How to recover data from Uniview VX1824-NAS 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 Uniview VX1824-NAS

Uniview VX1824-NAS NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from VX1824-NAS.

How to recover data from NAS Uniview VX1824-NAS

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 Uniview 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 a NAS Uniview VX1824-NAS device's network throughput or bandwidth capacity affect data transfer and potential loss?

The network throughput or bandwidth capacity of a NAS (Network Attached Storage) device like the Uniview VX1824-NAS can significantly impact data transfer and potential loss in the following ways:

  1. Data Transfer Speed: The network throughput capacity determines the maximum speed at which data can be transferred between the NAS device and other network-connected devices. A higher throughput allows for faster data transfers, reducing the time required to access or transfer files. Conversely, a lower throughput can result in slower data transfers, leading to delays and increased latency.
  2. Concurrent Connections: The NAS device's network throughput capacity also affects the number of concurrent connections it can handle efficiently. If the device has limited throughput, it may struggle to handle multiple simultaneous connections, resulting in slower data transfer speeds or even connection drops. This can impact productivity and user experience, especially in scenarios with heavy network traffic or multiple users accessing the NAS simultaneously.
  3. Potential Data Loss: Inadequate network throughput can increase the likelihood of data loss during data transfers. Insufficient bandwidth may cause packet loss or corruption, leading to incomplete or corrupted files. If the network is congested or the NAS device's throughput is exceeded, data packets may be dropped or arrive out of order, resulting in data integrity issues and potential loss.
  4. Backup and Recovery: Network throughput capacity affects the speed and efficiency of backup and recovery processes. Insufficient bandwidth can slow down backup operations, extending the time required to complete backups or increasing the frequency of backup failures. Similarly, slower data transfer speeds can impact the recovery process, delaying the restoration of critical data during system failures or data loss incidents.

To mitigate these potential issues, it is essential to ensure that the NAS device's network throughput capacity aligns with the network's requirements and expected data transfer demands. Regular monitoring and optimization of network resources, including bandwidth allocation and network traffic management, can help maintain optimal data transfer speeds and minimize potential data loss.

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

Although NAS VX1824-NAS 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 Uniview VX1824-NAS. 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 Uniview

How to recover data from a Uniview

VX1824-NAS has 24 HDD slots, and it supports the following array types:

  • RAID 0;
  • RAID 1;
  • RAID 5;
  • RAID 6;
  • RAID 50;
  • RAID 60;
  • 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 Uniview VX1824-NAS 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 VX1824-NAS, feel free to leave a comment!
  • Benjamin Hodgkinson
    Benjamin Hodgkinson 10.09.2023 00:39 #
    Is it possible to recover data from a NAS Uniview VX1824-NAS device that has been affected by a natural disaster such as flooding or earthquake?
    • Hetman Software
      Hetman Software 10.09.2023 00:59 #

      Recovering data from a NAS device that has been affected by a natural disaster such as flooding or earthquake is challenging, but not impossible. The success of data recovery depends on the extent of the damage caused by the disaster. Here are a few factors to consider:

      1. Severity of damage: If the NAS device has been completely submerged in water or severely damaged by an earthquake, the chances of recovering data directly from the device may be slim. However, if the device has suffered minimal damage, there might be a higher possibility of data recovery.
      2. Data redundancy: NAS devices often offer various levels of data redundancy, such as RAID configurations or backup systems. If the NAS device was set up with data redundancy, there may be copies of the data stored elsewhere, increasing the chances of recovery.
      3. Professional data recovery services: In cases of severe damage, it is recommended to seek professional data recovery services. These experts have specialized tools and techniques to recover data from damaged storage devices, including NAS devices. They can disassemble the device, repair or replace damaged components, and attempt to retrieve the data.
      4. Data recovery costs: Professional data recovery services can be expensive, especially for severe damage. The cost will depend on the extent of the damage, the complexity of the recovery process, and the amount of data to be recovered. It is essential to weigh the value of the data against the potential cost of recovery.

      In any case, it is crucial to disconnect the affected NAS device from power and not attempt to power it on or recover data without professional guidance. Contacting the manufacturer or a reputable data recovery service provider would be the best course of action for assessing the situation and exploring recovery options.

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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 steps to access files on the NAS Uniview VX1824-NAS from a remote location?

