How to recover data from Thecus N5810PRO 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 N5810PRO

Thecus N5810PRO NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from N5810PRO.

How to recover data from NAS Thecus N5810PRO

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.

Are there any known compatibility issues or limitations when connecting NAS Thecus N5810PRO devices to specific switches or routers?

There are no specific compatibility issues or limitations reported when connecting Thecus N5810PRO NAS devices to switches or routers. The NAS device uses standard networking protocols and interfaces such as Gigabit Ethernet, which are widely supported by most switches and routers available in the market. However, it is always recommended to check the compatibility and specifications of the switches or routers to ensure they support the required networking standards and have sufficient bandwidth and features for your specific requirements.

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

Although NAS N5810PRO 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 N5810PRO. 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.

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How to recover data from a Thecus

How to recover data from a Thecus

N5810PRO 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 N5810PRO 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 N5810PRO, feel free to leave a comment!
  • Wallace Westcott
    Wallace Westcott 13.09.2023 09:41 #
    Can data recovery from a NAS Thecus N5810PRO device be performed if there are issues with the disk array or storage pool?
    • Hetman Software
      Hetman Software 13.09.2023 11:00 #

      Yes, data recovery from a NAS Thecus N5810PRO device can be performed even if there are issues with the disk array or storage pool. However, it is important to note that data recovery from a faulty disk array or storage pool can be a complex and delicate process. It is recommended to seek the assistance of a professional data recovery service with experience in NAS devices to maximize the chances of successful data recovery.

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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 key features and capabilities of Thecus N5810PRO for data backup on a NAS?

    The Thecus N5810PRO is a network-attached storage (NAS) device that offers various features and capabilities for data backup. Some key features and capabilities include:

    1. RAID Support: The N5810PRO supports various RAID levels (RAID 0, 1, 5, 6, 10, and JBOD), allowing users to configure their storage for data redundancy and improved performance.
    2. Hot-Swappable Drives: The NAS has hot-swappable drive bays, allowing users to replace or upgrade drives without powering down the device or interrupting data access.
    3. Multiple Backup Options: The N5810PRO offers multiple backup options, including local backups to external USB drives, remote backups to other NAS devices, and cloud backups to popular cloud storage providers.
    4. Snapshot Technology: It features snapshot technology, enabling users to take point-in-time snapshots of their data. Snapshots allow for quick recovery in case of accidental file deletion or data corruption.
    5. Data Deduplication and Compression: The NAS supports data deduplication and compression, which helps reduce storage space requirements and optimize backup performance.
    6. Data Replication: The N5810PRO supports data replication, allowing users to create redundant copies of their data on another NAS device or remote server for disaster recovery purposes.
    7. Scheduled Backup: Users can schedule automatic backups at specific intervals or times to ensure regular and consistent data protection.
    8. Backup Scheduling and Versioning: The NAS allows users to set up backup schedules and versioning, ensuring that multiple versions of files are retained, making it possible to restore to a specific point in time.
    9. User-friendly Backup Software: The Thecus NAS comes with user-friendly backup software that simplifies the configuration and management of backups.
    10. Compatibility: The N5810PRO is compatible with various backup software and protocols, including Time Machine for Mac users, making it suitable for heterogeneous environments.
    11. High Capacity and Performance: With five drive bays and a powerful processor, the N5810PRO offers high storage capacity and performance for efficient data backup and retrieval.
    12. Data Security: The NAS provides various security features like AES 256-bit encryption, antivirus software integration, and access controls to protect data during backup and storage.

    These features and capabilities make the Thecus N5810PRO a robust solution for data backup on a NAS, suitable for both personal and small business use.

  • How does Thecus N5810PRO ensure data integrity and reliability during the backup process?

    The Thecus N5810PRO ensures data integrity and reliability during the backup process through several features and technologies:

    1. RAID Support: The N5810PRO supports various RAID levels (RAID 0, 1, 5, 6, 10, and JBOD) which provide data redundancy and protection against drive failures. RAID ensures that even if one or more drives fail, the data remains accessible and can be recovered.
    2. Snapshot Technology: Thecus N5810PRO utilizes snapshot technology that allows users to take point-in-time snapshots of the entire system or specific folders. Snapshots capture the state of the data at a specific moment, ensuring that even if data is accidentally modified or deleted, a previous version can be restored.
    3. Data Scrubbing: The N5810PRO performs regular data scrubbing to detect and correct any errors or inconsistencies in the stored data. This process ensures that the data remains accurate and reliable over time.
    4. Data Deduplication and Compression: The N5810PRO employs data deduplication and compression techniques to reduce the storage space required for backups. Deduplication identifies and eliminates duplicate data, while compression reduces the size of the data, resulting in more efficient storage and faster backup and restore operations.
    5. Multiple Backup Options: The N5810PRO offers various backup options, including local backups to external USB drives or other network storage devices, remote backups to offsite locations or cloud services, and scheduled backups. These options provide flexibility and redundancy in data backup, minimizing the risk of data loss.
    6. Data Encryption: Thecus N5810PRO supports data encryption to protect sensitive information during the backup process. Encryption ensures that data remains secure and inaccessible to unauthorized users, providing an additional layer of data integrity and reliability.

    Overall, the combination of RAID support, snapshot technology, data scrubbing, deduplication and compression, multiple backup options, and data encryption ensures that the Thecus N5810PRO maintains data integrity and reliability during the backup process.

  • Can you provide guidance on setting up and configuring data backup on Thecus N5810PRO, including recommended backup strategies and software compatibility?

    Setting up and configuring data backup on Thecus N5810PRO involves a few steps. Here's a guide to help you with the process:

    1. Determine your backup strategy: Before setting up backups, it's important to decide on a backup strategy that suits your needs. Common strategies include full backups, incremental backups, and differential backups. Consider factors such as data size, frequency of changes, and recovery time objectives.
    2. Choose backup software: The Thecus N5810PRO NAS supports various backup software options. Some popular choices include Acronis True Image, Symantec Backup Exec, and Veeam Backup & Replication. Research and select a backup software that is compatible with your NAS and aligns with your backup strategy.
    3. Install and configure the backup software: Follow the instructions provided by the backup software vendor to install the software on your NAS. Once installed, configure the software according to your backup strategy. Set up backup schedules, define source and destination folders, and specify any additional settings required.
    4. Set up backup destinations: Determine where you want to store your backups. You can use internal hard drives, external USB drives, network shares, or cloud storage. Ensure that the destination has sufficient capacity to accommodate your backups.
    5. Configure backup destinations on the NAS: Access the Thecus N5810PRO's web interface by entering its IP address in a web browser. Navigate to the backup settings section and configure the backup destinations. Specify the destination folders and authentication details if necessary.
    6. Test and monitor backups: After the initial setup, perform a test backup and restore to ensure everything is functioning correctly. Regularly monitor backup logs and verify the integrity of your backups to ensure data recoverability.
    7. Consider offsite backups: To enhance data protection, consider implementing offsite backups. This can be achieved by replicating backups to another NAS located in a different physical location or by utilizing cloud backup services.

    Remember to regularly review and update your backup strategy as your data and requirements evolve.

    Note: Thecus provides its own backup software called Thecus Backup Utility, which you can consider using as well.

    It's always recommended to consult the documentation and support resources provided by Thecus and the backup software vendor for detailed instructions and compatibility information specific to your NAS model and software version.

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