Can I use a usb external hard drive larger than 2TB?  I have tried to use a 3TB but it shows up as 800GB.

Can I use a usb external hard drive larger than 2TB?  I have tried to use a 3TB but it shows up as 800GB.  Even tred to reformat in disk utility but only shows as 800 gb as well.  It is a Seagate 3TB harddrive and enclosure.  Nothing on the Seagate site about it other than it says Mac os through 10.6 is supported  for larger than 2TB (might be old).

You might have better luck in the Snow Leopard community. I'll ask the hosts to relocate your post.
10.6 Snow Leopard

Similar Messages

  • Can I use a Usb external hard drive on my macbook pro?

    I have a new macbook pro and have tried to connect my usb external hard drive , it shows up on the home screen and i can view and read only i cannot save anything into the external hard drive can anyone help.

    Yes. You have to prep it for your Mac. Currently it's setup for Windows.
    Drive Partition and Format
    1. Open Disk Utility in your Utilities folder.
    2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
    3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Apply button and wait until the process has completed.
    4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
    5. Set the format type to Mac OS Extended (Journaled.) Click on the Security button, check the button for Zero Data and click on OK to return to the Erase window.
    6. Click on the Erase button. The format process can take up to several hours depending upon the drive size.

  • Can no longer access USB external hard drive

    Hi - I am running OS X 10.8.4 on my iMac (21.5-inch, Late 2009), and have been using a La Cie USB  external hard drive for several years for my Time Machine backups without issues.  All of a sudden yesterday, the external hard drive disappeared from Finder and my Desktop,  and as a result, no more Time Machine backups  I rebooted both the external hard drive and iMac several times  and changed the USB cable but with no success.  Disk Utility and Time Machine cannot see the external hard drive but it does appear under System Information => USB (see below).  I connected it to my Windows 8 laptop. The Windows laptop can see the external hard drive under Disk Management as an uninitialized disk.  But I will not allow me to initialize it and therefore cannot acces it.
      Product ID:          0x0951
      Vendor ID:          0x059f  (LaCie)
      Version:           0.00
      Serial Number:          152D203380B6
      Speed:          Up to 480 Mb/sec
      Manufacturer:          LaCie
      Location ID:          0x24300000 / 4
      Current Available (mA):          500
      Current Required (mA):          2
    Any help to restore the external hard drive would be appreciated.
    Ron

    Thank you for your quick response.  Disk Utility does not see the hard drive.  Windows 8 does see it under Device Manager and says that it is working propoerly but it will not allow me to initialize it.   As indicated  to Lin Davis,  I'll buy a new external hard drive.

  • I can't find my USB external hard drive.

    I have macbook pro with OSX 10.6.8 . I have been using a Seagate Free Agent GoFlex Desk 2TB usb Hard Drive as my Time machine backup drive. I had it connected to my airport base station and it was working. I had to move the Base Station to a different location and now the hard drive can't be found. I have even tried doing a direct connection to the Notebook USB drive. The light go on on the front of the drive but I can not find it in finder or time machine. Any suggestions will be helpful. Thanks.

    I have a somewhat similar problem. I've been running my MacBook off an external USB drive. I haven't used it in a while but now I get the flashing question mark as well. Safe mode tells me to restart the laptop. PRAM (sic) reset doesn't work. The drive mounts without a problem on my Mac Pro.

  • USB external hard drive and thumb drive don't work any more...

    I have a dual 2GHz PowerPC G5...and i've been using my USB external hard drive and thumb drives for a year with no problems....but now when i plug them in, my mac does not see them...the lights on the external hard drive and thumb drives come on as normal but nothing else...it does this on all the USB ports(front and back) BUT my iPod, keyboard and mouse, and HP printer (that use the same USB ports) works fine....(also i'm running Mac OS X 10.5.2)....help....

    You can't transfer songs from iPod to computer using iTunes, except for songs that you purchased from the iTunes Store (you can also re-download them using the iTunes Store Purchased screen).  However, there are third-party methods and utilities that can transfer song files from iPod to computer.  If you do a Google search on something like "ipod transfer," you should get some links.
    Once the song files are on your computer, drag the files (or the folder containing the files) to the iTunes window, to add them to the iTunes library.

