How to recover data from TerraMaster F8-422 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 F8-422

TerraMaster F8-422 NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from F8-422.

How to recover data from NAS TerraMaster F8-422

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 F8-422 devices?

Continuous data protection (CDP) mechanisms can help minimize potential data loss on NAS TerraMaster F8-422 devices in the following ways:

  1. Real-time Data Replication: CDP mechanisms continuously replicate data in real-time to a secondary storage location. This ensures that any changes made to the data on the primary NAS device are immediately replicated, reducing the risk of data loss in case of hardware failures, disasters, or accidental deletions.
  2. Point-in-Time Recovery: CDP mechanisms capture data changes at specific points in time, allowing users to recover data from any chosen point in time. This feature is particularly useful in scenarios where data corruption or accidental changes occur and the user needs to restore the data to a previous state.
  3. Incremental Backups: CDP mechanisms typically use incremental backups, where only the changes made since the last backup are saved. This minimizes the amount of data that needs to be transferred and stored, reducing storage costs and backup duration.
  4. Instant Data Recovery: With CDP, data recovery can be almost instantaneous. Users can quickly restore files, folders, or entire systems from the replicated data, minimizing downtime and ensuring business continuity.
  5. Continuous Monitoring: CDP mechanisms constantly monitor the primary NAS device for changes and errors. If any issues are detected, such as disk failures or data corruption, alerts are generated, allowing administrators to take immediate action and mitigate the risk of data loss.
  6. Data Versioning: CDP mechanisms often provide data versioning capabilities, allowing users to access and restore previous versions of files or folders. This can be crucial in cases where data is accidentally modified, overwritten, or deleted, providing a safety net for data recovery.

By implementing continuous data protection mechanisms on NAS TerraMaster F8-422 devices, organizations can significantly reduce the potential for data loss, enhance data availability, and ensure data integrity.

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

Although NAS F8-422 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 F8-422. 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

F8-422 has 8 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 F8-422 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 F8-422, feel free to leave a comment!
  • Barry Waddilove
    Barry Waddilove 10.09.2023 11:47 #
    Are there any specific precautions that need to be taken while attempting data recovery from a NAS TerraMaster F8-422 device?
    • Hetman Software
      Hetman Software 10.09.2023 13:00 #

      While attempting data recovery from a NAS TerraMaster F8-422 device, there are several precautions that you should consider:

      1. Power off the device: Before attempting any data recovery, it is important to power off the NAS device to avoid any further damage or data loss.
      2. Avoid DIY recovery attempts: Unless you have experience and expertise in data recovery, it is generally recommended to avoid DIY recovery attempts. Mishandling the device or using improper recovery methods can lead to permanent data loss.
      3. Consult a professional data recovery service: It is advisable to seek the assistance of a professional data recovery service that specializes in NAS devices. They have the necessary tools, expertise, and cleanroom facilities to handle the recovery process safely.
      4. Do not overwrite data: Avoid writing or saving any new data to the NAS device as it can overwrite the existing data, making recovery more difficult or even impossible.
      5. Document the issue: Before sending the device for recovery, document the issue and provide any relevant information to the data recovery service. This can help them understand the problem and determine the best course of action.
      6. Backup important data: In the future, it is recommended to regularly back up your important data to avoid potential data loss situations. This way, even if a recovery is required, you will have a recent backup to rely on.

      Remember, data recovery from a NAS device can be a complex process and should be handled by professionals to maximize the 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 key features and benefits of using the NAS TerraMaster F8-422 as central storage for a home or small office network?

