How to recover data from TerraMaster U12-722-2224 NAS

Is your network drive gone, and you are wondering what to do? Has a RAID system crashed, and your files are no longer accessible? Does your device display an error while booting? Have you accidentally rebuilt your RAID system? Are several hard disks out of order?

How to recover data from NAS TerraMaster U12-722-2224

TerraMaster U12-722-2224 NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from U12-722-2224.

How to recover data from NAS TerraMaster U12-722-2224

Recover data from damaged RAID arrays inaccessible from a computer.

Why can’t ordinary software tools restore files from RAID?

Conventional hard disks keep user’s data by writing it to their surface in a consecutive way, and this is how an entire file is stored on a single hard disk. However, when data is written to a RAID system, a file is divided into several parts. Then these parts are written consecutively to all hard disks within such array. The size of such parts may range from 2 KB to 2 MB, so each file is stored on several hard disks at the same time.

Such approach helps to speed up read and write operations, and it is evident that saving two parts of a file having the size of 1 GB to two hard disks simultaneously is much faster than saving the same 1 GB of data to one hard disk. However, this peculiarity makes file recovery more complicated.

Various RAID levels store information in different ways. Additionally, manufacturers like TerraMaster also introduce some modifications to this process, and that is why data can be written to hard disk in a wide variety of ways.

Are there any compatibility issues or limitations when connecting NAS TerraMaster U12-722-2224 devices to different operating systems or platforms?

The TerraMaster U12-722-2224 NAS device is compatible with various operating systems and platforms, but there might be some limitations or compatibility issues depending on the specific requirements and features of each operating system or platform. Here are some potential considerations:

  1. Windows: The TerraMaster NAS devices generally work seamlessly with Windows operating systems, including Windows 7, 8, and 10. However, certain advanced features like Windows ACL (Access Control List) permissions might require additional configuration or software installation.
  2. macOS: TerraMaster NAS devices are compatible with macOS, allowing users to access and manage files using Finder or other file management applications. However, some advanced features like Time Machine backups might require specific setup or configuration.
  3. Linux: TerraMaster NAS devices can be accessed from Linux systems, allowing file sharing and management. However, compatibility with specific Linux distributions and file systems might vary, and advanced features like NFS (Network File System) or Samba sharing might require additional configuration.
  4. Mobile platforms: TerraMaster provides dedicated mobile apps for iOS and Android devices, allowing users to access files, stream media, and manage the NAS remotely. However, the availability and functionality of certain features might differ between the mobile apps and the desktop client applications.
  5. Third-party software and protocols: TerraMaster NAS devices support various third-party software and protocols, such as Plex Media Server, Docker, FTP, and more. However, compatibility with specific versions or configurations of these software or protocols might vary.

It's always recommended to check the official documentation, user forums, or contact TerraMaster support for the most up-to-date information regarding compatibility and limitations when connecting the NAS device to different operating systems or platforms.

How to take hard disks out of the NAS and connect them to a PC?

Although NAS U12-722-2224 can be accessed over the network, you still need to take the hard disks out of the storage device and connect them to a Windows computer. Only in this case will the software be able to scan them properly. Here is what you should do:

  1. Turn off the storage and disconnect it from the power supply.

    WARNING! Before you start taking hard disks out of your NAS device, read the manual carefully. Incorrect actions may damage your network-attached storage and/or the hard disks within the RAID system.

  2. Take the hard disks out of the NAS one by one, carefully removing them from their slots. Remember that the disks are extremely vulnerable: hitting or dropping them may result in serious physical damage.

  3. Make sure to mark each hard disk in accordance with how they were installed inside the NAS.

  4. Remove the hard disks and connect them to the computer. In this video, we have explored what ports are used to connect hard disks, and what to do if there are not enough ports or connectors.

    Go to view
    How to Order Remote Data Recovery

    How to Order Remote Data Recovery

Restoring data with Hetman RAID Recovery

Hetman Raid Recovery

This program recovers data from damaged RAID arrays and is fully compatible with TerraMaster U12-722-2224. The hard disks that make up the RAID contain technical information about the algorithm used to save files. When launched, Hetman RAID Recovery reads this information and puts the damaged array together. Then you can open the disk and save your files. Also, you can recover the files accidentally deleted from the network drive.

