How to recover data from Thecus N4800Eco 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 N4800Eco

Thecus N4800Eco NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from N4800Eco.

How to recover data from NAS Thecus N4800Eco

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 a NAS Thecus N4800Eco device's power management settings impact data availability and potential loss?

The power management settings of a NAS (Network Attached Storage) device can have an impact on data availability and potential loss in the following ways:

  1. Sleep Mode: NAS devices often have a sleep mode feature that allows them to enter a low-power state when not in use. While this can save energy, it can also cause delays when accessing data. If the NAS takes too long to wake up from sleep mode, it can result in slower response times and reduced data availability.
  2. Drive Spin Down: Some NAS devices offer the option to spin down hard drives when they are idle for a certain period. While this saves power and reduces wear on the drives, it can cause a delay when accessing data as the drives need to spin up again. If the spin-up time is significant, it can impact data availability and user experience.
  3. Scheduled Power On/Off: NAS devices may have the ability to schedule automatic power on/off cycles. While this can save power during periods of inactivity, it can also lead to data unavailability if the NAS is turned off during critical times. If the NAS is not powered on when needed, users may not be able to access their data, resulting in potential loss.
  4. Power Interruptions: In regions with unstable power supply, sudden power outages or fluctuations can occur. If the NAS device does not have proper power management features like surge protection or battery backup, it can result in data loss or corruption. Power interruptions during read/write operations can lead to incomplete data transfers or file system errors.

To mitigate the impact of power management settings on data availability and potential loss, it is important to carefully configure and balance power-saving features with the requirements of data accessibility. Regular backups should also be maintained to minimize the risk of data loss in case of power-related issues.

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

Although NAS N4800Eco 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 N4800Eco. 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

N4800Eco has 4 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 N4800Eco 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 N4800Eco, feel free to leave a comment!
  • Callum Travis
    Callum Travis 13.09.2023 18:40 #
    Can data recovery from a NAS Thecus N4800Eco device be done if the storage disks have been accidentally overwritten or reformatted?
    • Hetman Software
      Hetman Software 13.09.2023 20:00 #

      If the storage disks of a Thecus N4800Eco NAS device have been accidentally overwritten or reformatted, it may still be possible to recover data from them. However, the success of the recovery process depends on several factors, such as the extent of the overwrite or reformat, the type of file system used, and the actions taken after the data loss occurred.

      Here are a few steps you can take to attempt data recovery:

      1. Stop using the NAS immediately: To avoid further data loss, it is crucial to stop using the NAS and disconnect it from the power source as soon as you realize the data has been overwritten or reformatted.
      2. Consult a professional data recovery service: It is recommended to seek assistance from a professional data recovery service that specializes in NAS recovery. They have the expertise, tools, and resources to handle complex data recovery scenarios.
      3. Provide necessary information: When contacting the data recovery service, provide them with detailed information about the NAS model, the actions taken after the data loss, and any other relevant information that might help them assess the situation accurately.
      4. Assess the backups: Check if you have any backups of the data stored on the NAS. If you have recent backups, it may be possible to restore the data without the need for data recovery.

      Remember, data recovery from overwritten or reformatted disks is not guaranteed, and the success rate depends on various factors. It is always recommended to regularly backup your important data to avoid such situations in the future.

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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 Thecus N4800Eco provide internet access and what are its key features in this regard?

    The NAS Thecus N4800Eco provides internet access through its built-in Ethernet ports. It has four Gigabit Ethernet ports that can be connected to a router or modem to access the internet.

