How to recover data from D-Link DNS-346 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 D-Link DNS-346

D-Link DNS-346 NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from DNS-346.

How to recover data from NAS D-Link DNS-346

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 D-Link 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 recommended practices for off-site backup storage to prevent complete data loss in the event of a disaster?

Yes, there are several recommended practices for off-site backup storage to prevent complete data loss in the event of a disaster. Here are some key practices:

  1. Regular backups: Perform regular backups of all critical data and systems. Automated backup solutions can help ensure consistency and minimize human error.
  2. Multiple backup locations: Store backups in multiple off-site locations to minimize the risk of losing data in a single location. This can include physical locations or cloud-based storage.
  3. Encryption: Encrypt the backup data to protect it from unauthorized access during storage and transmission. This ensures that even if the data is compromised, it remains secure.
  4. Test backups regularly: Regularly test the backup and recovery process to ensure data integrity and the ability to restore systems effectively. This helps identify any issues or gaps in the backup strategy.
  5. Versioning and retention: Implement versioning and retention policies to store multiple versions of backups over time. This allows for recovery from different points in time and protects against data corruption or accidental deletion.
  6. Redundancy and replication: Use redundant storage systems and replication techniques to ensure data is stored in multiple locations simultaneously. This provides additional protection against hardware failures and increases data availability.
  7. Disaster recovery plan: Develop a comprehensive disaster recovery plan that outlines the steps to be taken in the event of a disaster. This plan should include details on data restoration, system recovery, and the roles and responsibilities of individuals involved.
  8. Regular monitoring and maintenance: Continuously monitor the backup systems and storage infrastructure to ensure they are functioning properly. Regular maintenance and updates help prevent issues and ensure the readiness of the backup environment.
  9. Off-site backup rotation: Rotate backup media regularly, especially for physical backups. This ensures that multiple copies of data are stored off-site and reduces the risk of losing all backups in case of a localized disaster.
  10. Documented procedures: Document all backup and recovery procedures, including step-by-step instructions, contact information, and any necessary credentials. This helps ensure that the recovery process can be executed efficiently and effectively.

By following these recommended practices, organizations can significantly enhance their ability to recover data and systems in the event of a disaster, minimizing the risk of complete data loss.

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

Although NAS DNS-346 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 D-Link DNS-346. 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 D-Link

How to recover data from a D-Link

DNS-346 has 4 HDD slots, and it supports the following array types:

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

NAS supports:

  • exFAT, VFAT, FAT 12 / 16 / 32;
  • NTFS / ReFS;
  • APFS / HFS+;
  • Ext2 / 3 / 4 / ReiserFS / XFS / UFS / ZFS / Btrfs;
  • VMFS / HikvisionFS;

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 D-Link DNS-346 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 DNS-346, feel free to leave a comment!
  • Isaiah Bysshe
    Isaiah Bysshe 12.09.2023 18:47 #
    Can data recovery from a NAS D-Link DNS-346 device be performed if there are issues with the network protocols or settings?
    • Hetman Software
      Hetman Software 12.09.2023 19:00 #

      Data recovery from a NAS device like the D-Link DNS-346 can be challenging if there are issues with the network protocols or settings. However, it is still possible to recover data from the device using alternative methods. Here are a few options:

      1. Direct connection: If the NAS device supports direct connection via USB or eSATA, you can connect it directly to a computer and attempt to recover the data using specialized data recovery software.
      2. Remove hard drives: If the NAS device uses standard hard drives, you can remove them and connect them to a computer directly or using a compatible external enclosure. This allows you to bypass any network-related issues and recover the data.
      3. Clone the drives: If the hard drives are still functional but the NAS device itself is not working correctly, you can clone the drives to new ones using specialized cloning tools. Once the drives are cloned, you can connect them to a computer and attempt data recovery.
      4. Seek professional help: If you are not comfortable performing the data recovery yourself or if the data is critical, it is recommended to seek professional data recovery services. They have the expertise and specialized tools to recover data from various storage devices, including NAS devices.

      It's important to note that attempting data recovery on your own may involve some risks, such as further data loss or damage to the device. Therefore, it is always recommended to take proper precautions and consider professional assistance if needed.

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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 D-Link DNS-346 enhance the functionality of a surveillance system compared to traditional storage solutions?

