How to recover data from Thecus N5810 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 N5810

Thecus N5810 NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from N5810.

How to recover data from NAS Thecus N5810

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.

How can regular software updates and patches enhance the security and stability of NAS Thecus N5810 devices?

Regular software updates and patches can enhance the security and stability of NAS Thecus N5810 devices in the following ways:

  1. Security patches: Software updates often include security patches that fix vulnerabilities and address potential security risks. By regularly updating the software on the NAS device, these security patches can be applied, reducing the chances of unauthorized access, data breaches, or malware infections.
  2. Bug fixes: Updates and patches also address software bugs and glitches that may affect the stability and performance of the NAS device. By fixing these issues, the device becomes more reliable and less prone to crashes or unexpected behavior.
  3. Compatibility with new technologies: Updates ensure that the NAS device remains compatible with the latest technologies, protocols, and file systems. This allows for seamless integration with other devices, networks, and software applications, enhancing overall functionality and usability.
  4. Improved features and functionality: Software updates often introduce new features, enhancements, and performance optimizations. These updates can offer additional security options, improved encryption, better user management, or more efficient resource utilization, thereby enhancing the overall security and stability of the NAS device.
  5. Stay ahead of emerging threats: Regular updates help the NAS device to stay up to date with the latest security practices and defenses against emerging threats. As new vulnerabilities and attack techniques are discovered, software updates can provide necessary countermeasures to protect the device and its data.
  6. Vendor support: By keeping the NAS device updated, users can ensure they receive continued support from the vendor. This includes access to technical assistance, troubleshooting, and firmware updates. Staying within the supported software version is crucial for receiving timely assistance and ensuring the long-term stability and security of the device.

Overall, regular software updates and patches for NAS Thecus N5810 devices are essential to maintain the security, stability, and optimal performance of the device, protecting valuable data and ensuring a reliable network storage solution.

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

Although NAS N5810 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 N5810. 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

N5810 has 5 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 N5810 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 N5810, feel free to leave a comment!
  • Felix Abbitt
    Felix Abbitt 13.09.2023 11:42 #
    Can data recovery from a NAS Thecus N5810 device be done if the device is showing signs of excessive noise or vibration?
    • Hetman Software
      Hetman Software 13.09.2023 12:00 #

      If a NAS device like Thecus N5810 is showing signs of excessive noise or vibration, it may indicate a hardware issue. In such cases, it is recommended to immediately stop using the device to prevent any further damage.

      Data recovery from a NAS device with hardware issues can be challenging and may require professional assistance. It is important to contact a data recovery specialist or the manufacturer's support team for guidance. They will have the expertise and tools necessary to assess the situation and determine if data recovery is possible.

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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 different file access security measures available on the NAS Thecus N5810?

    The Thecus N5810 NAS provides various file access security measures to ensure data protection and access control. Some of the key security features available on this device are:

    1. User and Group Management: The NAS allows you to create multiple user accounts and groups, each with their own unique permissions and access rights. This helps in controlling who can access specific files and folders.
    2. Access Control List (ACL): ACL allows you to set granular permissions for individual users or groups, defining what actions (read, write, execute, etc.) they can perform on specific files or directories.
    3. Shared Folder Permissions: You can assign different permission levels (read-only, read-write, no access) to shared folders, limiting access to authorized users or groups.
    4. HTTPS and SSL/TLS Encryption: The NAS supports HTTPS protocol, ensuring secure communication between clients and the device. SSL/TLS encryption provides data confidentiality and integrity during transmission.
    5. IP Access Control: You can restrict access to the NAS based on IP addresses, allowing only specified IP ranges or denying access from specific IPs.
    6. Active Directory/LDAP Integration: The Thecus N5810 NAS can be integrated with existing Active Directory or LDAP servers, enabling centralized user authentication and access control.
    7. Two-Factor Authentication (2FA): The device supports 2FA, adding an extra layer of security by requiring users to provide a second form of authentication (e.g., a unique code) in addition to their password.
    8. Antivirus Integration: The NAS can be integrated with antivirus software to scan files for malware and prevent infected files from being accessed or spread.
    9. Data Encryption: Thecus NAS offers AES 256-bit encryption for data stored on the device, ensuring that even if the physical drives are stolen, the data remains secure.
    10. Audit Trail and Event Notifications: The NAS can log user activities and provide event notifications, allowing administrators to monitor and track file access, changes, and other system events.