  • I need to back up my imac running Tiger (no time machine) so that we can upgrade OS. It is set up for multiple accounts.  How do I capture all files in each account using newly purchased USB external hard drive?

    I need to back up my imac running Tiger (no time machine) so that we can upgrade OS. It is set up for multiple accounts.  How do I capture all files in each account using newly purchased USB external hard drive?  Thanks!

    Backup Software Recommendations
    Carbon Copy Cloner
    Data Backup
    Deja Vu
    SuperDuper!
    Synk Pro
    Tri-Backup
    Others may be found at VersionTracker or MacUpdate.
    Visit The XLab FAQs and read the FAQ on backup and restore.  Also read How to Back Up and Restore Your Files.
    Or you can simply use the Restore option of Disk Utility to clone the drive to the backup:
    Clone using Restore Option of Disk Utility
    Open Disk Utility from the Utilities folder.
    Select the destination volume from the left side list.
    Click on the Restore tab in the DU main window.
    Check the box labeled Erase destination.
    Select the destination volume from the left side list and drag it to the Destination entry field.
    Select the source volume from the left side list and drag it to the Source entry field.
    Double-check you got it right, then click on the Restore button.
    Destination means the external backup drive. Source means the internal startup drive.

  • I have just upgraded from a Macbook to a Macbook Air. I have been using a iomega external hard drive for Time Machine, which use a Firewire. However, Macbook Air's do not have a Firewire port and i cannot find an adaptor anywhere. Can anyone help?? Thanks

    I have just upgraded from a Macbook to a Macbook Air. I have been using a iomega external hard drive for Time Machine, which use a Firewire. However, Macbook Air's do not have a Firewire port and i cannot find an adaptor anywhere. Can anyone help?? Thanks

    There has never been a reliable firewire ---> USB adapter suitable for external high speed storage.  This was a major issue when the MacBooks lost the firewire port a number of years ago (Apple subsequently brought it back).
    The only high speed port on the Air is the ThunderBolt port.  There are external ThunderBolt drive options out there, but they're somewhat more expensive than traditional USB/FireWire options.

  • Can an Apple Time capsule be used as a external hard drive?

    Hello I have a 4th Generation time capsule and I've had it for some time now and never used it and I was wondering if it could be used as a external hard drive instead of just a back up disk. Also I am planning to install a copy of Windows 7 on my Mid 2011 21.5" iMac and I was wondering if Windows would recognize the TC as a external hard drive and would alow me to use it as such.

    It is not an external hard disk.. you cannot use it via USB if that is what you mean.
    It is now and forever more a Network drive. You can store files on it as a network drive.. with the following provisos.
    Store files on the TC.
    https://discussions.apple.com/message/24380694#24380694
    This is asked several times a day.. obviously people are struggling with their latest SSD being too small.
    The TC is not suitable for network file server.. but many people having no choice press it into service as such.
    It cannot be partitioned. It was and is and ever shall be a backup device for Time Machine.
    Major issues.
    1. No backup.. no way Time Machine can backup a network drive. No place to backup to.. So all your files will be at risk. And you will need to buy a third party like CCC to do backup.
    2. The TC cannot be partitioned and mixing TM backups and data is not great.
    3. The drive is slow to spin up and quick to spin down.. there is no controls.
    4. iPhoto in particular can easily corrupt its entire library with wireless networking causing a disconnection to one photo. Even if you do this;;; do not move your photo library... you have been warned!!
    5. iTunes will constantly lose connection to the library. The disk is too slow to respond.. itunes on the computer will constantly spit out errors. Even in the midst of streaming the TC can spin down the disk due to caching.
    6. Do not use any live files on the TC no matter what else you do.. if you edit files in whatever program the file must be on the local hard disk.
    7. The only suitable location for most libraries is a computer. You can plug in an external hard disk.
    Read pondini for some work arounds.
    Q3 here. http://pondini.org/TM/Time_Capsule.html
    Windows can also use the TC for files. Much the same warnings apply.

  • Can this device be used as an external hard drive with a macbook pro laptop to use files on the airport?

    can this device be used as an external hard drive with a macbook pro laptop and use files on the airport time capsule?