    The NAS D-Link DNS-346 enhances the functionality of a surveillance system compared to traditional storage solutions in several ways:

    1. Centralized storage: The DNS-346 acts as a centralized storage solution for surveillance footage, allowing multiple cameras to send their recordings to a single location. This eliminates the need for individual storage devices for each camera, making it easier to manage and access the footage.
    2. Scalability: The DNS-346 supports multiple hard drives, allowing for easy expansion of storage capacity as the surveillance system grows. Traditional storage solutions may have limited capacity and require additional devices to accommodate more cameras or longer retention periods.
    3. Redundancy and data protection: The DNS-346 supports RAID configurations, providing redundancy and data protection in case of hard drive failures. This ensures that surveillance footage is not lost and the system remains operational. Traditional storage solutions may lack such data protection mechanisms, making them more vulnerable to data loss.
    4. Network accessibility: The DNS-346 is a network-attached storage device, which means it can be accessed remotely over the network. This enables authorized users to view and manage surveillance footage from anywhere, using any device with network connectivity. Traditional storage solutions may require physical access to the storage device, limiting remote accessibility.
    5. Advanced features: The DNS-346 may offer additional features like built-in video management software, motion detection, event notifications, and scheduled backups. These features enhance the functionality of the surveillance system by providing advanced monitoring and management capabilities. Traditional storage solutions may not have these integrated features, requiring separate software or devices for similar functionality.

    Overall, the NAS D-Link DNS-346 provides a more efficient, scalable, and feature-rich storage solution for surveillance systems compared to traditional storage options.

  • What are the key features and capabilities of the NAS D-Link DNS-346 that make it suitable for use in a surveillance system?

    The D-Link DNS-346 NAS (Network Attached Storage) has several key features and capabilities that make it suitable for use in a surveillance system:

    1. High storage capacity: The DNS-346 offers up to four drive bays, allowing for a large amount of storage space. This is important for storing the high-resolution video footage typically generated by surveillance cameras.
    2. RAID support: The NAS supports various RAID configurations (RAID 0, 1, 5, 10, JBOD), providing data redundancy and protection against drive failures. This ensures that surveillance footage is securely stored and minimizes the risk of data loss.
    3. Network connectivity: The DNS-346 has Gigabit Ethernet ports, enabling fast and reliable data transfer between the NAS and the surveillance cameras. This is crucial for real-time monitoring and remote access to the surveillance system.
    4. Surveillance Station support: The NAS is compatible with D-Link's Surveillance Station software. This software allows users to manage and monitor multiple IP cameras, record video footage, and set up motion detection alerts. It provides a comprehensive surveillance solution that integrates seamlessly with the DNS-346.
    5. Scalability: The NAS supports up to 16 IP cameras, making it suitable for small to medium-sized surveillance systems. It can be easily expanded by adding additional cameras or upgrading the storage capacity as needed.
    6. Remote access and mobile app: The DNS-346 allows users to access their surveillance system remotely through a web browser or the mydlink mobile app. This enables users to view live video feeds, playback recorded footage, and receive notifications on their smartphones or tablets, enhancing the system's convenience and accessibility.
    7. User-friendly interface: The NAS features an intuitive web-based interface, making it easy to set up and configure the surveillance system. It also offers advanced features such as scheduled recording, event-based recording, and customizable motion detection settings.

    Overall, the D-Link DNS-346 NAS provides a reliable and scalable storage solution for surveillance systems, with features specifically tailored to meet the requirements of a surveillance environment.

  • Can the NAS D-Link DNS-346 be easily integrated with existing surveillance cameras and software applications, and what are the steps involved in setting it up for a surveillance system?

    The D-Link DNS-346 is a Network Attached Storage (NAS) device, primarily designed for data storage and backup purposes. It does not have built-in support for directly integrating surveillance cameras or software applications for surveillance purposes.

    However, you can still use the DNS-346 as a storage solution for your surveillance system by following these general steps:

    1. Set up your surveillance cameras: Install and configure your surveillance cameras according to their respective manufacturer's instructions. Ensure they are connected to your local network.
    2. Choose surveillance software: Select a surveillance software application that is compatible with your cameras and meets your requirements. Some popular options include Blue Iris, Milestone XProtect, or ZoneMinder.
    3. Install and configure the surveillance software: Follow the installation instructions provided by the software vendor. Configure the software to recognize and connect to your surveillance cameras.
    4. Configure storage settings: Within the surveillance software, configure the storage settings to save the recorded footage to the D-Link DNS-346 NAS device. This process may involve specifying the network path or IP address of the NAS device.
    5. Set up user accounts and access rights: Create user accounts on the DNS-346 NAS device with appropriate access rights to the surveillance storage folders. This step ensures that only authorized users can access the recorded footage.
    6. Test and monitor: After completing the setup, test the surveillance system to ensure that the cameras are recording and the footage is being saved to the NAS device correctly. Monitor the system regularly to ensure smooth operation.

    It's important to note that the specific steps may vary depending on the surveillance software and cameras you are using. Always refer to the documentation provided by the software and camera manufacturers for detailed setup instructions.

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