Avoiding Data Loss on NAS D-Link DNS-300 and Recovering Deleted Files: Insider Guide

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

Avoiding Data Loss on NAS D-Link DNS-300 and Recovering Deleted Files: Insider Guide

D-Link DNS-300 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-300.

Avoiding Data Loss on NAS D-Link DNS-300 and Recovering Deleted Files: Insider 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.

Are there any recommended best practices for securely storing usernames and passwords on NAS D-Link DNS-300 devices?

Yes, there are several best practices for securely storing usernames and passwords on NAS (Network Attached Storage) devices like the D-Link DNS-300. Here are some recommendations:

  1. Change default credentials: Immediately change the default username and password provided by the manufacturer. Use strong, unique passwords that are not easily guessable.
  2. Enable two-factor authentication (2FA): Enable 2FA if supported by the NAS device. This adds an extra layer of security by requiring a second form of authentication, such as a code from a mobile app or a physical token.
  3. Regularly update firmware: Keep the NAS device's firmware up to date with the latest security patches. Manufacturers often release updates to fix vulnerabilities, so regularly check for updates and apply them promptly.
  4. Use strong passwords: Ensure that passwords used for accessing the NAS device are strong and complex. Use a combination of uppercase and lowercase letters, numbers, and special characters. Avoid using easily guessable passwords, such as common words or personal information.
  5. Limit access: Only provide access to the NAS device to authorized users. Create individual user accounts with unique usernames and passwords for each user. Grant appropriate access privileges based on the user's role and responsibilities.
  6. Implement network segmentation: Consider placing the NAS device on a separate network segment or VLAN (Virtual Local Area Network) to isolate it from other devices. This helps prevent unauthorized access to the NAS device from compromised devices on the network.
  7. Regular backups: Ensure that regular backups of the NAS device's data are performed. This helps protect against data loss due to hardware failure, accidental deletion, or ransomware attacks. Store backups in a secure location, preferably offsite or in the cloud.
  8. Disable unnecessary services: Disable any unused or unnecessary services on the NAS device. This reduces the attack surface and minimizes the risk of exploitation.
  9. Use encryption: Enable encryption for data stored on the NAS device. This helps protect sensitive information in case of unauthorized access or theft of the device.
  10. Monitor and log activity: Enable logging and monitoring features on the NAS device to track and identify any suspicious or unauthorized activity. Regularly review the logs to detect potential security incidents.

Remember, these best practices are general recommendations, and it's important to refer to the specific documentation and guidelines provided by D-Link for the DNS-300 device to ensure proper security measures are implemented.

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

Although NAS DNS-300 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-300. 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-300 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-300 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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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-300, feel free to leave a comment!
  • Kermit Robertson
    Kermit Robertson 12.09.2023 20:42 #
    Is it possible to recover data from a NAS D-Link DNS-300 device that has undergone a system restore or factory reset?
    • Hetman Software
      Hetman Software 12.09.2023 20:59 #

      Recovering data from a NAS device that has undergone a system restore or factory reset can be challenging, but it may still be possible depending on various factors. Here are a few considerations:

      1. Backup: If you had a backup of your data stored elsewhere, you can easily restore your files from that backup source.
      2. RAID Configuration: If your D-Link DNS-300 device was configured in a RAID setup (such as RAID 1 or RAID 5), there might be a chance to recover the data. In such cases, it is recommended to consult a data recovery specialist or contact D-Link support for guidance.
      3. Data Recovery Software: In some cases, data recovery software can help recover deleted or lost files from a NAS device. However, this method is not always reliable, and success may vary depending on the specific situation.
      4. Professional Data Recovery Services: If the data is critical and you are unable to recover it using software or other methods, you can consider employing professional data recovery services. These services specialize in recovering data from various storage devices, including NAS devices. They have specialized tools and techniques to recover data even from complex scenarios.

      Remember, it is crucial to stop using the NAS device immediately after data loss to prevent overwriting of the deleted files. Additionally, it is always recommended to regularly backup your important data to avoid such situations in the future.

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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

  • What are the necessary steps to connect an IP camera to a D-Link DNS-300 NAS device?

    To connect an IP camera to a D-Link DNS-300 NAS device, you need to follow these necessary steps:

