how to partition with disk utility after formatting whole volume

Discussion in 'Mac Basics and Help' started by Sossity, Mar 15, 2011.

  1. Sossity macrumors 65816

    May 12, 2010
    I have a 2TB western digital hard drive that I will have formatted to MS-DOS or fat 32 with disk utility, but later on would like a partition to accommodate files bigger than fat 32's file size limit.

    can I do this? & how?

    also, if I have cloned the contents from another hard drive onto this 2TB one that is just formatted as one whole fat 32 volume, can I make a partition with another format for bigger files? or must the drive have no content on it? what I mean is if there is room on the 2TB drive, can I make a partition with disk utility to the free space & leave alone the part that is fat 32 with content on it? or must the whole drive be blank?

    say later on, I want to move my bigger files to another separate drive, can I wipe the partiton off the 2TB drive? & still have the fat 32 partition with it's content?
  2. misee macrumors member

    Jul 4, 2010
    You can use Disk Utility to add a new partition without losing the data that you already have. This should work with Leopard (10.5) and newer.
    To do so, follow these steps:
    1. Select the Volume you want to format in Disk Utility
    2. Click the Partition tab
    3. Click the + button
    4. Click Apply
    For more information, read the Disk Utility help.
    To delete a partition, just click the - button.
  3. Patrick946 macrumors regular

    Jun 21, 2009
    You can as long as your drive is formatted in GUID and HFS+. I had a drive formatted as Master Boot Record for some reason and I was unable to alter partitions without erasing the content on them. Now that I reformatted in GUID, I can change the size and number of partitions on the fly.
  4. Sossity thread starter macrumors 65816

    May 12, 2010
    Right now my drive is formatted to fat 32, will I be able to or remove partitions?

    & if I use mac's format of HFS on the partition, which one would be best?
  5. GGJstudios macrumors Westmere


    May 16, 2008
    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. Malene Espensen macrumors newbie

    May 11, 2009
    i Have 2 50GB partition each of which 50 used and 50 Freespace, i want to resize the partition and create a new 100 GB partition, would it be good to delete the unused partition or format the existing partition...
    In what cases we use resize, delete or format options.. and if there is resize option then why delete option or format..

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