Recovering from RAID Array Format on NAS QNAP Turbo Station TS-670 / TS-670 Pro: Comprehensive Data Recovery Guide

Has your NAS QNAP Turbo Station TS-670 / TS-670 Pro suddenly lost its network drive and you’re unsure what to do next? Did the RAID array collapse, making your files inaccessible? Is the device throwing errors during startup? Perhaps you accidentally rebuilt the RAID array or several hard drives failed at the same time?

Recovering from RAID Array Format on NAS QNAP Turbo Station TS-670 / TS-670 Pro: Comprehensive Data Recovery Guide
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QNAP Turbo Station TS-670 / TS-670 Pro NAS Data Recovery in 2025

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from an Turbo Station TS-670 / TS-670 Pro. We’ll walk through the most common causes of failure and demonstrate proven methods to restore files from a lost or degraded RAID array.

Recovering from RAID Array Format on NAS QNAP Turbo Station TS-670 / TS-670 Pro: Comprehensive Data Recovery Guide

RAID Recovery™ 2.8
Recover data from damaged RAID arrays inaccessible from a computer.
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Why Regular Data Recovery Tools Can’t Restore Files from RAID

Conventional hard drives store user data by writing it sequentially across the disk surface, which means an entire file is typically located on a single drive. In contrast, when data is written to a RAID array, each file is split into multiple fragments. These fragments are then distributed and written in sequence across all the drives in the array. Depending on the configuration, fragment sizes can range from 2 KB to 2 MB, so every file is physically stored across several disks at once.

This approach significantly increases read and write performance — after all, writing two halves of a 1 GB file to two drives simultaneously is much faster than writing the full 1 GB to a single disk. However, this same mechanism makes file recovery far more complex.

Different RAID levels use different methods to distribute and protect data. On top of that, manufacturers like QNAP often add their own proprietary structures and variations. As a result, data can be written to disks in many different formats, and each requires a specific approach during recovery.

Are there any known issues or limitations when using NAS QNAP Turbo Station TS-670 / TS-670 Pro devices with virtualization platforms such as VMware or Hyper-V?

Yes, there are some known issues and limitations when using QNAP Turbo Station TS-670 / TS-670 Pro devices with virtualization platforms such as VMware or Hyper-V.

  1. Limited RAM: The TS-670 / TS-670 Pro devices come with limited RAM capacity, which may restrict the number of virtual machines (VMs) that can be run simultaneously. This can affect the overall performance and scalability of the virtualization environment.
  2. CPU Performance: The CPU performance of these devices may not be sufficient for running resource-intensive VMs or multiple VMs simultaneously. This can result in slower performance and reduced responsiveness of the virtualization environment.
  3. Storage Performance: The storage performance of the TS-670 / TS-670 Pro devices may not be as high as dedicated storage solutions designed for virtualization. This can impact the speed and efficiency of VM operations, especially when dealing with large amounts of data.
  4. Limited Hypervisor Support: The TS-670 / TS-670 Pro devices may have limited support for virtualization platforms. For example, they may not be officially certified or fully compatible with the latest versions of VMware or Hyper-V. This can result in compatibility issues or limited functionality when using these platforms.
  5. Lack of Advanced Features: The TS-670 / TS-670 Pro devices may lack advanced virtualization features that are commonly found in dedicated virtualization solutions. This can include features like live migration, high availability, and advanced networking capabilities.
  6. Limited Scalability: The TS-670 / TS-670 Pro devices may have limited scalability options, both in terms of storage capacity and the number of VMs that can be supported. This can restrict the growth and expansion of the virtualization environment over time.

It is recommended to carefully review the specifications and capabilities of the TS-670 / TS-670 Pro devices and consider these limitations before deploying them in a virtualization environment.

How to Remove Hard Disks from Your NAS and Connect Them to a PC

Although the NAS Turbo Station TS-670 / TS-670 Pro can be accessed over the network, you still need to remove its hard disks and connect them directly to a Windows PC. Only then can the recovery software properly scan and analyze the drives. Follow these steps:

  1. Power off the NAS and disconnect it from the power source.

    WARNING! Before removing any drives, carefully read the device manual. Improper actions may damage both the NAS enclosure and the hard disks in the RAID array.