    1. Ensure that your IP camera is compatible with the D-Link DNS-300 NAS device. Check the camera's documentation or D-Link's compatibility list to confirm compatibility.
    2. Connect the IP camera to your local network. Use an Ethernet cable to connect the camera to your router or switch. Make sure the camera is powered on and connected to the same network as the DNS-300 NAS device.
    3. Access the D-Link DNS-300 NAS device's web interface. Open a web browser on a computer connected to the same network and enter the DNS-300's IP address in the address bar. Log in using the administrator credentials.
    4. Configure the DNS-300 NAS device for IP camera integration. In the web interface, navigate to the camera settings or surveillance section. Look for options related to IP camera integration or adding a camera.
    5. Add the IP camera to the DNS-300 NAS device. Click on the "Add Camera" or similar button and provide the necessary information such as the camera's IP address, port number, username, and password. Save the settings.
    6. Configure camera settings. Depending on the DNS-300 NAS device, you may have options to configure camera-specific settings such as motion detection, recording schedules, or video quality. Adjust these settings as per your requirements.
    7. Test the connection. After adding the camera and configuring the settings, test the connection by accessing the camera feed through the DNS-300 NAS device's web interface. Ensure that you can view the live video stream and that the camera is functioning correctly.
    8. Set up recording and storage options. If desired, configure the DNS-300 NAS device to record and store video from the IP camera. Specify the storage location, recording duration, and any other relevant settings.
    9. Monitor and manage the IP camera. Once the connection is established, you can monitor and manage the IP camera through the DNS-300 NAS device's web interface. You may be able to view live feeds, access recorded videos, and adjust camera settings.

    Note: The specific steps and options may vary depending on the model and firmware version of the D-Link DNS-300 NAS device. Consult the device's user manual or D-Link's support documentation for detailed instructions.

  • Are there any specific compatibility requirements or limitations when connecting an IP camera to the D-Link DNS-300 NAS?

    Yes, there are certain compatibility requirements and limitations when connecting an IP camera to the D-Link DNS-300 NAS. Here are some important points to consider:

    1. Supported IP Camera Models: The D-Link DNS-300 NAS supports a limited number of IP camera models. You need to check the compatibility list provided by D-Link to ensure that your specific IP camera model is supported.
    2. Camera Compatibility Mode: The DNS-300 NAS may have a compatibility mode that allows it to work with non-supported IP cameras. However, this mode may have limitations, such as reduced functionality or limited features.
    3. Camera Configuration: Before connecting an IP camera to the NAS, you may need to configure the camera's settings according to the NAS requirements. This can include setting up network parameters, video stream settings, and authentication methods.
    4. Network Connectivity: Both the IP camera and the DNS-300 NAS need to be connected to the same network for proper communication. Ensure that your network infrastructure supports the required connectivity.
    5. NAS Storage Capacity: The DNS-300 NAS has a limited storage capacity, so consider the number of IP cameras you plan to connect and the amount of video footage you want to store. Make sure the NAS has sufficient storage space for your requirements.
    6. NAS Firmware Updates: Keep the NAS firmware up to date to ensure compatibility with the latest IP camera models and features. Check for firmware updates regularly on the D-Link website.
    7. Third-Party Software Compatibility: If you plan to use third-party software for managing and viewing IP camera footage, ensure that the software is compatible with the DNS-300 NAS and the connected IP cameras.

    It is recommended to consult the D-Link DNS-300 NAS user manual or contact D-Link support for specific compatibility details and any limitations.

  • Can you provide a step-by-step guide or tutorial on how to configure and set up the IP camera connection with the D-Link DNS-300 NAS?

    Sure! Here's a step-by-step guide on how to configure and set up the IP camera connection with the D-Link DNS-300 NAS:

    1. Connect your IP camera to your local network using an Ethernet cable. Make sure the camera is powered on and connected properly.
    2. Connect your D-Link DNS-300 NAS to your local network using an Ethernet cable. Ensure that the NAS is powered on and connected properly.
    3. Open a web browser on your computer and enter the IP address of the DNS-300 NAS in the address bar. The default IP address is usually "192.168.0.32" or "192.168.1.32". Press Enter to access the NAS configuration page.
    4. Log in to the NAS using your administrator credentials. If you haven't set up an administrator account, use the default username "admin" and password "admin".
    5. Once logged in, navigate to the "Camera" or "Surveillance" section of the NAS configuration page. The exact location may vary depending on the firmware version.
    6. Click on the "Add Camera" or "Add IP Camera" button to start the camera setup process.
    7. In the camera setup wizard, enter a name for your IP camera. This can be any descriptive name to help you identify the camera later.
    8. Select the manufacturer and model of your IP camera from the provided list. If your camera is not listed, choose the closest match or select "Generic" if available.
    9. Enter the IP address, username, and password of your IP camera. This information is usually provided by the camera manufacturer or can be found in the camera's documentation.
    10. Configure the camera settings according to your preferences. This may include adjusting the video resolution, frame rate, recording options, and motion detection settings. Consult your IP camera's documentation for specific configuration details.
    11. Save the camera settings and wait for the NAS to establish a connection with the IP camera. This process may take a few moments.
    12. Once the connection is established, you should see a live video feed from your IP camera within the NAS configuration page. You can also access the camera feed through the NAS's mobile app or web interface.
    13. Repeat the above steps for any additional IP cameras you want to connect to the DNS-300 NAS.

    That's it! You have successfully configured and set up the IP camera connection with the D-Link DNS-300 NAS. You can now access and manage your camera feeds through the NAS's interface.

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