Time Capsule - additional partition disappears

Discussion in 'Mac Accessories' started by ccwestcliff, Oct 19, 2012.

  1. ccwestcliff macrumors member

    Joined:
    Sep 19, 2012
    Location:
    Toronto, ON
    #1
    So, have a new TC 4Gen 2TB, successfully partitioned into 50/50, 1 half for Time Machine and the other as external drive if you like.

    The Time Machine backup is fine and so was copying 100GB of data to the other partition.

    My problem is, that as soon as the Time Machine backup has finished, the other partition disappears and I loose access to the files on that partition.

    Am I missing something here or is this the way it is?
     
  2. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #2
    There is no supported way to partition a Time Capsule. I have read about people somehow starting Disk Util in the middle of a backup to get it done, but it seems spotty. It sounds like you made a partition inside the Time Machine sparse bundle image and when that image dismounts at the end of the backup the partition is no longer visible.
     
  3. bobr1952 macrumors 68020

    bobr1952

    Joined:
    Jan 21, 2008
    Location:
    Melbourne, FL
    #3
    My understanding (correct me if I'm wrong) is that you wouldn't really need a separate partition for other data since Time Machine does not destroy files on the Time Capsule drive--just expands the image file.
     
  4. aristobrat macrumors G4

    Joined:
    Oct 14, 2005
    #4
    The issue with that is that the backup image file will eventually grow, until all of the space is used. Once that occurs, it makes using your TC to host files other than your backups difficult.

    Another option is to buy an inexpensive portable USB drive, and plug it into the back of the TC. The TC will share that drive out wirelessly, but will not use it for backups (so you don't have to worry about it stealing all of the space).

    IMO, it would be cool if your Mac could tell the TC how large the backup file should get. If I had a 2TB TC, and could limit my Mac's maximum backup size to be 1.5TG, that'd still leave 500GB of space for me to dump other stuff on (i.e. sharing with others in the house, etc).
     
  5. mwhities macrumors 6502a

    Joined:
    Jul 13, 2011
    Location:
    Mississippi
    #5
    Best practice (I use it anyways.), id to use the TC asa TM device only and use and external drive for backup/scratch/etc device.

    Good luck and I'm sorry I couldn't help with your issue.
     
  6. bobr1952 macrumors 68020

    bobr1952

    Joined:
    Jan 21, 2008
    Location:
    Melbourne, FL
    #6
    I actually have my Time Capsule doing double duty with the internal drive acting as Time Machine for my 2008 iMac (this is why I originally bought the Time Capsule) and have an external 1TB drive plugged into it--with two partitions--one acts as Time Capsule for my new rMBP and the other for networked data and my iTunes library.
     
  7. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #7
    A work around for this would be to decide how much space you want set aside for other files and make a fixed size sparse image in Disk Util and put that on the Time Capsule drive. So if you make say a 10GB sparse image and put it on the drive that 10GB will stay set aside for file sharing. You could even mount the DMG in the Finder sidebar. I think it would be pretty transparent and meet the need.
     
  8. ccwestcliff thread starter macrumors member

    Joined:
    Sep 19, 2012
    Location:
    Toronto, ON
    #8
    Thanks all for your ideas!

    I might indeed go with the external drive option and use the TC just for backing up everything under the Sun :D (including the external drive btw ...)
     
  9. Brian33 macrumors 6502a

    Joined:
    Apr 30, 2008
    Location:
    USA (Virginia)
    #9
    Just to let you know... Time Machine is not able to back up external hard drives that are connected to the Time Capsule USB port. Of course, TM can back up an external hard drive connected to a Mac via USB, Firewire, etc.; if that's what you meant you're OK.
     

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