  2. Remove the hard disks one by one, gently sliding each drive out of its slot. Remember that hard disks are highly sensitive: any impact or drop can cause serious physical damage.

  3. Label each hard disk according to its position inside the NAS. The order of the drives is crucial for correct RAID reconstruction.

  4. Connect the drives to your computer. In this video, we explain which ports you can use to connect hard disks and what to do if your PC does not have enough free connectors.

    Go to view
    How to Order Remote Data Recovery

    How to Order Remote Data Recovery

Step-by-Step Data Recovery with Hetman RAID Recovery

Hetman Raid Recovery

This program restores data from damaged RAID arrays and is fully compatible with QNAP Turbo Station TS-670 / TS-670 Pro. Each hard disk in the array contains technical metadata describing how files were written. When launched, Hetman RAID Recovery analyzes this metadata, automatically reconstructs the damaged array, and provides access to its contents. After that, you can browse the recovered disk and save your files. The program can also restore files that were accidentally deleted from the network drive.

Go to view
How to recover data from a QNAP

How to recover data from a QNAP

Turbo Station TS-670 / TS-670 Pro has 6 HDD slots, and it supports the following array types:

  • RAID 5;
  • RAID 6;
  • RAID 10;
  • RAID 0;
  • RAID 1;
  • JBOD;

NAS supports:

  • ZFS;
  • EXT4;
  • EXT3;
  • FAT32 (External Disk Only);
  • NTFS (External Disk Only);
  • HFS+ (External Disk Read Only);

How to Safely Recover Data from Disk Images

This utility allows you to create a complete copy of a disk and work with the disk image instead of the physical drive. This approach helps protect your data from:

  • Overwriting during the recovery process;
  • Additional data loss caused by bad sectors;
  • User errors.

To create a disk image, follow these steps:

  1. Ensure you have enough free space to store the image. Its size will typically match the size of the original disk.

  2. In the main window, select the target disk and choose Tools - Save Disk. You can also select multiple disks if needed.

  3. When the Image Creation Wizard opens, select whether you want to save the entire disk or only a specific region. Adjust the settings and click Next.

    Hetman RAID Recovery: Image Creation Wizard

  4. Choose the directory where the image will be saved. You may select any available disk connected to your PC or upload the image via FTP.

    Hetman RAID Recovery: Choose a disk or save the image via FTP

Where Are the User’s Files Actually Stored?

The QNAP Turbo Station TS-670 / TS-670 Pro network-attached storage keeps QTS (QuTS hero) 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.

RAID Recovery Software: Detailed Comparison

Product Operating system RAID controller support Supported file systems Virtual RAID controller support Data recovery from damaged RAID File preview
Hetman RAID Recovery Windows, Linux, MacOS Yes, over 100 controllers FAT, exFAT, NTFS, ReFS, APFS, HFS+, Ext4, Ext3, Ext2, ReiserFS, Btrfs, VMFS, Hikvision, XFS, UFS, ZFS Yes Yes Yes
DiskInternals RAID Recovery Windows Yes, over 10 controllers FAT, NTFS, Ext2/3/4, HFS+ No Yes Yes
R-Studio Windows, Mac, Linux Yes, over 20 controllers FAT, NTFS, Ext2/3/4, HFS+ Yes Yes Yes
UFS Explorer RAID Recovery Windows, Mac, Linux Yes, over 100 controllers FAT, NTFS, Ext2/3/4, HFS+ Yes Yes Yes
EaseUS Data Recovery Windows Yes, over 20 controllers FAT, NTFS, Ext2/3/4, HFS+ No Yes Yes
ReclaiMe Free RAID Recovery Windows Yes, over 100 controllers FAT, NTFS, Ext2/3/4, HFS+ Yes Yes Yes

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Comments (1)

  • 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 Turbo Station TS-670 / TS-670 Pro, feel free to leave a comment!
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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 xaker.ru, 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.

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Questions and answers

  • What is SSH and how does it work?