    If you mean an AirPort base station other than the Time Capsule, it doesn't have internal storage.
    If you mean a Time Capsule, its internal drive can be used for regular file storage but shouldn't be; as with all drives, it'll eventually fail. You're better off using a standalone drive and setting Time Machine to back it up as well.
    (112309)

  • After I installed Lion, my MacBook Pro can no longer detect my external hard drives or my USB flash drives. What should I do?

    After I installed Lion, my MacBook Pro can no longer detect my external hard drives or my USB flash drives. What should I do?

    And me -- My Mac at work running Snow Leopard reads the drive normally. My home Mac (on Lion) can't even find it....
    Yet another Leo let-down.....

  • What format i should use for my external hard drive that can be used interchangeably between mac and pc?

    What format i should use for my external hard drive that can be used interchangeably between mac and pc?

    Usually Fat32/MS-DOS as mentioned, but that has several limitatiuns, like 4GB filesize limit.
    One option is MacDrive for you PCs... allows them to Read/Write HFS+...
    http://www.mediafour.com/products/macdrive/
    More options...
    NTFS-3G Stable Read/Write Driver...
    http://www.ntfs-3g.org/
    MacFUSE: Full Read-Write NTFS for Mac OS X, Among Others...
    http://www.osnews.com/story/16930

  • Can a use a partitioned external hard drive to create a disk image? I tried, doesn't seem to work using disk manager.

    Can a use a partitioned external hard drive to create a disk image? I tried, doesn't seem to work using disk manager.

    OK, it's very bad computing to use a backup disk for anything but a backup. The reason being is if/when the HD crashes you will have lost not only all your backup but the data files. While I commend you for wanting redundant backup, you really need separate EHDs for doing so. Format each EHD using Disk Utility to Mac OS Extended (Journaled) using the GUID parttition. When you connect, OS X will ask if you want to use that drive as a Time Machine backup drive, select yes and then let it backup. On the second EHD format the same way however do not use TM as a backup, this time I'd suggest an app such as SuperDuper or Carbon Copy Cloner to make a clone of the internal HD. Leave both EHDs connected and TM will backup new or changed files automatically on a hourly basis. The clone you will need to set to backup on the schedule you want. For example I have my SuperDuper EHD set to backup only changed or updated files at 2AM every day.
    The advantage of a clone is that if the computers internal HD crashes you can boot from a clone and continue working, TM will not do that but it's great for keeping an archive of all files. So if you want a version of a file from many months ago, TM will help you locate and restore it.

  • Time Machine: Can I use a smaller external hard drive with larger internal?

    Can I use a 250G external hard drive with and 500G unfilled internal drive with time machine? Or will time machine require I a 500G? I don't plan on filling the internal drive for a long time and don't want to buy a new external drive right now.

    Yes, but you are very likely to get in trouble very quickly.
    The problem is that TimeMachine saves multiple versions of any file modified, and if that file happens to be large, you can quickly fill up your TimeMachine drive such that it is throwing away older versions faster than you would desire.
    Also if your boot drive's storage usage gets even close to the 250GB external drive's capacity, TimeMachine is likely to stop working.
    If possible, I would suggest an external drive that is twice as large as your boot drive, or at least 1.5 times larger.
    I guess you could repartition your boot drive so it is smaller than your external disk so you would be less likely to use more space than could fit on the external.
    Personally, my opinion about backups is that much of my data is impossible to replace (family pictures, etc...), and spending money on backup hardware is a small price to pay for securing those memories. I also try to have it backup in more than one location in more than one way.

  • HT1338 my mac pro doesn't see my usb external hard drive what can i do?

    I'm having a problem with my mac pro not see my usb external hard drive. Can someone tell me something I can do to get the mac tosee the external drive?
    Thank you in advance.
    George

    Open Disk Utility (Applications > Utilities) and check the sidebar. If it's in it, select it and format it unless you have files

  • Can ipod be used as an external hard drive?

    Can the 80 GB ipod be used as an external hard drive if a certain section is partitioned? I bought the ipod with the most space for this purpose, for my music and a portable HD.
    What is the RPM on ipod HD?
    What is the best way of using the ipod as an external HD but at the same time making it compatible with itune for transferring music?
    Thanks.
    Dorian

    It is not recommended that you partition the iPod hard drive.
    You may render it useless as a music player if you do.
    http://docs.info.apple.com/article.html?artnum=60957

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