Questions regarding external disk

Discussion in 'MacBook Pro' started by ramzhh, Mar 13, 2011.

  1. ramzhh macrumors regular

    Apr 21, 2010

    I've recently bought a 1.5 TB My Book Essential external hard drive to back up some data and also to transfer in/out different devices at home.

    So I have a few questions:

    1.- As I expected, OS X told me that it couldn't write to the disk, since the format isn't compatible. This is no problem, as I will be dividing the disk into 2 partitions, and formatting each one, one for my Windows machine, in FAT32 or NTFS, and one for my Mac. Now here's the thing - What format do I choose for the Mac partition? I have several options and don't know which one to choose.

    2.- I'm considering to use the drive as an "official" Time Machine drive, instead of just copying files onto it. Now here's the question - How do I make it so instead of it just making different versions of my backup, to it to replace the previous backup each time I do it, so I don't end up with the whole space filled up? I don't need different versions of my backup, I don't do that important work.

    Your sincerely,

  2. robbieduncan Moderator emeritus


    Jul 24, 2002
    1) HFS+ Journalled

    2) To the best of my knowledge you can't.
  3. miles01110 macrumors Core


    Jul 24, 2006
    The Ivory Tower (I'm not coming down)
    2) Partition your drive and only give TM enough space to save one or two backups.
  4. simsaladimbamba

    Nov 28, 2010
    1. "Mac OS Extended (Journaled)", though "Mac OS Extended" works too and is preferable with some external HDD use like video editing.
    Maybe GGJstudios will post his file system FAQ, as I currently don't have access to my TE library.

    2. You could also use CarbonCopyCloner or SuperDuper to make a bootable backup, which will not accumulate past versions of your files.
  5. GGJstudios macrumors Westmere


    May 16, 2008
    Your wish is my commmand!

    FAT32 (File Allocation Table)
    • Read/Write FAT32 from both native Windows and native Mac OS X.
    • Maximum file size: 4GB.
    • Maximum volume size: 2TB
    NTFS (Windows NT File System)
    • Read/Write NTFS from native Windows.
    • Read only NTFS from native Mac OS X
    • To Read/Write/Format NTFS from Mac OS X: Install NTFS-3G for Mac OS X (free)
    • Some have reported problems using Tuxera (approx 33USD).
    • Native NTFS support can be enabled in Snow Leopard, but is not advisable, due to instability.
    • AirPort Extreme (802.11n) and Time Capsule do not support NTFS
    • Maximum file size: 16 TB
    • Maximum volume size: 256TB
    HFS+ (Hierarchical File System, a.k.a. Mac OS Extended)
    • Read/Write HFS+ from native Mac OS X
    • Required for Time Machine or Carbon Copy Cloner backups of Mac internal hard drive.
    • To Read/Write HFS+ from Windows, Install MacDrive
    • To Read HFS+ (but not Write) from Windows, Install HFSExplorer
    • Maximum file size: 8EiB
    • Maximum volume size: 8EiB
    exFAT (FAT64)
    • Supported in Mac OS X only in 10.6.5 or later.
    • exFAT partitions created with OS X 10.6.5 are inaccessible from Windows 7
    • Not all Windows versions support exFAT. See disadvantages.
    • exFAT (Extended File Allocation Table)
    • AirPort Extreme (802.11n) and Time Capsule do not support exFAT
    • Maximum file size: 16 EiB
    • Maximum volume size: 64 ZiB
  6. simsaladimbamba

    Nov 28, 2010
    And yet you're still the bastard I don't know.
    And a proper Cylon would drone "By your command."
  7. GGJstudios macrumors Westmere


    May 16, 2008
    Isn't it good to know some things never change?
    I prefer to be an improper Cylon! :D
  8. ramzhh thread starter macrumors regular

    Apr 21, 2010
    Thank you, thank you, thank you!!!!

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