How to recover data from TerraMaster F2-221 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 F2-221

TerraMaster F2-221 NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from F2-221.

How to recover data from NAS TerraMaster F2-221

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.

Can the use of specific backup and recovery strategies help reduce potential data loss risks on NAS TerraMaster F2-221 devices?

Yes, the use of specific backup and recovery strategies can help reduce potential data loss risks on NAS TerraMaster F2-221 devices. Here are some strategies that can be employed:

  1. Regular backups: Implement a regular backup schedule to create copies of important data stored on the NAS device. This can be done using built-in backup software or third-party backup solutions.
  2. Offsite backups: Store backup copies of data in a different physical location or on cloud storage services. This ensures that even if the NAS device is damaged or stolen, the data remains safe and accessible.
  3. RAID configuration: Configure the NAS device with a RAID (Redundant Array of Independent Disks) setup to provide data redundancy. RAID levels like RAID 1 or RAID 5 can help protect against disk failures by mirroring or striping data across multiple drives.
  4. Snapshot feature: Utilize the snapshot feature if available on the NAS device. Snapshots capture the state of the data at a specific point in time, allowing for easy recovery in case of accidental deletion or modification of files.
  5. Disaster recovery plan: Develop a comprehensive disaster recovery plan that outlines the steps to be taken in case of data loss or system failure. This plan should include procedures for restoring data from backups and getting the NAS device back up and running.
  6. Regular maintenance: Perform regular maintenance tasks such as firmware updates, disk health checks, and monitoring system logs for any signs of potential issues. This helps identify and address problems before they lead to data loss.

By implementing these backup and recovery strategies, the risk of data loss on NAS TerraMaster F2-221 devices can be significantly reduced.

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

Although NAS F2-221 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 F2-221. 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

F2-221 has 2 HDD slots, and it supports the following array types:

  • RAID 0;
  • RAID 1;
  • 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 F2-221 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 F2-221, feel free to leave a comment!
  • Chet Walpole
    Chet Walpole 10.09.2023 17:40 #
    Can deleted files be recovered from a NAS TerraMaster F2-221 device?
    • Hetman Software
      Hetman Software 10.09.2023 18:00 #

      It is possible to recover deleted files from a NAS TerraMaster F2-221 device, but it depends on various factors. When a file is deleted from a NAS device, it is typically moved to a recycle bin or trash folder within the NAS system. If the file is still present in the recycle bin, it can be easily restored.

      However, if the file has been permanently deleted or the recycle bin has been emptied, the chances of recovery decrease. In such cases, you may need to use specialized data recovery software or seek professional assistance to attempt file recovery.

      It's important to note that the success of file recovery also depends on factors like the file system used on the NAS device, the amount of time that has passed since the file was deleted, and whether the storage space has been overwritten with new data.

      To maximize the chances of recovering deleted files, it is recommended to immediately stop using the NAS device and avoid writing new data to it.

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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

  • How does the NAS TerraMaster F2-221 enhance the functionality of a smart home system?

    The NAS TerraMaster F2-221 enhances the functionality of a smart home system in several ways:

    1. Centralized Storage: The F2-221 acts as a centralized storage solution for all the data generated by various smart devices in a home. It provides a secure and reliable place to store videos, photos, documents, and other files, ensuring easy access and backup.
    2. Media Streaming: With its powerful hardware and software capabilities, the F2-221 can stream media content to multiple devices simultaneously. This is particularly useful for streaming movies, music, or videos to smart TVs, smartphones, tablets, or other connected devices within the smart home network.
    3. Home Surveillance: The F2-221 can be used as a surveillance storage solution, allowing users to connect IP cameras and record and store footage directly on the NAS. This enables continuous monitoring of the home and provides a secure backup of surveillance data.
    4. Data Backup and Sync: The F2-221 supports various backup and synchronization methods, allowing users to automatically back up important files from their smart devices or cloud services. This ensures data redundancy and protection against data loss.
    5. Remote Access and Control: The F2-221 offers remote access capabilities, enabling users to access their files, media, or surveillance footage from anywhere using a mobile app or web browser. This allows users to manage and control their smart home system even when they are away from home.
    6. Expandability: The F2-221 is designed to be expandable, allowing users to add additional storage drives as their smart home system grows. This ensures that the NAS can accommodate the increasing storage needs of a growing number of smart devices.

    Overall, the NAS TerraMaster F2-221 enhances the functionality of a smart home system by providing centralized storage, media streaming, home surveillance capabilities, data backup and sync, remote access, and expandability. It acts as a reliable and versatile storage solution that complements and enhances the overall smart home experience.

  • What are the key features and specifications of the NAS TerraMaster F2-221 that make it suitable for a smart home setup?

    The NAS TerraMaster F2-221 offers several key features and specifications that make it suitable for a smart home setup:

    1. Storage Capacity: The F2-221 comes with two drive bays, allowing you to install up to two hard drives or SSDs. This provides ample storage capacity for storing and managing large amounts of data generated by smart home devices.
    2. High Performance: Powered by an Intel Celeron 2.0GHz dual-core processor and 2GB DDR3 RAM (expandable up to 4GB), the F2-221 delivers fast and reliable performance. This enables seamless streaming, file sharing, and data backup for your smart home devices.
    3. RAID Support: The F2-221 supports multiple RAID configurations, including RAID 0, RAID 1, JBOD, and Single Disk. This allows you to choose the level of data protection and performance that suits your smart home needs.
    4. Multiple Connectivity Options: The NAS offers various connectivity options, including two Gigabit Ethernet ports, two USB 3.0 ports, and one HDMI port. These ports enable easy integration with your smart home network, as well as direct connection to compatible devices such as TVs or monitors.
    5. App Ecosystem: TerraMaster provides a range of apps that can be installed on the F2-221, expanding its functionality for smart home setups. These apps include media servers, surveillance solutions, cloud storage, and more.
    6. Remote Access and Sharing: With TerraMaster's TOS operating system, you can remotely access and share files stored on the F2-221. This is particularly useful for smart home automation, as it allows you to control and share data with your smart devices from anywhere.
    7. Energy Efficiency: The F2-221 is designed to be energy-efficient, consuming minimal power while operating. This is essential for smart home setups that require 24/7 availability without significantly impacting energy bills.

    Overall, the NAS TerraMaster F2-221 offers a combination of storage capacity, performance, connectivity, and software features that make it suitable for managing and integrating smart home devices and data.

  • Can the NAS TerraMaster F2-221 seamlessly integrate with popular smart home platforms and devices, such as Amazon Alexa or Google Home?

    Yes, the NAS TerraMaster F2-221 can seamlessly integrate with popular smart home platforms and devices like Amazon Alexa or Google Home. It supports integration with these platforms through their respective skills or apps. This allows you to control and access your NAS and its content using voice commands or through the smart home platforms' interfaces.

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