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External hard drive format on Mac

  • Oct 02, 2019
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You have an external hard drive you want to format on a Mac or MacBook? This is not difficult. Some of the things you need to consider but. We will show you how it works.

Hard drive to the Mac format, but really

And formatting, you can partition your external hard drive on the Mac with the disk utility. You will find under "applications - utilities". The Format of the external hard drive on Mac is helpful or even necessary. But caution: Partitioning and Formatting will destroy your hard disk data. You don't have to be extremely careful not to destroy accidentally important files.
  1. Most of the external panels pre-formatted coming FAT32. This allows you to run on most computers, there are features, however, are lost.
  2. Multiple partitions, you can create only new device to the plate. This is important if you want to separate, e.g., Backups, and other data.
  3. You want to use the hard drive as a TimeMachine drive, you should use the Mac's own file system.
Disk Utility

Different file systems for different purposes

There are different file systems are available under Mac OS X available - all with specific advantages and disadvantages:
  1. In disk utility, a new disk is formatted by default to HFS+ (Mac OS Extended). Windows systems can read the HFS+ only with additional software or describe.
  2. FAT32 is universally applicable, is most of the systems supported, and is thus well suited, if you have the hard drive on different operating system would like to use. Unfortunately, it does not support files larger than 4 GB. For ISOs of DVDs or recordings from your HD camcorder, so it is unsuitable.
  3. NTFS has many of the problems of FAT32, but Mac OS without additional software are read only. By means of NTFS-3G you can, but write access is retrofitted.

External hard drive on the Mac, delete and re-set up

To the hard disk, proceed as follows:
  1. Connect your external hard drive to the Mac. Then start the disk utility program.
  2. In the left column you will see the connected drives. The first entry should be your internal hard drive. This may not reformat. One of the entries shows the external plate. Depending on the type of connection through the corresponding icon visible (in the Screenshot, yellow with USB sign on it).
  3. If you are sure to have the correct drive selected, click "Delete". In the image, the entire disk is selected, but you can also select individual partitions to Delete. Then, select the file system.
  4. After formatting, the Volume is available.
External hard drive format

External hard drive under Mac OS X partition

If the partition scheme of your hard drive does not suit you, you can also change the partitioning. This is required only if you want to need several partitions in certain sizes, or a existing Partition to get rid of.
  1. Are you looking for as above, the external panel described in disk utility and click on "Partitioning".
  2. Select a Volume scheme to determine the number of partitions.
  3. Click on one of the partitions created, to Name, Format and size.
  4. When you are finished, click "Apply".
External hard drive partitioning

Tip: The best external hard drives for the Mac

So that you can work with your formatted hard drive well, it should have sufficient space and be extra fast.
  • Great models with 2.5-inch you can find in our always - current list of best. These hard drives are perfect for Transport, since they fit in almost any pocket.
  • More memory for larger sizes you get with a 3.5-inch hard drive. The fastest models in this class can be found in our detailed Test Ranking.
Transcend-plate: compatible With Mac.
Should you individual help with formatting your external hard drive, then contact the experts in the CHIP Forum.