Journal Encrypted HD used for time machine

Discussion in 'Mac OS X Lion (10.7)' started by Graph101, Aug 21, 2011.

  1. Graph101 macrumors newbie

    Jun 29, 2010
    I reformatted an HD w JOURNAL Encrypted to be used for time machine. Now, do i need to use "Encrypt backup disk"

    What is the difference?

    I dont want to double encrypt something. I would much rather encrypt the entire drive and anything inside it is just unencrypted....
  2. WesCole macrumors 6502a

    Jul 1, 2010
    I just use the encrypted hard drive and regular backups. I figure the hard drive is already encrypted, so I should be fine.
  3. jc1350 macrumors 6502a

    Feb 4, 2008
    In the GUI, you can encrypt a disk with data only if it's the boot disk or a Time Machine disk. To encrypt the Time Machine disk, you would normally select the option in Time Machine Prefs.

    Since you already formatted the disk with encryption enabled, you don't have to do anything else.
  4. basher macrumors 6502


    May 27, 2011
    Glendale, AZ USA
    Once the unencrypted disk has been used for TM you won't be able to encrypt the TM disk unless you start the TM backups from scratch.
  5. jc1350 macrumors 6502a

    Feb 4, 2008
    That was not my experience. My TM backup, on the now-encrypted disk, goes back to March and that limit is due to the disk's small capacity.

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