7mb from the garage band update.
     
  11. Twe Foju thread starter macrumors 6502

    Twe Foju

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    #11
    thanks guys

    only 1 last question

    do a zero, 7 pass or 35 pass?

    :D:eek:
     
  12. e12a macrumors 68000

    e12a

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    Oct 28, 2006
    #12
    zeros should be good enough...its up to you, and depending on how much free space you have it can vary in time.
     
  13. PowerBookRelic macrumors 6502

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    Mar 7, 2008
    #13
    Since I have never done an erase free space before, as I have just heard of it, I am doing a 35 times rewrite...it is estimated 5 hrs :eek: I will just leave it on while I am out tonight, but I do have question.

    Is the time it takes to erase free space simply contingent on your HDD speed? I mean, Disk Utility isn't using up much CPU or RAM....
     
  14. Cromulent macrumors 603

    Cromulent

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    #14
    Yes. Size of drive is also a big contributing factor.
     
  15. TuffLuffJimmy macrumors G3

    TuffLuffJimmy

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    #15
    Zero is fastest.
    The question is are you trying to erase sensitive data (financial, personal) or simply trying to free up space. If you're trying to free up some space none of those choices will help you, but if you are trying to get rid of something super secret use 35 pass (although go get a coffee or something as it will take hours.)
     
  16. SVT Amateur macrumors 6502

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    Dec 22, 2006
    #16
    Exactly, erase free space doesn't free up any space, it just writes zeros over the files that you erased which in reality are just marked to be written over and aren't actually erased (this is normal for any computer with magnetic media). This does nothing for performance but is more a security issue. It says Department of Defense standards are the 7 pass, so 35 pass must be rediculous.
     
  17. markrivers macrumors 6502a

    markrivers

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    Valencia, California
    #17
    if you're really trying to erase confidential stuffs, like what you did with your dormmate or what you and the other sorority sisters did back in college.. i would suggest getting a new hard drive instead..
    and the old one.. bury it !:D
     
  18. PowerBookRelic macrumors 6502

    Joined:
    Mar 7, 2008
    #18
    Somewhat odd-
    I went to do a 35 pass earlier, it said 5 hrs for ~30 GB, so I left the house and just came back. When I got back, Disk Utility had an alert up saying I was out of disk space, hmm. So I just ended the erase free space program, and all is back to my ~30 GB free space. So now I am just doing the simplest erase free space, but I am wondering if anyone knows why it wouldn't let me do the 35?

    NOTE: 1.5 GHz PBG4/120GB WDC scorpion 5400RPM/ OS 10.4.11
     
  19. TuffLuffJimmy macrumors G3

    TuffLuffJimmy

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    Portland, OR
    #19
    That usually happens. Really there is no point in doing a 35 pass, unless you're james bond. But I think it did do a full 35 pass. unless 35 pass only works on external drives, and the internal drive if you boot off the OS X install CD.
     

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