How to Recover Data when New 4 TB Mac Hard Drive Fails?

Hard drives have witnessed a steady journey of growth throughout the years and are a significant part of the Mac world. Due to the ever-changing technology of storage drives, your Mac continues to get smarter and powerful with faster processing power and huge storage spaces.

Hard drives have become a standard for mass storage both internally and externally. But what will you do if your newly bought 4 TB Mac external hard drive fails and you cannot access the files stored in it?

Lisa faced a similar issue wherein her valuable files and documents stored in the 4 TB Mac external hard drive turned inaccessible. The directory structure of the drive was corrupt which resulted in the inaccessibility of the files.

Put yourself in her shoes and think how would you feel when you’re unable to access files on the external hard drive? Kind of sad actually thinking about it, isn’t it? The mere feeling of not being able to access your family videos, pictures, crucial presentations, e-books, and electronic image or documents leaves you confused and annoyed.

Generally, disk structure corruption occurs due to improper update in the directory or when the OS accesses a corrupt partition. Also, kernel panics, improper ejection of the external USB drive, machine crash, and interruption in read/write operations are some other causes that corrupt the directory structure.

Replace the Failed 4TB Mac External Hard Drive

Raise the request for replacement as your in-warranty hard drive might be eligible for replacement, if not, the hard drive manufacturers will repair the corrupt directory structure without restoring all the files. In addition, if you approach a data recovery services provider – which entails Drive tempering and alteration – it voids the warranty policy and can be a big-ticket and time-consuming process.

The Step Forward

Your probable course of action should be:

  1. Recover data from the 4TB drive using a Mac hard drive recovery software
  2. Save the recovered data in your Mac or another storage media
  3. Contact the manufacturer and replace your failed drive

First things first, recover all your important data from the failed 4 TB external Mac hard drive using Stellar Data Recovery Professional for Mac software. Intuitive interface and robust features make the recovery simple yet extremely effective. You don’t have to spend time in getting familiar with its basic functionality because the software is very easy to understand. Just run it and recover your data from the 4 TB external Mac hard drive effortlessly.

The external drive recovery steps are as follows:

Run Stellar Data Recovery Professional for Mac and toggle-on the data file types that you wish to recover. Click Next

Stellar Mac data recovery

Select the 4 TB external hard drive and click Scan

Select the Location

The software scans the drive for recoverable files

Once the scan is complete, all the recoverable files are listed hierarchically

Preview the files that you want to save

Select the files, click Recover, specify the destination and click Save

If the partition/volume of the 4 TB drive is lost or inaccessible, you can recover data using the software. The recovery steps are slightly different:

  1. In the Storage Location window, select Can’t Find Volume and click Scan
  2. Now select the 4TB drive and click Search to search the lost volume
  3. The software searches and list the detected volume
  4. Select the found volume and click Scan and proceed with the process


You can repair the failed 4TB Mac external hard drive through Disk Utility and File-system Check command but sometimes these utilities fail with the only solution to reformat the drive. In addition, you have to log in as Admin to run file-system check command and have to be cautious with it. However, it is important to backup your data before running either Disk Utility or command line terminal.

If the directory structure of your 4TB drive is severely corrupt or damaged to the extent where it cannot find cataloged files, proceed with a Mac data recovery software to retrieve all files and consequently resolve the issue.

  1. Steven Parker May 22, 2018
    • Arpana May 23, 2018
  2. Michael Garcia April 16, 2018
    • Arpana April 18, 2018

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