    SSH stands for Secure Shell. It is a network protocol that allows secure remote communication between two computers. SSH provides a secure channel over an unsecured network, such as the internet, by encrypting the data transmitted between the client and the server.

    Here's how SSH works:

    1. Client-Server Connection: The client initiates a connection to the server using SSH. The client can be a computer, smartphone, or any device with SSH client software installed. The server is a remote computer that has SSH server software running.
    2. Encryption: Once the connection is established, SSH negotiates encryption algorithms with the server. This ensures that all data transmitted between the client and server is encrypted, making it difficult for anyone to intercept or decipher the information.
    3. Authentication: SSH uses various authentication methods to verify the identity of the client connecting to the server. This can include password-based authentication, public key authentication, or other authentication mechanisms.
    4. Secure Communication: Once the client is authenticated, SSH creates a secure channel between the client and server. This channel is used for all subsequent communication, including commands, file transfers, and other data exchange.
    5. Command Execution: The client can now send commands to the server securely. The server executes these commands and sends the output back to the client over the encrypted channel.
    6. File Transfer: SSH also supports secure file transfer between the client and server. This allows files to be securely uploaded or downloaded from the server.

    Overall, SSH ensures secure remote access and communication by encrypting data, authenticating users, and establishing a secure channel for communication between the client and server. It is widely used in various scenarios, such as remote server administration, secure file transfers, and tunneling network connections.

  • Why is SSH important for secure remote access to network devices?

    SSH (Secure Shell) is important for secure remote access to network devices for several reasons:

    1. Encryption: SSH provides strong encryption for data transmission, ensuring that information sent between the client and the server is protected from eavesdropping or interception. This prevents unauthorized access to sensitive data and ensures the confidentiality of the communication.
    2. Authentication: SSH uses various authentication methods, such as passwords, public key cryptography, or two-factor authentication, to verify the identity of the user or client device. This ensures that only authorized individuals can access the network devices remotely, reducing the risk of unauthorized access and potential security breaches.
    3. Integrity: SSH also ensures the integrity of the data being transmitted. It uses cryptographic mechanisms to detect any tampering or modification of data during transit. If any changes are detected, the connection is terminated, preventing the transmission of compromised or altered data.
    4. Portability: SSH is widely supported across different operating systems and platforms, making it a versatile and accessible solution for remote access. It allows network administrators to securely manage network devices from various locations and devices, including desktops, laptops, or mobile devices.
    5. Secure File Transfer: In addition to remote access, SSH also provides secure file transfer capabilities through tools like SCP (Secure Copy) and SFTP (Secure File Transfer Protocol). This allows administrators to securely transfer files between their local machines and network devices without the need for additional, potentially less secure, protocols.

    Overall, SSH plays a crucial role in ensuring the security and privacy of remote access to network devices, protecting sensitive data, and preventing unauthorized access or tampering.

  • How does the NAS QNAP Turbo Station TS-670 / TS-670 Pro utilize SSH for secure remote management and data transfer?

    The NAS QNAP Turbo Station TS-670 / TS-670 Pro utilizes SSH (Secure Shell) for secure remote management and data transfer by implementing SSH server functionality.

    SSH is a cryptographic network protocol that allows secure remote login and data transfer over an unsecured network. It provides a secure channel for communication between the client and the server, ensuring privacy and data integrity.

    To utilize SSH on the QNAP Turbo Station TS-670 / TS-670 Pro, you need to enable the SSH server feature in the NAS settings. Once enabled, you can remotely access the NAS using an SSH client, such as PuTTY (for Windows) or Terminal (for macOS and Linux).

    With SSH, you can securely manage and configure the NAS through a command-line interface (CLI). You can execute various commands to perform tasks like configuring network settings, managing users and permissions, and accessing files and directories.

    Additionally, SSH allows for secure file transfers between the NAS and remote systems using tools like SCP (Secure Copy) or SFTP (Secure File Transfer Protocol). These protocols enable you to securely transfer files and folders between the NAS and your local computer or other remote servers.

    Overall, by utilizing SSH, the QNAP Turbo Station TS-670 / TS-670 Pro ensures secure remote management and data transfer, protecting sensitive information and maintaining the integrity of the network communication.
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