Search Advanced Search
General Questions (55)
Studio Series (23)
Evolution Series (40)
G-DRIVE Family (42)
G-RAID Family (52)
G-SPEED/G-SAFE Family (53)
G-MINI (16)
G-SATA (14)
Advanced Search
Search our FAQ to find resolutions to common issues.
How to format/reformat your drive for Mac (HFS+)

Please note that your G-Technology Product is already preformatted for use on a Mac.

Due to the differences between a Mac OS X and Microsoft Windows, formatting a drive for Mac only will cause the drive to not be accessible by Windows computers. If you plan on using the drive with Windows based computers, please format the drive for FAT32 which will allow both Mac OS X and Windows computers to recognize it.


NOTE:The steps below use the G-Drive slim as an example only. The steps remain the same regardless of the G-Technology product you're attempting to format.


WARNING: Any data on the drive will be erased in this process. 
 Please backup any data on the drive before proceeding.


Follow these steps to format your drive for use on the Mac:

  1. Connect and power the drive
  2. OpenMac HD, Macintosh HDor the name of your main hard drive in the finder
  3. OpenApplications > Utilities > Disk Utility

  4. Once the Disk Utility application has opened, your external hard drive should be listed on the left. It should show the drive size with a second indented line beneath it that shows the existing partition

  5. Select the Erasetab at the top of the screen

  6. SelectMac OS Extended (Journaled)for the volume format option
  7. Change the name of the drive if desired
  8. ClickEraseat the bottom of the screen. You will receive a warning message asking you to confirm the erase procedure.

When the process completes, the drive will be ready for use by selecting it on your Desktop or Finder window

Print  Email  Save  Notify Me  Delete from Favorites 
Article ID: 57 Article Created: 04-01-2011 00:21 AMLast Modified: 09-25-2013 15:49 PM

How well did this article answer your question? 100% 75% 50% 25% 0%

Most Recently Viewed Articles
External Drive Troubleshooting - Windows
Basic External Drive Troubleshooting steps for Windows. ...
Streaming Video on your G-CONNECT
Due to the well-documented complexity in video formatting, there may be unique combinations of encoding, settings and file formats which may not play via the G-CONNECT iPad application....
Windows Thunderbolt Driver Installation (Marvell)
How to install Thunderbolt Driver for Windows (Marvell Driver)...
How to Connect in USB Mode
First if you have already powered on the device, you will need to power it off by pressing the power button found on the device until the LED's begin flashing. When the LED's turn off, it is safe to disconnect the power adapter. Plug the two identical ends of the Y-Cable into your personal computer and the third into your G-CONNECT....
Is it okay to leave my external drive turned on all the time?
How do I setup my G-Technology drive for use with Time Machine?
G-Technology drives are designed to be compatible with the Apple Time Machine software....
Can I change the RAID setting for my G-RAID?
How to format/reformat your drive for Mac (HFS+)
 Follow these steps to format your drive for use on the Mac:...
External Drive Troubleshooting - Mac
Basic steps for troubleshooting your G-Technology external drive on the Mac...
How do I setup my drive for use as a Time Machine backup?
In most cases when a new drive is connected to the system Time Machine will prompt you for the setup. If this does not   happen or if you are... ...