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How to recover data from a TerraMaster

How to recover data from a TerraMaster

U12-722-2224 has 12 HDD slots, and it supports the following array types:

  • RAID 0;
  • RAID 1;
  • RAID 5;
  • RAID 6;
  • RAID 50;
  • RAID 60;
  • JBOD;

NAS supports:

  • Ext2;
  • Ext3;
  • Ext4;
  • Btrfs;

Safe recovery from disk images

This utility lets you save an entire copy of the disk to file and then work with this image instead of the actual disk. Such feature helps to protect data on the disk from:

  • Overwriting during the recovery process;
  • Loss resulting from bad sectors;
  • User mistakes.

To create an image, do the following:

  1. Make sure that you have enough free space to save the image. The image file size usually equals the disk size.

  2. Select the disk in the main window, and choose from the menu ToolsSave Disk. You can select multiple disks to be saved.

  3. When the image creation wizard starts, you can choose to save the entire disk or select only a part of it. Specify the parameters and click Next.

    Hetman Raid Recovery: Image Creation Wizard
  4. At this stage, you need to choose a directory where to save the image. Choose any disk connected to this PC, or save the image by FTP.

    Hetman Raid Recovery: hoose any disk connected to this PC, or save the image by FTP

Where are user’s files stored?

The TerraMaster U12-722-2224 network-attached storage keeps OS Linux operating system files on a separate RAID 1 (mirrored) array. Usually, all NAS systems create several volumes on every hard disk, and the first of them takes up to 2 Gb of space. This is where operating system files are stored. Other volumes are united into a RAID array where user’s data is written.

Comparison of software for RAID recovery

Product Operating system License type RAID controller support Supported file systems Virtual RAID controller support Data recovery from damaged RAID File preview
Hetman RAID Recovery Windows Paid Yes, over 100 controllers FAT, NTFS, Ext2/3/4, HFS+ Yes Yes Yes
DiskInternals RAID Recovery Windows Paid Yes, over 100 controllers FAT, NTFS, Ext2/3/4, HFS+ No Yes Yes
R-Studio Windows, Mac, Linux Paid Yes, over 200 controllers FAT, NTFS, Ext2/3/4, HFS+ Yes Yes Yes
UFS Explorer RAID Recovery Windows, Mac, Linux Paid Yes, over 1,000 controllers FAT, NTFS, Ext2/3/4, HFS+ Yes Yes Yes
EaseUS Data Recovery Windows Paid Yes, over 20 controllers FAT, NTFS, Ext2/3/4, HFS+ No Yes Yes
ReclaiMe Free RAID Recovery Windows Free Yes, over 100 controllers FAT, NTFS, Ext2/3/4, HFS+ Yes Yes Yes


We will be happy to answer your questions!

Comments (3)

  • Hetman Software: Data Recovery
    Hetman Software: Data Recovery 9.08.2022 12:31 #
    If you want to ask a question about data recovery, from NAS U12-722-2224, feel free to leave a comment!
  • Jasper Dalton
    Jasper Dalton 10.09.2023 04:41 #
    Can data recovery from a NAS TerraMaster U12-722-2224 device be performed if there are issues with the operating system or firmware?
    • Hetman Software
      Hetman Software 10.09.2023 04:59 #

      Yes, data recovery from a NAS TerraMaster U12-722-2224 device can be performed even if there are issues with the operating system or firmware. In such cases, the data recovery process typically involves removing the hard drives from the NAS device and connecting them to a computer or another NAS device using appropriate interfaces (such as SATA or USB). Once connected, specialized data recovery software or services can be used to recover the data from the hard drives. It is important to note that data recovery from a NAS device can be a complex process, and it is recommended to seek professional assistance from data recovery experts to ensure the best chances of successful recovery.

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Vladimir Artiukh

Author: Vladimir Artiukh, Technical Writer

Vladimir Artiukh is a technical writer for Hetman Software, as well as the voice and face of their English-speaking YouTube channel, Hetman Software: Data Recovery for Windows. He handles tutorials, how-tos, and detailed reviews on how the company’s tools work with all kinds of data storage devices.

