How to recover data from TerraMaster U16-722-2224 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 U16-722-2224

TerraMaster U16-722-2224 NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from U16-722-2224.

How to recover data from NAS TerraMaster U16-722-2224

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.

How can continuous data protection mechanisms help in minimizing potential data loss on NAS TerraMaster U16-722-2224 devices?

Continuous data protection (CDP) mechanisms can help minimize potential data loss on NAS TerraMaster U16-722-2224 devices in the following ways:

  1. Real-time Backup: CDP enables real-time backup of data as it is being modified or created. This ensures that even the most recent changes are protected, minimizing the risk of data loss.
  2. Incremental Backups: CDP performs incremental backups, which means it only backs up the changes made since the last backup. This reduces the backup time and minimizes the amount of data that could potentially be lost.
  3. Point-in-Time Recovery: CDP allows for point-in-time recovery, meaning that you can restore your data to a specific point in time. This is particularly useful in case of accidental deletions or data corruption, as you can roll back to a previous state before the loss occurred.
  4. Continuous Monitoring: CDP mechanisms continuously monitor the data on the NAS device, detecting any changes or modifications. This proactive approach ensures that any potential data loss event is quickly identified and addressed.
  5. Instant Recovery: With CDP, you can quickly recover data without the need for lengthy restore processes. This minimizes downtime and ensures that critical data is accessible immediately after a loss event.
  6. Redundancy and Replication: CDP often includes features like data redundancy and replication, allowing for additional copies of data to be stored in different locations or devices. This provides an extra layer of protection against data loss due to hardware failures or disasters.

Overall, CDP mechanisms offer a comprehensive and proactive approach to data protection, significantly reducing the risk of data loss on NAS TerraMaster U16-722-2224 devices.

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

Although NAS U16-722-2224 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 U16-722-2224. 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.

Go to view
How to recover data from a TerraMaster

How to recover data from a TerraMaster

U16-722-2224 has 16 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 U16-722-2224 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 U16-722-2224, feel free to leave a comment!
  • Francis Punter
    Francis Punter 10.09.2023 04:46 #
    Is it possible to recover data from a NAS TerraMaster U16-722-2224 device that has been affected by a hardware RAID controller failure?
    • Hetman Software
      Hetman Software 10.09.2023 06:01 #

      Yes, it is possible to recover data from a NAS TerraMaster U16-722-2224 device that has been affected by a hardware RAID controller failure. However, the process can be complex and may require professional data recovery services.

      Here are a few steps you can take to attempt data recovery:

      1. Contact TerraMaster Support: Reach out to TerraMaster's customer support for assistance. They may be able to provide guidance or recommend a solution specific to your device.
      2. Replace the RAID Controller: If the RAID controller is the only component that has failed, you may be able to replace it with an identical or compatible one. This can be a challenging task, as finding an exact replacement might be difficult. Consult with TerraMaster support or a professional technician for assistance.
      3. Professional Data Recovery Services: If replacing the RAID controller is not feasible or does not resolve the issue, you can seek professional data recovery services. These companies specialize in recovering data from failed storage devices, including NAS devices. They have the expertise and tools to handle complex situations like hardware RAID failures.

      It is important to note that professional data recovery services can be expensive, and there is no guarantee of success. Therefore, it is crucial to have regular backups of important data to avoid such situations in the first place.

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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 compatibility requirements for an additional hard drive to be used with the NAS TerraMaster U16-722-2224?

