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#28030 - 01/29/14 08:15 AM 7 Pass Zero-out Drive on a Latest System?
slolerner Offline


Registered: 08/25/09
Loc: New York City
The online Disk Utility greys out the all options to erase the disk except a simple "Erase".

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#28031 - 01/29/14 11:20 AM Re: 7 Pass Zero-out Drive on a Latest System? [Re: slolerner]
cyn Online

Administrator

Registered: 08/03/09
Your subject says Latest System but you posted in the "Mac OS X 10.0 - 10.5.x" forum, so I'm a tad confused. Exactly which OS are you asking about? And for the sake of thoroughness, which Mac?
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#28032 - 01/29/14 11:44 AM Re: 7 Pass Zero-out Drive on a Latest System? [Re: cyn]
slolerner Offline


Registered: 08/25/09
Loc: New York City
Sorry, Cyn. It's Maverick, just shipped, MacBook Pro Retina 15" 2.6 GHz, 500 GB SSD drive.


Edited by slolerner (01/29/14 12:39 PM)

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#28034 - 01/29/14 03:02 PM Re: 7 Pass Zero-out Drive on a Latest System? [Re: slolerner]
dkmarsh Offline

Moderator

Registered: 08/04/09

It's the SSD—Secure Erase and Erase Free Space are not available in Disk Utility for SSDs. Apple claims that "[t]hese options are not needed for an SSD drive because a standard erase makes it difficult to recover data from an SSD," but the truth is a little more complicated. See Secure erase data on a Solid State Drive? for more info.
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#28038 - 01/29/14 05:37 PM Re: 7 Pass Zero-out Drive on a Latest System? [Re: dkmarsh]
slolerner Offline


Registered: 08/25/09
Loc: New York City
Thanks, followed the link to the slashdot article http://beta.slashdot.org/story/147848. Pretty much explains it. It sounds like you really can't erase free space either, a problem that was solved when one of my 'analog' backup drives was churning all the time and had a feeling there was something there it didn't "like." Erasing the free space quieted it down. I'm not trying to erase for security reasons. I need to reinstall everything on the drive because my first transfer of user data found corrupted data from the previous computer. Having seen that churning on my external able to be resolved by wiping free space, I have concerns that the corrupt files from the previous attempt could come back to bite me. Not a great beginning...


Edited by slolerner (01/29/14 05:43 PM)
Edit Reason: added link

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#28039 - 01/29/14 05:38 PM Re: 7 Pass Zero-out Drive on a Latest System? [Re: slolerner]
slolerner Offline


Registered: 08/25/09
Loc: New York City
Someone want to move this string to the correct forum? Sorry for the error.

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#28046 - 01/29/14 10:48 PM Re: 7 Pass Zero-out Drive on a Latest System? [Re: slolerner]
cyn Online

Administrator

Registered: 08/03/09
No sweat, thread moved to the "Mac OS X System" forum.
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#28091 - 02/02/14 05:01 PM Re: 7 Pass Zero-out Drive on a Latest System? [Re: cyn]
cyn Online

Administrator

Registered: 08/03/09
I moved a couple of off-topic posts over to a new thread in the FineTunedMac Feedback forum: How do I get the red (1) to go away?
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