How to recover data from QNAP TBS-453DX 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 QNAP TBS-453DX

QNAP TBS-453DX NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from TBS-453DX.

How to recover data from NAS QNAP TBS-453DX

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 QNAP 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 hardware upgrades or modifications lead to data loss if not properly executed on NAS QNAP TBS-453DX devices?

Yes, hardware upgrades or modifications can potentially lead to data loss if not properly executed on NAS QNAP TBS-453DX devices. This is because any mishandling or improper installation of hardware components can cause damage to the device or its storage drives, resulting in data corruption or loss.

It is crucial to follow the manufacturer's instructions and guidelines while performing any hardware upgrades or modifications on the NAS device. This may involve ensuring compatibility of the hardware components, taking necessary precautions to avoid static electricity discharge, and properly connecting and securing the components.

Additionally, it is highly recommended to have a backup of all important data before attempting any hardware modifications. This way, even if data loss occurs, you can restore the data from the backup.

If you are unsure about performing hardware upgrades or modifications yourself, it is advisable to seek professional assistance to minimize the risks of data loss.

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

Although NAS TBS-453DX 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 QNAP TBS-453DX. 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 QNAP

How to recover data from a QNAP

TBS-453DX has 4 HDD slots, and it supports the following array types:

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

NAS supports:

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

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 QNAP TBS-453DX 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.

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 TBS-453DX, feel free to leave a comment!
  • Kane Tinsley
    Kane Tinsley 18.09.2023 06:46 #
    Are there any specific encryption methods used in NAS QNAP TBS-453DX devices that may affect data recovery?
    • Hetman Software
      Hetman Software 18.09.2023 07:00 #

      The QNAP TBS-453DX is a NAS (Network Attached Storage) device that supports various encryption methods to ensure data security. These encryption methods include:

      1. AES (Advanced Encryption Standard): AES is a widely used symmetric encryption algorithm that provides strong encryption for data stored on the NAS. It uses a 256-bit key size, which makes it highly secure.
      2. SSL/TLS: Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols are used to encrypt data during network communication. They ensure that data transmitted between the NAS and other devices is protected from eavesdropping and tampering.
      3. Encrypted File System: QNAP NAS devices also support encrypted file systems, such as QNAP's own QTS encryption or the Linux-based LUKS encryption. These file-level encryption methods encrypt individual files or folders, adding an extra layer of security to the data stored on the NAS.

      While these encryption methods enhance data security, they may affect data recovery in certain situations. If you forget the encryption password or lose the encryption key, it can be extremely challenging to recover the encrypted data. QNAP provides recovery methods, such as using a recovery key or contacting their support, but these methods may not always guarantee successful data recovery.

      It is important to keep your encryption password and keys secure and backed up in multiple locations to avoid potential data loss or recovery difficulties.

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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 security features and protocols available on the QNAP TBS-453DX to ensure file access security?

    The QNAP TBS-453DX offers several security features and protocols to ensure file access security. Some of the key features include:

    1. Access Control List (ACL): ACL allows administrators to define granular access permissions for individual users or user groups. This ensures that only authorized users can access specific files or folders.
    2. File-level encryption: The TBS-453DX supports AES 256-bit encryption for files and folders. This ensures that even if unauthorized users gain access to the storage device, they cannot read or modify the encrypted files without the encryption key.
    3. Secure Sockets Layer (SSL) and Transport Layer Security (TLS): These protocols provide secure communication channels between the TBS-453DX and connected devices, preventing eavesdropping or data interception.
    4. Two-factor authentication (2FA): The TBS-453DX supports 2FA, which adds an extra layer of security by requiring users to provide two forms of authentication, such as a password and a unique code generated by a mobile app.
    5. IP blocking and access control: Administrators can configure IP blocking rules to prevent unauthorized access attempts from specific IP addresses or IP ranges. Access control lists can also be used to restrict access based on IP addresses.
    6. Antivirus and malware protection: The TBS-453DX includes built-in antivirus and malware scanning capabilities to detect and prevent the spread of malicious files. It can also be configured to automatically scan files upon upload or download.
    7. Network protocols and encryption: The TBS-453DX supports various network protocols such as SMB, AFP, FTP, and WebDAV, all of which can be encrypted using SSL/TLS to ensure secure data transfer over the network.
    8. Data backup and snapshots: The TBS-453DX offers various data backup options, including scheduled backups, remote replication, and snapshot technology. Snapshots allow users to quickly restore previous versions of files in case of accidental deletion or modification.

    These security features and protocols help ensure that file access on the QNAP TBS-453DX is secure and protected from unauthorized access or data breaches.

  • How does the QNAP TBS-453DX handle user authentication and access control for files stored on the NAS?

    The QNAP TBS-453DX offers several methods for user authentication and access control for files stored on the NAS. Here are some of the key features:

    1. User Accounts: The NAS supports creating multiple user accounts with different access privileges. Each user can have their own login credentials and access permissions.
    2. User Groups: Users can be organized into groups, allowing for easier management of access control. Permissions can be set at the group level, making it efficient to grant or deny access to multiple users at once.
    3. Access Control Lists (ACL): ACLs provide granular control over file and folder permissions. You can assign specific permissions (read, write, execute) to individual users or groups for each file or folder.
    4. Windows Active Directory (AD) Integration: The NAS can integrate with an existing Windows AD domain, allowing users to log in using their AD credentials. This simplifies user management and ensures consistency with the organization's existing authentication infrastructure.
    5. LDAP Server: The NAS can function as an LDAP server, enabling centralized user authentication and access control across multiple devices and services within the network.
    6. 2-step Verification: To enhance security, the NAS supports two-step verification using Google Authenticator or other compatible apps. This adds an extra layer of protection to user accounts.
    7. File-level Encryption: The NAS supports AES-256 encryption for individual files or folders. This ensures that sensitive data remains secure even if unauthorized access to the NAS occurs.
    8. IP Access Control: You can restrict access to the NAS based on IP addresses or IP ranges. This allows you to specify which devices or networks are allowed to connect to the NAS.

    These features provide a comprehensive set of tools to manage user authentication and access control for files stored on the QNAP TBS-453DX NAS, ensuring data security and privacy.

  • Can the QNAP TBS-453DX integrate with existing security systems or protocols to enhance file access security?

    Yes, the QNAP TBS-453DX can integrate with existing security systems or protocols to enhance file access security. It supports various security features and protocols such as LDAP, Active Directory, and Windows ACL. By integrating with these systems, the NAS can enforce user authentication and access control based on existing security policies. This ensures that only authorized users can access the files and enhances the overall security of file access on the NAS.

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