Best HD size for family time machine?

Discussion in 'Buying Tips and Advice' started by oify, Mar 20, 2008.

  1. oify macrumors newbie

    Joined:
    Mar 20, 2008
    #1
    After the new airport update, I can use my airport extreme as time machine network :D

    I have three computers I'd like to hook up to a hard drive on my airport extreme to use with time machine, but what's the best size to get?

    The three computers use around 250GB altogether, but I know more files will be added over time.

    Would 500GB be enough, or would 750GB or even 1TB be better?
     
  2. TEG macrumors 604

    TEG

    Joined:
    Jan 21, 2002
    Location:
    Langley, Washington
    #2
    I would go for a drive the size of all the HDs together or larger, just to be safe. Also, you can have several HDs connected using a USB hub, giving each system its own Time Machine Drive, which should be about the same size as the systems drive.

    TEG
     
  3. oify thread starter macrumors newbie

    Joined:
    Mar 20, 2008
    #3
    sounds like a good idea, the size of all of them is about 390GB.

    so 500gb would probably be the best, would I be able to find a "bus-powered" version that only uses one usb cord?
     
  4. brn2ski00 macrumors 68020

    brn2ski00

    Joined:
    Aug 16, 2007
  5. TEG macrumors 604

    TEG

    Joined:
    Jan 21, 2002
    Location:
    Langley, Washington
    #5
    No, if you have 3 400GB HDs you want at least 1TB. At that size, you will need a poweradapter to keep it running, as most require more power than USB can supply.

    TEG
     
  6. ziwi macrumors 65816

    ziwi

    Joined:
    Jan 6, 2004
    Location:
    Right back where I started...
    #6
    also, remember that you do not need to backup 'everything' just what you will need - so that will reduce the size requirements too. That being said, still plan on growth.
     
  7. stubeeef macrumors 68030

    stubeeef

    Joined:
    Aug 10, 2004
    #8
    I was unable to get my HD to show up as a TM target in TM prefs, called apple tech support and they told me the update DID NOT support AEBS with external HD and TM! I was so mad I hung up instead of cussing.
    Is there somewhere that says the update 7.3.1 allows AEBS w/External HDD to be used as a TM target?
     

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