How to recover data from Thecus N7700PRO 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 Thecus N7700PRO

Thecus N7700PRO NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from N7700PRO.

How to recover data from NAS Thecus N7700PRO

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 Thecus 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 overheating or improper ventilation cause data loss on NAS Thecus N7700PRO devices?

Yes, overheating or improper ventilation can potentially cause data loss on NAS devices like Thecus N7700PRO. NAS devices generate heat while running, and if they are not properly ventilated or if the cooling system fails, the internal temperature can rise to dangerous levels. This excessive heat can damage the internal components, including the hard drives where the data is stored. When the hard drives are subjected to high temperatures, it can lead to data corruption or even complete failure, resulting in data loss. It is important to ensure that NAS devices are kept in a well-ventilated area and that the cooling system is functioning properly to prevent overheating and potential data loss.

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

Although NAS N7700PRO 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 Thecus N7700PRO. 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 Thecus

How to recover data from a Thecus

N7700PRO has 7 HDD slots, and it supports the following array types:

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

NAS supports:

  • EXT3;
  • EXT4;
  • XFS;

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 Thecus N7700PRO 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 N7700PRO, feel free to leave a comment!
  • Phineas Barleycorn
    Phineas Barleycorn 14.09.2023 11:42 #
    Can data recovery from a NAS Thecus N7700PRO device be performed if there are issues with the storage controller?
    • Hetman Software
      Hetman Software 14.09.2023 12:00 #

      If there are issues with the storage controller of a Thecus N7700PRO NAS device, data recovery can still be possible. However, it may require professional assistance from a data recovery service provider.

      These service providers have specialized tools and expertise to recover data from various storage devices, including NAS devices. They can bypass or repair the storage controller to access the data stored on the drives.

      It is important to note that attempting DIY solutions or inexperienced data recovery attempts can potentially worsen the situation and lead to permanent data loss. Therefore, it is recommended to consult a professional data recovery service for the best chance of recovering your data.

Post comment
Leave a reply
Your email address will not be published. Required fields are marked *

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 of the NAS Thecus N7700PRO that make it suitable for internet access?

    The key features of the NAS Thecus N7700PRO that make it suitable for internet access are:

    1. High-performance hardware: The N7700PRO is equipped with a powerful Intel Core 2 Duo processor and 4GB of DDR2 memory, ensuring smooth and fast data transfers over the internet.
    2. Gigabit Ethernet ports: It has two Gigabit Ethernet ports that support link aggregation, allowing for increased network bandwidth and faster internet connectivity.
    3. Multiple RAID configurations: The NAS supports various RAID configurations, including RAID 0, 1, 5, 6, 10, and JBOD. This ensures data protection and redundancy for internet-accessible files and data.
    4. Built-in FTP server: The N7700PRO has a built-in FTP server, enabling users to easily access and transfer files over the internet using FTP clients.
    5. Web-based file management: It provides a web-based file management interface that allows users to access and manage their files remotely through a web browser. This feature is especially useful for internet access as it eliminates the need for additional software installations.
    6. Remote access and mobile apps: The NAS supports remote access, allowing users to access their files and data from anywhere with an internet connection. Thecus also provides mobile apps for iOS and Android devices, enabling convenient access to files on the go.
    7. Download manager: The N7700PRO includes a download manager that supports BitTorrent, FTP, and HTTP downloads. This feature is useful for downloading files directly to the NAS over the internet.
    8. Security features: The NAS has various security features, including HTTPS encryption, IP filtering, and user access controls. These features ensure secure internet access and protect data from unauthorized access.

    Overall, the combination of high-performance hardware, versatile RAID configurations, remote access capabilities, and security features make the NAS Thecus N7700PRO suitable for internet access and file sharing.

  • How does the NAS Thecus N7700PRO ensure secure and reliable internet access for users?

    The NAS Thecus N7700PRO ensures secure and reliable internet access for users through various features and technologies:

    1. RAID Support: The N7700PRO supports various RAID configurations, including RAID 0, 1, 5, 6, 10, 50, and JBOD. RAID provides data redundancy and improves data integrity, ensuring that users' data is protected against drive failures.
    2. Data Encryption: The N7700PRO supports AES 256-bit volume-based encryption, which encrypts the data stored on the NAS. This ensures that even if the drives are stolen or accessed by unauthorized individuals, the data remains encrypted and secure.
    3. Access Control: The NAS provides robust access control mechanisms, allowing administrators to create user accounts with different levels of access rights. This ensures that only authorized users can access specific files or folders, enhancing security and preventing unauthorized access.
    4. HTTPS and SSL/TLS Support: The N7700PRO supports HTTPS (HTTP over SSL/TLS) for secure web-based management. This ensures that the data transmitted between the NAS and the user's web browser is encrypted, protecting it from eavesdropping or tampering.
    5. VPN Support: The NAS supports Virtual Private Network (VPN) protocols such as PPTP and OpenVPN. VPNs enable secure remote access to the NAS over the internet, allowing users to access their files and data securely from anywhere.
    6. Antivirus Integration: Thecus N7700PRO integrates with various antivirus software, providing real-time scanning and protection against malware and viruses. This helps to ensure that the NAS and the data stored on it remain secure and free from malicious threats.
    7. Firmware Updates: Thecus regularly releases firmware updates for their NAS devices, which include security patches and bug fixes. Keeping the firmware up to date ensures that the NAS remains secure and reliable, as any vulnerabilities or issues are addressed promptly.

    Overall, the combination of data encryption, access control, secure protocols, antivirus integration, and regular firmware updates helps the NAS Thecus N7700PRO ensure secure and reliable internet access for users.

  • Can the NAS Thecus N7700PRO be easily integrated into existing network infrastructure for seamless internet access?

    Yes, the NAS Thecus N7700PRO can be easily integrated into existing network infrastructure for seamless internet access. It supports various network protocols such as TCP/IP, DHCP, and DNS, which allow it to seamlessly connect to your existing network. Additionally, it has multiple Ethernet ports for easy network connectivity and can be configured with the appropriate network settings to ensure smooth internet access.

Hello! This is AI-based Hetman Software virtual assistant, and it will answer any of your questions right away.
Start Chat