    The NAS TerraMaster F8-422 offers several key features and benefits that make it an ideal choice for central storage in a home or small office network:

    1. High Storage Capacity: The F8-422 comes with eight drive bays, allowing you to install up to 8 hard drives or SSDs. This provides ample storage capacity to store and manage large amounts of data, including multimedia files, documents, and backups.
    2. Powerful Performance: With an Intel quad-core processor and 4GB of RAM (expandable up to 32GB), the F8-422 delivers fast and reliable performance. It supports multiple users accessing and transferring data simultaneously, ensuring smooth operations for your network.
    3. RAID Support: The NAS supports various RAID configurations, including RAID 0, 1, 5, 6, 10, and JBOD. This allows you to choose the level of data redundancy and performance that suits your needs, ensuring data protection and efficient storage utilization.
    4. Versatile Connectivity: The F8-422 offers a range of connectivity options, including dual 2.5GbE ports and two USB 3.2 Gen 1 ports. The high-speed Ethernet ports enable faster data transfer rates, while the USB ports allow you to connect additional devices such as external drives or printers.
    5. Advanced Data Protection: The NAS supports multiple data protection features, including snapshots, which allow you to create point-in-time copies of your data for easy recovery. It also supports AES hardware encryption, ensuring secure data transmission and storage.
    6. Easy Management: The F8-422 is equipped with the TOS operating system, which provides a user-friendly interface for easy setup and management. It offers various applications for file sharing, backup, media streaming, and more, making it simple to manage your data and network.
    7. Scalability: The F8-422 supports expansion units, allowing you to increase storage capacity as your needs grow. You can easily add additional drive bays to accommodate more hard drives or SSDs, ensuring scalability and future-proofing your storage solution.
    8. Energy Efficiency: The NAS is designed to be energy-efficient, consuming minimal power during operation. This not only reduces energy costs but also contributes to a greener environment.

    Overall, the NAS TerraMaster F8-422 provides high storage capacity, powerful performance, data protection features, easy management, and scalability, making it an excellent choice for central storage in a home or small office network.

  • How does the NAS TerraMaster F8-422 ensure data security and backup capabilities when used as central storage?

    The NAS TerraMaster F8-422 ensures data security and backup capabilities when used as central storage through several features and functionalities:

    1. RAID Support: The F8-422 supports various RAID configurations, including RAID 0, 1, 5, 6, 10, and JBOD. RAID provides redundancy and data protection by distributing data across multiple hard drives, ensuring that even if one drive fails, the data remains accessible and intact.
    2. Snapshot Technology: The F8-422 supports snapshot technology, which allows users to take point-in-time copies of their data. Snapshots can be scheduled at regular intervals, providing a backup of the data in its current state. In case of accidental deletion or data corruption, users can restore the data from a previous snapshot.
    3. Data Encryption: The F8-422 supports AES 256-bit encryption, which ensures that data stored on the NAS is securely encrypted. This prevents unauthorized access to the data even if the physical drives are stolen or compromised.
    4. User Access Control: The F8-422 offers comprehensive user access control mechanisms. Administrators can create multiple user accounts with different levels of access rights, ensuring that only authorized users can access specific files and folders. This helps in preventing unauthorized modifications or deletions of critical data.
    5. Network Security: The F8-422 supports various network security protocols, including HTTPS, FTPS, and IP blocking, to protect data during transmission. These protocols encrypt data during transfer and prevent unauthorized access to the NAS from external sources.
    6. Cloud Backup: The F8-422 integrates with popular cloud storage services, such as Dropbox, Google Drive, and Amazon S3, allowing users to create off-site backups of their data. This ensures an additional layer of protection in case of physical damage or theft of the NAS.
    7. Scheduled Backup: The F8-422 offers flexible backup options, including scheduled backups to external drives or other NAS devices. Users can set up regular backups to ensure that their data is continuously protected and easily recoverable in case of a failure.

    Overall, the combination of RAID support, snapshot technology, data encryption, access control, network security, cloud backup, and scheduled backup options ensures data security and backup capabilities when using the NAS TerraMaster F8-422 as central storage.

  • Can the NAS TerraMaster F8-422 be easily integrated with existing devices and platforms, such as Windows, macOS, and various cloud services, for seamless file sharing and collaboration?

    Yes, the NAS TerraMaster F8-422 can be easily integrated with existing devices and platforms like Windows, macOS, and various cloud services. It supports common file sharing protocols such as SMB/CIFS, AFP, and NFS, making it compatible with both Windows and macOS operating systems. Additionally, it offers support for various cloud services like Dropbox, Google Drive, and OneDrive, allowing seamless integration and collaboration with these platforms.

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