Avoiding Data Loss on NAS D-Link DNS-325 and Recovering Deleted Files: Pro Guide

Use ⭐ NAS RAID setups to prevent data loss and recover deleted files.

Avoiding Data Loss on NAS D-Link DNS-325 and Recovering Deleted Files: Pro Guide

D-Link DNS-325 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-325.

Avoiding Data Loss on NAS D-Link DNS-325 and Recovering Deleted Files: Pro Guide

RAID Recovery™ 2.6
Recover data from damaged RAID arrays inaccessible from a computer.
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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.

Can improper configuration of network settings or IP addresses result in data loss on NAS D-Link DNS-325 devices?

Improper configuration of network settings or IP addresses can potentially result in connectivity issues or loss of access to the data stored on NAS devices such as the D-Link DNS-325. However, it is unlikely to directly cause data loss on the device itself.

Changing network settings or IP addresses without proper knowledge or understanding can lead to difficulties in accessing the NAS device over the network. This can result in temporary loss of connectivity, making it difficult to access or transfer data to and from the device.

It is important to note that data loss is more likely to occur due to other factors such as hardware failure, power outages, firmware issues, or accidental deletion. It is always recommended to have proper backups in place to mitigate the risk of data loss regardless of network configuration.

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

Although NAS DNS-325 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-325. 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-325 has 2 HDD slots, and it supports the following array types:

  • RAID 0;
  • RAID 1;
  • 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-325 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

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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-325, feel free to leave a comment!
  • Hayden Liddell
    Hayden Liddell 12.09.2023 16:39 #
    Can data recovery from a NAS D-Link DNS-325 device be performed if there are issues with the storage controller?
    • Hetman Software
      Hetman Software 12.09.2023 16:59 #

      Yes, data recovery from a NAS D-Link DNS-325 device can still be performed even if there are issues with the storage controller. In such cases, the data recovery process typically involves removing the hard drives from the NAS device and connecting them to a different computer or NAS device to access the data. This allows bypassing the faulty storage controller and accessing the data directly from the hard drives. However, it is recommended to consult with a professional data recovery service or a knowledgeable technician to ensure a safe and successful recovery process.

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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 xaker.ru, 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.

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Questions and answers

  • How does the D-Link DNS-325 NAS device support internet access and what are its key features in this regard?

    The D-Link DNS-325 NAS device supports internet access through its built-in network connectivity features. It can be connected to a local network via an Ethernet cable, allowing it to access the internet through the network's internet connection.

    Key features of the D-Link DNS-325 NAS device in terms of internet access include:

    1. FTP Server: The device can act as an FTP (File Transfer Protocol) server, allowing users to remotely access and transfer files over the internet.
    2. Remote File Access: Users can access and manage their files stored on the NAS device from anywhere with an internet connection. This can be done through a web interface or dedicated mobile apps provided by D-Link.
    3. Remote Backup: The device supports remote backup functionality, enabling users to schedule backups of their important data to an offsite location over the internet.
    4. Web File Server: The D-Link DNS-325 NAS device can host a web-based file server, allowing users to securely share files with others over the internet. Access to files can be restricted with password protection and user permissions.
    5. Dynamic DNS Support: The device supports Dynamic DNS (DDNS) services, which allow users to access their NAS device using a domain name instead of an IP address. This is useful for users with dynamic IP addresses that may change over time.
    6. Media Streaming: The NAS device supports media streaming over the internet, allowing users to stream their multimedia content such as videos, music, and photos to compatible devices remotely.

    Overall, the D-Link DNS-325 NAS device provides various features and functionalities to facilitate internet access, remote file management, data backup, and media streaming for users.

  • Can the D-Link DNS-325 NAS be used as a router for internet connectivity? If so, what are the steps to set it up?

    No, the D-Link DNS-325 NAS cannot be used as a router for internet connectivity. The DNS-325 is a Network Attached Storage device designed for file storage and sharing purposes. It does not have the necessary hardware or software features to function as a router.

    To set up internet connectivity, you would need a separate router that connects to your modem and provides network services to devices in your network.

  • What are the advantages of using the D-Link DNS-325 NAS for internet access compared to other similar devices in the market?

    There are several advantages of using the D-Link DNS-325 NAS for internet access compared to other similar devices in the market. Some of these advantages include:

    1. Easy setup: The D-Link DNS-325 NAS offers a simple and straightforward setup process, making it easy for users to get started quickly.
    2. High storage capacity: The DNS-325 NAS supports up to two hard drives, allowing for a high storage capacity. This is beneficial for users who require a large amount of storage space for their files and media.
    3. RAID support: The DNS-325 NAS supports RAID 0, 1, and JBOD configurations, providing users with options for data redundancy and increased performance.
    4. Gigabit Ethernet: The device comes with a Gigabit Ethernet port, allowing for fast and reliable network connectivity.
    5. Remote access: The DNS-325 NAS supports remote access, enabling users to access their files and media from anywhere with an internet connection. This is particularly useful for users who need to access their data while on the go.
    6. Media streaming capabilities: The device supports media streaming, allowing users to stream their multimedia content to compatible devices such as smart TVs, gaming consoles, and media players.
    7. USB ports: The DNS-325 NAS is equipped with USB ports, enabling users to connect additional external storage devices or printers for added functionality.
    8. User-friendly interface: The device features a user-friendly interface that makes it easy to navigate and manage files, settings, and other features.
    9. Energy-efficient: The DNS-325 NAS is designed to be energy-efficient, helping to reduce power consumption and lower operating costs.
    10. Affordable pricing: Compared to other similar devices in the market, the D-Link DNS-325 NAS offers competitive pricing, making it a cost-effective option for users in need of a network storage solution.
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