    The NAS TerraMaster U16-722-2224 is a 16-bay rackmount NAS device designed for professional use. To add an additional hard drive to this NAS, the following compatibility requirements should be considered:

    1. Hard Drive Size: The NAS supports 3.5-inch SATA hard drives. Ensure that the additional hard drive you choose is compatible with this form factor.
    2. SATA Interface: The NAS supports SATA III (6Gb/s) interface. Make sure the additional hard drive has this interface for optimal performance.
    3. Capacity: The NAS supports various hard drive capacities, including 3TB, 4TB, 6TB, 8TB, 10TB, 12TB, 14TB, 16TB, 18TB, and 20TB. Choose a compatible capacity based on your storage needs.
    4. RPM: The NAS is compatible with both 7200RPM and 5400RPM hard drives. Higher RPM drives offer better performance, but they may generate more heat and consume more power.
    5. NAS Compatibility: Ensure that the additional hard drive is compatible with network-attached storage (NAS) devices. Some hard drives are specifically designed for NAS use, offering features like enhanced reliability, vibration resistance, and optimized firmware.
    6. RAID Support: The NAS supports various RAID configurations, including RAID 0, 1, 5, 6, 10, 50, 60, and JBOD. Ensure that the additional hard drive is compatible with the RAID configuration you intend to use.
    7. Power Consumption: Consider the power consumption of the additional hard drive, especially if you plan to add multiple drives. Ensure that the NAS's power supply is capable of handling the power requirements.
    8. Compatibility with NAS Software: The NAS may have specific software requirements or compatibility limitations. Check the manufacturer's documentation or website to ensure that the additional hard drive is supported by the NAS's software.

    It is always recommended to consult the NAS manufacturer's documentation or contact their support for specific compatibility information and any recommended hard drive models.

  • How do you install and configure an additional hard drive in the NAS TerraMaster U16-722-2224?

    To install and configure an additional hard drive in the TerraMaster U16-722-2224 NAS, follow these steps:

    1. Power off the NAS and disconnect all cables.
    2. Remove the screws from the rear panel and slide off the cover.
    3. Locate the drive bay where you want to install the additional hard drive.
    4. Remove the screws from the drive bay and slide out the tray.
    5. Attach the additional hard drive to the tray using the provided screws.
    6. Slide the tray back into the drive bay and secure it with the screws.
    7. Repeat the above steps for any additional hard drives you want to install.
    8. Connect the SATA data and power cables from the NAS to the new hard drive(s).
    9. Replace the cover and secure it with the screws.
    10. Reconnect all cables to the NAS.
    11. Power on the NAS and wait for it to boot up.
    12. Access the NAS administration interface using a web browser and enter the IP address of the NAS.
    13. Log in to the administration interface with your username and password.
    14. Go to the storage management section of the interface.
    15. Locate the newly installed hard drive(s) and click on the "Create" or "Add" button to configure them.
    16. Follow the on-screen instructions to set up the new hard drive(s) as a storage pool or add them to an existing pool.
    17. Configure the RAID level, file system, and other settings as desired.
    18. Save the changes and wait for the NAS to initialize the new hard drive(s).
    19. Once the configuration is complete, the additional hard drive(s) will be ready for use in the NAS.

    Note: It is recommended to refer to the user manual or documentation provided by TerraMaster for specific instructions related to your NAS model.

  • What are the recommended storage capacity and drive type options for expanding storage in the NAS TerraMaster U16-722-2224?

    The NAS TerraMaster U16-722-2224 supports both 3.5-inch and 2.5-inch SATA hard drives and solid-state drives (SSDs). It has 16 drive bays, allowing for significant storage expansion.

    In terms of storage capacity, the recommended options would depend on your specific requirements and budget. However, the NAS supports up to 16 drives, so you have a wide range of options.

    For hard drives, you can choose capacities ranging from 1TB to 18TB or even higher. It is recommended to use NAS-specific hard drives, such as those designed for 24/7 operation, to ensure better performance and reliability.

    If you prefer SSDs, you can choose capacities starting from 250GB up to several terabytes. SSDs offer faster data access speeds compared to traditional hard drives, which can be beneficial for certain applications that require high-speed data transfer.

    Ultimately, the recommended storage capacity and drive type options for expanding storage in the NAS TerraMaster U16-722-2224 will depend on your specific needs, budget, and the intended use of the NAS.

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