Oleg Afonin

Editor: Oleg Afonin, Technical Writer

Oleg Afonin is an expert in mobile forensics, data recovery and computer systems. He often attends large data security conferences, and writes several blogs for such resources as, Elcomsoft and Habr. In addition to his online activities, Oleg’s articles are also published in professional magazines. Also, Oleg Afonin is the co-author of a well-known book, Mobile Forensics - Advanced Investigative Strategies.


Questions and answers

  • What are the steps involved in copying files from a NAS TerraMaster U12-722-2224 to cloud services such as Google Drive or Dropbox?

    To copy files from a NAS TerraMaster U12-722-2224 to cloud services like Google Drive or Dropbox, you can follow these steps:

    1. Connect the NAS TerraMaster U12-722-2224 to your network and ensure it is properly set up and accessible.
    2. Access the NAS web interface by entering its IP address in a web browser.
    3. Navigate to the file management section or file explorer within the NAS web interface.
    4. Locate the files or folders you want to copy to the cloud service.
    5. Select the files or folders you want to copy. You may need to use checkboxes or similar selection methods provided by the NAS interface.
    6. Look for an option like "Copy" or "Export" within the NAS interface. This option may be available in a right-click context menu or as a button on the interface.
    7. Choose the destination as Google Drive or Dropbox. The NAS interface may provide direct integration with these services or offer generic cloud storage options.
    8. If direct integration is available, select the appropriate cloud service and authorize the NAS to access your account. Follow the provided instructions to complete the authorization process.
    9. If direct integration is not available, select the option to download the selected files as a ZIP or compressed file.
    10. Once the files are downloaded, sign in to your Google Drive or Dropbox account in a web browser.
    11. Upload the downloaded files to the desired location in Google Drive or Dropbox. You can usually drag and drop files or use an upload button within the cloud service interface.
    12. Wait for the files to finish uploading, and verify that they are successfully transferred to the cloud service.

    Note: The exact steps may vary depending on the NAS TerraMaster U12-722-2224 model and firmware version, as well as the specific cloud service being used. It's recommended to refer to the NAS user manual or online documentation for detailed instructions.

  • Are there any specific settings or configurations that need to be considered when copying files from NAS TerraMaster U12-722-2224 to cloud services to ensure data security and efficient transfer?

    When copying files from a NAS (Network Attached Storage) device like the TerraMaster U12-722-2224 to cloud services, there are a few settings and configurations that you can consider to ensure data security and efficient transfer. Here are some key points to keep in mind:

    1. Encryption: Ensure that your files are encrypted before transferring them to the cloud. Most cloud services offer encryption options, both in transit (during transfer) and at rest (when stored on the cloud). Enable encryption to protect your data from unauthorized access.
    2. Bandwidth and Speed: Check your internet connection speed and bandwidth to ensure efficient transfer. NAS devices usually have Gigabit Ethernet ports, so make sure your network infrastructure can handle the maximum speed. If needed, consider upgrading your internet plan or optimizing your network setup.
    3. File Sync/Backup Software: Use reliable file sync or backup software that supports NAS devices and cloud services. These tools can provide features like scheduled backups, incremental backups (only transferring changed files), and bandwidth throttling to optimize transfer speed.
    4. Cloud Service Integration: Choose a cloud service that integrates well with your NAS device. Some NAS devices have built-in support for specific cloud services, making it easier to transfer files seamlessly. Check if your TerraMaster NAS supports popular cloud services like Amazon S3, Google Drive, Dropbox, etc.
    5. Data Deduplication and Compression: Some file sync/backup software and NAS devices offer data deduplication and compression features. These technologies can reduce the size of your files, resulting in faster transfers and reduced storage costs on the cloud.
    6. Two-Factor Authentication (2FA): Enable two-factor authentication for your cloud service accounts to add an extra layer of security. This ensures that even if your login credentials are compromised, unauthorized access can be prevented.
    7. Access Control: Review and configure access control settings on your NAS device to restrict who can access the files and folders being transferred. Limiting access to only authorized users helps maintain data security.
    8. Regular Auditing and Monitoring: Once the files are transferred to the cloud, regularly monitor and audit your cloud service account for any suspicious activities or unauthorized access attempts. Enable notifications for any changes or unusual activities in your cloud account.

    Remember to review the documentation and user manuals provided by TerraMaster and the cloud service provider for specific instructions on how to configure settings and transfer files securely from your NAS device to the cloud.

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