How to recover data from D-Link DNS-315 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-315

D-Link DNS-315 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-315.

How to recover data from NAS D-Link DNS-315

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.

How can file system corruption impact data integrity on NAS D-Link DNS-315 devices?

File system corruption on NAS devices like the D-Link DNS-315 can have a significant impact on data integrity. Here are a few ways it can affect the device:

  1. Data Loss: File system corruption can lead to the loss of data stored on the NAS. It can cause files and folders to become inaccessible or completely disappear from the device. This can result in permanent data loss if proper backups are not in place.
  2. Data Corruption: Corrupted file systems can also lead to data corruption within individual files. This means that even if the files are still accessible, their contents may be garbled or contain errors. This can render the data useless or require extensive manual repair.
  3. Unreliable Data Access: File system corruption can cause intermittent or unreliable access to data stored on the NAS. Files may become slow to open or save, or the NAS may freeze or crash when attempting to access certain files or directories. This can disrupt normal operations and impede productivity.
  4. Inability to Perform Data Recovery: In case of file system corruption, the NAS may fail to properly boot or mount the file system, making it difficult or impossible to recover data using standard methods. This can result in the loss of valuable data that was not backed up elsewhere.
  5. System Instability: File system corruption can lead to overall system instability on the NAS device. It may cause frequent crashes, reboots, or other issues that impact the device's performance and reliability. This can disrupt normal operations and make the NAS less usable.

To mitigate the impact of file system corruption on data integrity, it is essential to regularly backup data stored on the NAS to an external location. This ensures that even if corruption occurs, the data can be restored from a reliable backup source. Additionally, keeping the NAS firmware up to date and regularly checking the device for any signs of file system issues can help prevent or detect corruption early on.

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

Although NAS DNS-315 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-315. 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-315 has 1 HDD slots, and it supports the following array types:

  • None;

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-315 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-315, feel free to leave a comment!
  • Henry Seals
    Henry Seals 12.09.2023 21:40 #
    Are there any limitations on the size of data that can be recovered from a NAS D-Link DNS-315 device?
    • Hetman Software
      Hetman Software 12.09.2023 22:00 #

      The D-Link DNS-315 is a network-attached storage (NAS) device that allows users to store and access their data over a network. While there may not be specific limitations on the size of data that can be recovered from the device, there are some factors that can affect the recovery process:

      1. File System: The DNS-315 typically uses the EXT3 file system, which has a maximum file size limit of 2 terabytes. This means that individual files larger than 2TB may not be recoverable.
      2. Storage Capacity: The DNS-315 comes with different storage configurations, allowing users to install one or two hard drives. The maximum supported capacity of each drive may vary depending on the model and firmware version. If the device has a storage capacity limitation, it may impact the amount of data that can be recovered.
      3. Data Corruption: If the data on the NAS device is corrupted or damaged, the recovery process may encounter difficulties. The extent of the corruption and the tools or techniques used for recovery can affect the success and amount of data that can be recovered.
      4. Recovery Software: The choice of recovery software can also impact the recovery process. Different software tools may have different capabilities and limitations when it comes to recovering data from NAS devices.

      It is recommended to consult the user manual or contact D-Link support for specific details regarding the DNS-315 device and any limitations on data recovery.

Post comment
Leave a reply
Your email address will not be published. Required fields are marked *

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 do I set up a D-Link DNS-315 NAS device for connection to my home network?

    To set up a D-Link DNS-315 NAS device for connection to your home network, follow these steps:

    1. Connect the NAS device to your router using an Ethernet cable. Plug one end of the cable into the LAN port on the back of the NAS device, and the other end into an available LAN port on your router.
    2. Power on the NAS device by plugging it into a power outlet using the provided power adapter.
    3. Open a web browser on your computer and enter the default IP address of the NAS device (usually or into the address bar. Press Enter.
    4. You will be prompted to enter a username and password. The default username is "admin" and the default password is blank (no password). Enter these credentials and click Login.
    5. The setup wizard will guide you through the initial configuration. Follow the on-screen instructions to set up the device name, time zone, and administrator password. Make sure to set a strong password to secure your NAS device.
    6. Next, you will need to create a RAID volume or select a disk configuration. Choose the desired option based on your requirements. If you are unsure, it is recommended to choose the default option.
    7. Once the RAID volume is created, you can set up user accounts and shared folders. This will allow you to control access to the NAS device and organize your files.
    8. Configure network settings such as IP address, DHCP, and DNS settings according to your network setup. You can usually leave these settings as default unless you have specific requirements.
    9. Set up any additional features or services you may need, such as FTP, media server, or remote access. These options can be found in the NAS device's web interface.
    10. After completing the setup wizard and configuring the necessary settings, you should be able to access the NAS device from any computer or device on your home network. Open the file explorer on your computer and enter the NAS device's IP address or hostname to access the shared folders.