    Key features of the Thecus N4800Eco in terms of internet access include:

    1. Gigabit Ethernet: The NAS is equipped with four Gigabit Ethernet ports, allowing for high-speed internet connectivity.
    2. Link Aggregation: The N4800Eco supports link aggregation, which means it can combine multiple Ethernet connections to increase bandwidth and provide a more stable internet connection.
    3. Network Protocols: It supports various network protocols such as TCP/IP, DHCP, and DNS, ensuring compatibility with different network environments.
    4. Network File Sharing: The NAS supports network file sharing protocols like SMB/CIFS, NFS, and FTP, allowing users to access and share files over the internet securely.
    5. Remote Access: The N4800Eco offers remote access capabilities, enabling users to access their files and manage the NAS from anywhere with an internet connection. This can be done through the web-based user interface or dedicated mobile apps.
    6. VPN Support: It supports Virtual Private Network (VPN) protocols, allowing users to securely access the NAS and its contents over the internet.
    7. Download Manager: The NAS has a built-in download manager that supports protocols like BitTorrent, FTP, and HTTP. This enables users to download files directly to the NAS without the need for a computer.
    8. Web Server: The N4800Eco can function as a web server, hosting websites and web applications. It supports popular web server software like Apache and PHP.
    9. Surveillance Station: It has a surveillance station feature that allows users to connect IP cameras to the NAS and monitor the feeds remotely over the internet.

    Overall, the Thecus N4800Eco provides robust internet access capabilities, offering high-speed connectivity, remote access, and various network protocols to ensure efficient file sharing and management over the internet.

  • Can the NAS Thecus N4800Eco be used as a standalone internet access device or does it require additional networking equipment?

    The Thecus N4800Eco is a Network Attached Storage (NAS) device, designed primarily for storage and data management purposes. While it does have networking capabilities and can be connected to a network, it is not designed to function as a standalone internet access device.

    To connect the Thecus N4800Eco to the internet and access it remotely, you would typically need additional networking equipment such as a router or switch. The NAS would connect to the local network, and the router would provide internet access to the entire network, including the NAS.

    So, in short, the Thecus N4800Eco requires additional networking equipment to provide internet access.

  • What are the security measures implemented in the NAS Thecus N4800Eco to ensure safe and secure internet access for connected devices?

    The Thecus N4800Eco NAS (Network Attached Storage) device implements several security measures to ensure safe and secure internet access for connected devices. Some of these measures include:

    1. User Access Control: The NAS provides user authentication and access control mechanisms. It allows administrators to create user accounts with different levels of access privileges, ensuring that only authorized users can access specific files and folders.
    2. Data Encryption: Thecus N4800Eco supports various encryption protocols such as AES 256-bit, ensuring that data stored on the NAS is securely encrypted and protected from unauthorized access.
    3. Firewall: The NAS has a built-in firewall that filters network traffic, blocking unauthorized access attempts and protecting connected devices from external threats.
    4. Antivirus/Anti-malware: Thecus NAS devices come with integrated antivirus and anti-malware software. These security features help detect and prevent the spread of viruses and malware within the NAS and connected devices.
    5. SSL/TLS Support: The NAS supports secure communication protocols like SSL (Secure Sockets Layer) and TLS (Transport Layer Security) for secure data transmission between the NAS and connected devices.
    6. Network Isolation: Thecus N4800Eco allows administrators to set up VLANs (Virtual Local Area Networks) to isolate network traffic and enhance security. This prevents unauthorized access to sensitive data and limits the impact of potential security breaches.
    7. IP Access Control: The NAS supports IP access control lists, allowing administrators to define a list of trusted IP addresses or IP ranges that are allowed to access the NAS. This prevents unauthorized access from unknown or suspicious IP addresses.
    8. Two-Factor Authentication: Thecus NAS devices support two-factor authentication, adding an extra layer of security to user logins. This requires users to provide a second form of authentication, such as a verification code sent to their mobile device, in addition to their username and password.
    9. Regular Firmware Updates: Thecus regularly releases firmware updates that include security patches and bug fixes. Keeping the NAS firmware up to date ensures that the latest security enhancements are applied, protecting against known vulnerabilities.

    These security measures collectively help ensure safe and secure internet access for connected devices using the Thecus N4800Eco NAS. However, it is essential to regularly review and update these security settings and practices to maintain a secure environment.

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