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  1. #1
    2 Star Lounger
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    External HD - MAC and PC format

    I'd like to set up and external HD to back up both MAC and PC data - probably 3 TB.

    I'd like to use the MACBook's Time Machine utility and my PC backup utility.

    Since Time Machine requires the Apple HD format and PC uses NTFS my question is -

    Can I partition the HD into 2 partitions using the 2 different formats and see them with a USB 3.0 connection as plug-and-play?

    If so, what software would you use to do the formatting?

  2. #2
    Super Moderator CLiNT's Avatar
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    First use your MacBook to format half the external drive in HFS+, then create an image to it with Time Machine.
    (make certain the other half remains unformatted)
    Then connect it to a PC and see if the other half of the drive can be recognized and formatted to NTFS through Windows Disk manager.

    This should work.





    How to partition and format a WD drive on Windows (8, 7, Vista, XP) and Mac OSX
    Last edited by CLiNT; 2013-02-20 at 01:29.
    DRIVE IMAGING
    Invest a little time and energy in a well thought out BACKUP regimen and you will have minimal down time, and headache.

    Build your own system; get everything you want and nothing you don't.
    Latest Build:
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  3. #3
    2 Star Lounger
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    Thanks, good info.
    I've never used that disk utility on the MAC, my wife's machine, just 30 years in the PC world.
    The drive I'm looking at is a Seagate Backup Plus. It's a 3 TB single partition NTFS drive.
    They give you a driver that will let the MAC read NTFS but won't work with Time Machine.
    I was thinking I'd need to partition the drive into 2 on the PC then let the MAC reformat one partition to HFS+.
    Would that work?
    I guess it's 6 of one, half dozen...

  4. #4
    Super Moderator CLiNT's Avatar
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    Keep it simple if all you need to do with the drive is place images on it from the respective operating systems.
    The more complexity you build into it the greater the chances of encountering issues.

    To share data between the two you'll need a 3rd FAT32 partition, but you'll be confined to just 4GB data transfers/file sizes.
    There are also paid for solutions, but you can do your own research into this.
    Last edited by CLiNT; 2013-02-27 at 22:42.
    DRIVE IMAGING
    Invest a little time and energy in a well thought out BACKUP regimen and you will have minimal down time, and headache.

    Build your own system; get everything you want and nothing you don't.
    Latest Build:
    ASUS X99 Deluxe, Core i7-5960X, Corsair Hydro H100i, Plextor M6e 256GB M.2 SSD, Corsair DOMINATOR Platinum 32GB DDR4@2666, W8.1 64 bit,
    EVGA GTX980, Seasonic PLATINUM-1000W PSU, MountainMods U2-UFO Case, and 7 other internal drives.

  5. #5
    2 Star Lounger
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    Anybody ever fooled around with exFAT format for this kind of problem?

    I tried to get my XP machine to format a spare partition in an internal HD to exFAT but if keeps failing.
    Maybe I'm missing a secret Windows Update...

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