5 Replies Latest reply: Nov 11, 2012 3:43 AM by Alberto Ravasio
AppleMacCider Level 1 (0 points)

Hi

 

A relative has a 2009 iMac and his 1TB Seagate hard drive is covered by the replacement programme.  He is concerned what Apple will do with the hard drive when it is returned to them as he does not want any to access his personal items (like docs, photos and emails etc).

 

He is currently using ML and has everything backed up to an external hd.

 

He plans to reload Snow Leopard which originally came with his iMac.  Using the SL disc, it will give him the option before installing - in Disk Utility to wipe the HD (Gutmann Theory) x 35 times so a very secure wipe.  Is this over the top as going to take days to do this to a 1TB drive.  Are there any better ways to do this. 

 

We have an Apple store and Apple Premiem Reseller and Support Centre, but the reseller has a faster turnaround for repair.  Does anyone know what Apple do with faulty hard drives other than bin them?

 

Thanks in advance.

 

Matt


Mac Pro, OS X Mountain Lion (10.8.2)
  • seventy one Level 6 (13,296 points)

    I doubt you would get a formal reply from Apple on this subject ... and certainly not via these columns.   The normal business approach to faulty components is to debit them back to the supplier for refund, and in a major alert, for compensation.

     

    I think it is unlikely Apple would follow any path but a secure one in terms of the disposal of faulty drives and that would equally extend to Seagate.   You have to believe.

  • Alberto Ravasio Level 4 (3,902 points)

    I honestly don't know. But I think, Single-pass zeros and Single-pass random numbers, Level 0 and 1 from the command line, should be enough, unless you have super classified data .

  • AnaMusic Level 9 (57,110 points)

    AppleMacCider wrote:

     

    ...

     

    He is currently using ML and has everything backed up to an external hd.

     

    ...

     

    Just a word of advice...

     

    Make sure He has a Cloned Backup for when Restoring to the Replacement Hard Drive.

     

    By far the easiest way to make such a Backup, is to use something like

     

    SuperDuper  http://www.shirt-pocket.com/

     

    or CCC  http://www.bombich.com/

     

     

    Or a Time Machine Backup  >  http://support.apple.com/kb/HT1427

     

    This will make life a lot easier...

  • AppleMacCider Level 1 (0 points)

    So, Is a 35 x wipe an over-kill before getting the hard drive replaced?  Nothing Government sensitive on the drive other than just personal information to him and family.

     

    Does anyone know why Apple have removed the 35 x wipe from Lion and Mountain Lion other than it's an overkill.

     

    Thanks

  • Alberto Ravasio Level 4 (3,902 points)

    AppleMacCider wrote:

     

    Does anyone know why Apple have removed the 35 x wipe from Lion and Mountain Lion other than it's an overkill.

     

    Gutmann algorithm 35-pass secure erase is not available as an option from the GUI, but is still available from command line aka Terminal.

     

     

    diskutil secureErase

     

    Usage:  diskutil secureErase [freespace] level MountPoint|DiskIdentifier|DeviceNode

    Securely erases either a whole disk or a volume's freespace.

    Level should be one of the following:

            0 - Single-pass zeros.

            1 - Single-pass random numbers.

            2 - US DoD 7-pass secure erase.

            3 - Gutmann algorithm 35-pass secure erase.

            4 - US DoE 3-pass secure erase.

    Ownership of the affected disk is required.

    Note: Level 2, 3, or 4 secure erases can take an extremely long time.