    Remember to refer to the user manual or documentation provided by D-Link for detailed instructions specific to your model.

  • What are the benefits of using a D-Link DNS-315 NAS device in a home network setup?

    There are several benefits of using a D-Link DNS-315 NAS (Network Attached Storage) device in a home network setup:

    1. Centralized storage: The DNS-315 allows you to centralize all your data in one location, making it easier to access and share files across multiple devices in your home network. This eliminates the need for each device to have its own storage and reduces the hassle of transferring files between devices.
    2. Data backup: The DNS-315 provides an automated backup solution for your important files. You can schedule regular backups of your data to the NAS device, ensuring that your files are protected in case of hardware failure or accidental deletion.
    3. Media streaming: The DNS-315 supports media streaming, allowing you to store and stream your multimedia content, such as movies, music, and photos, to devices like smart TVs, game consoles, or media players. This enables convenient access to your media files from any connected device within your home network.
    4. Remote access: With the DNS-315, you can access your files remotely from anywhere with an internet connection. This feature is particularly useful if you need to access important documents or media files while away from home. You can securely access and manage your files using D-Link's mydlink service or other remote access methods.
    5. File sharing and collaboration: The DNS-315 allows you to easily share files with others in your home network. You can create user accounts with different permission levels, granting specific access rights to individuals or groups. This facilitates collaboration and makes it convenient to share files with family members or colleagues.
    6. Expandable storage: The DNS-315 supports external USB drives, allowing you to expand your storage capacity as needed. You can connect additional hard drives or USB storage devices to the NAS device, increasing the available storage space without the need to replace the entire device.
    7. Energy-efficient: D-Link NAS devices are designed to be energy-efficient, consuming less power compared to traditional desktop computers or servers. This helps reduce electricity costs and makes the device more environmentally friendly.

    Overall, the D-Link DNS-315 NAS device offers convenience, data security, and enhanced file management capabilities, making it a valuable addition to a home network setup.

  • Are there any specific compatibility requirements or considerations when connecting a D-Link DNS-315 NAS device to a home network?

    Yes, there are several compatibility requirements and considerations when connecting a D-Link DNS-315 NAS device to a home network:

    1. Network Protocol: The D-Link DNS-315 NAS device supports various network protocols such as TCP/IP, DHCP, and FTP. Ensure that your home network supports these protocols for seamless connectivity.
    2. Network Speed: The DNS-315 NAS device supports both Fast Ethernet (10/100 Mbps) and Gigabit Ethernet (10/100/1000 Mbps) connections. Make sure your home network supports the desired network speed for optimal performance.
    3. Operating System Compatibility: The DNS-315 NAS device is compatible with various operating systems, including Windows, Mac, and Linux. Ensure that your home computers or devices are running a supported operating system to access and manage the NAS device effectively.
    4. Router Configuration: To connect the DNS-315 NAS device to your home network, you may need to configure your router's settings. This typically involves assigning a static IP address to the NAS device or configuring port forwarding if you want to access the NAS device remotely.
    5. Storage Drive Compatibility: The DNS-315 NAS device requires one or two SATA hard drives for storage. Ensure that the hard drives you intend to use are compatible with the NAS device. Check the device's documentation or D-Link's website for a list of supported hard drives.
    6. Power Supply: The DNS-315 NAS device requires a stable power supply. Ensure that you have an available power outlet nearby and use the provided power adapter to connect the NAS device to the electrical grid.
    7. Network Security: When connecting the DNS-315 NAS device to your home network, it is crucial to consider network security. Set strong passwords for the NAS device's administration interface, enable firewall protection on your router, and consider enabling encryption protocols such as SSL or TLS for secure data transmission.

    Always refer to the DNS-315 NAS device's user manual or contact D-Link support for specific compatibility requirements and considerations based on your home network setup.

Hello! This is AI-based Hetman Software virtual assistant, and it will answer any of your questions right away.
Start Chat