    It is important to note that the availability of these security measures may vary depending on the firmware version and specific configuration of the Thecus N5810 NAS.

  • How can users ensure secure file access on the NAS Thecus N5810?

    To ensure secure file access on the NAS Thecus N5810, users can follow these steps:

    1. Change the default administrator password: The default password should be changed immediately to prevent unauthorized access. Choose a strong password that includes a combination of letters, numbers, and special characters.
    2. Enable Firewall: The NAS should have a built-in firewall that can be enabled to protect against unauthorized access. Configure the firewall settings to allow only necessary services and block all other incoming connections.
    3. Update the firmware: Regularly check for firmware updates on the Thecus website and apply them to ensure that the NAS has the latest security patches and bug fixes.
    4. Create user accounts: Instead of using the default administrator account, create individual user accounts for each person who needs access to the NAS. Assign appropriate access rights and permissions to each user to control their level of access.
    5. Enable HTTPS: Access the NAS through a secure HTTPS connection instead of HTTP to encrypt the data transmission. Enable the HTTPS option in the NAS settings and use a valid SSL certificate for secure access.
    6. Enable two-factor authentication (2FA): Two-factor authentication adds an extra layer of security by requiring users to provide a second verification method, such as a code sent to their mobile device, in addition to their password. Enable 2FA for user accounts to enhance security.
    7. Use strong passwords: Encourage users to set strong passwords for their accounts. Passwords should be unique, complex, and not easily guessable. Consider using a password manager to securely store and manage passwords.
    8. Enable network encryption: The NAS should support network encryption protocols like SSL or TLS. Enable these protocols to encrypt the network traffic between the NAS and connected devices.
    9. Disable unnecessary services: Disable any unnecessary services or protocols that are not being used. This reduces the potential attack surface and minimizes the risk of vulnerabilities.
    10. Regularly backup data: Implement a regular backup strategy to ensure data is protected in case of any security incidents or hardware failures. Store backups in a separate location or on a different device to prevent data loss.
    11. Monitor and review access logs: Regularly review the access logs and monitor for any suspicious activity. Enable logging features on the NAS to track who accessed the files and when.
    12. Educate users: Provide training and education to users on secure file access practices. Teach them about the importance of strong passwords, avoiding suspicious links or downloads, and being cautious with sharing files or credentials.

    By following these steps, users can enhance the security of file access on the Thecus N5810 NAS and protect their data from unauthorized access or breaches.

  • Are there any specific features or settings on the NAS Thecus N5810 that enhance file access security?

    Yes, the NAS Thecus N5810 offers several features and settings that enhance file access security. Some of these include:

    1. User and group management: The NAS allows you to create multiple user accounts and assign them to specific groups. You can then set access permissions for each user or group, controlling who can read, write, or execute files and folders.
    2. Access Control List (ACL): The ACL feature allows for more granular control over file and folder permissions. It enables you to define specific access rights for individual users or groups, including read, write, execute, delete, and other permissions.
    3. Encryption: The NAS supports data encryption to protect the confidentiality of your files. It can encrypt data at rest using AES 256-bit encryption, ensuring that even if the physical drives are stolen, the data remains secure.
    4. HTTPS and SSL/TLS support: The NAS supports secure communication protocols like HTTPS and SSL/TLS, enabling encrypted connections between clients and the NAS. This ensures that data transmitted over the network is encrypted and protected from eavesdropping.
    5. IP access control: You can restrict access to the NAS based on IP addresses or IP ranges. This allows you to specify which IP addresses are allowed or denied access to the NAS, adding an extra layer of security.
    6. Two-factor authentication (2FA): The NAS supports 2FA, which adds an additional layer of security to the login process. With 2FA enabled, users need to provide a second form of authentication, such as a temporary code generated by a mobile app, in addition to their password.
    7. Antivirus integration: Thecus NAS devices can integrate with antivirus software to scan files for malware and viruses. This helps to prevent the spread of infected files and ensures the integrity of the stored data.

    These features and settings help to enhance file access security on the Thecus N5810 NAS, providing various options to control and protect access to your files.

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