    To access files on the NAS Uniview VX1824-NAS from a remote location, follow these steps:

    1. Ensure the NAS is connected to the internet: Make sure the NAS device is properly connected to your network and has an active internet connection.
    2. Configure port forwarding: Access your router's settings and set up port forwarding for the NAS device. This allows incoming connections to reach the NAS from outside your local network. Typically, you need to forward port 80 (HTTP) and port 443 (HTTPS) for web access, and other specific ports if required by the NAS manufacturer.
    3. Obtain the NAS IP address: Determine the IP address assigned to the NAS device on your local network. This can usually be found in the NAS settings or by checking your router's connected devices list.
    4. Configure dynamic DNS (optional): If your internet connection has a dynamic IP address (changes periodically), consider setting up a dynamic DNS service. This associates a domain name with your changing IP address, allowing you to access the NAS using a consistent URL.
    5. Enable remote access: Access the NAS settings through its web interface using a browser. Look for a remote access or cloud service option, and enable it. You may need to create an account with the NAS manufacturer's cloud service or set up a DDNS account.
    6. Set up user accounts and permissions: Configure user accounts and permissions on the NAS to control who can access specific files or folders remotely. This ensures security and privacy for your data.
    7. Install and configure VPN (optional): For enhanced security, consider setting up a Virtual Private Network (VPN) on your NAS. This allows you to securely access files by establishing an encrypted connection between your remote device and the NAS.
    8. Access files remotely: Once the above steps are completed, you can access the files on the NAS from a remote location. Open a web browser, enter the NAS IP address or DDNS domain name, and append the appropriate port number (e.g., http://NAS_IP:80 or https://NAS_IP:443). You may be prompted to log in with your NAS account credentials.

    Note: The exact steps may vary slightly depending on the specific model and brand of the NAS device. It is recommended to refer to the manufacturer's documentation or support resources for detailed instructions tailored to your NAS model.

  • Are there any specific requirements or settings that need to be configured in order to access files on the NAS Uniview VX1824-NAS from a remote location?

    In order to access files on the NAS Uniview VX1824-NAS from a remote location, you may need to consider the following requirements and settings:

    1. Network Configuration: Ensure that your NAS device is connected to a stable internet connection with a public IP address or configured with port forwarding on your router.
    2. Dynamic DNS (DDNS): If your internet connection has a dynamic IP address, you can set up a DDNS service to assign a domain name to your NAS. This allows you to access it using a consistent address even if your IP changes.
    3. Port Forwarding: Configure your router to forward the necessary ports to the internal IP address of your NAS. Typically, you would need to forward ports like 80 (HTTP), 443 (HTTPS), and 21 (FTP) for accessing files remotely.
    4. Firewall Settings: Ensure that your firewall or security software is not blocking the incoming connections to the NAS. You may need to create exceptions or rules to allow access to the required ports.
    5. VPN (Virtual Private Network): Setting up a VPN can provide a secure and encrypted connection to access your NAS remotely. This adds an extra layer of protection to your data during transmission.
    6. NAS Configuration: Check if your NAS has remote access settings or features. You may need to enable remote access, configure user permissions, and set up shared folders that can be accessed remotely.
    7. Authentication and Security: It is recommended to use strong passwords and enable two-factor authentication (2FA) for added security. Regularly update the firmware of your NAS device to ensure it has the latest security patches.
    8. Software and Apps: Depending on the NAS manufacturer, they may provide specific software or mobile apps that allow remote access to your files. Install and configure these applications on your remote devices for easy access.

    It is important to refer to the user manual or documentation provided by the manufacturer for specific instructions on accessing files on the Uniview VX1824-NAS from a remote location, as the settings and requirements may vary depending on the device model and firmware version.

  • What are the security measures in place to ensure the safe and secure access of files on the NAS Uniview VX1824-NAS from a remote location?

    To ensure the safe and secure access of files on the NAS Uniview VX1824-NAS from a remote location, several security measures are typically implemented. These measures may include:

    1. Secure Socket Layer (SSL) or Transport Layer Security (TLS): The NAS should support encrypted connections using SSL or TLS protocols. This ensures that the data transmitted between the remote location and the NAS is encrypted and protected from eavesdropping and tampering.
    2. Two-Factor Authentication (2FA): Implementing 2FA adds an extra layer of security by requiring users to provide two different forms of authentication, such as a password and a temporary code sent to their mobile device. This helps prevent unauthorized access even if the password is compromised.
    3. Virtual Private Network (VPN): Using a VPN connection to access the NAS from a remote location adds an additional layer of security. VPNs establish an encrypted tunnel between the remote device and the NAS, making it more difficult for attackers to intercept or manipulate the data.
    4. Firewall and Intrusion Detection/Prevention System (IDS/IPS): Configuring a firewall on the NAS helps protect it from unauthorized access and blocks potentially malicious traffic. Additionally, an IDS/IPS can be employed to monitor network traffic and detect any suspicious activity or attempts to exploit vulnerabilities.
    5. Access Control Lists (ACLs): ACLs allow administrators to define specific access rules and permissions for different users or groups. By carefully configuring ACLs, administrators can ensure that only authorized users have access to specific files or folders on the NAS.
    6. Regular Firmware and Security Updates: Keeping the NAS firmware up to date with the latest security patches is crucial to protect against known vulnerabilities. Regularly checking for and applying firmware updates helps ensure that any identified security weaknesses are addressed promptly.
    7. Strong Password Policies: Enforcing strong password policies, such as requiring a combination of uppercase and lowercase letters, numbers, and special characters, helps prevent unauthorized access through brute-force attacks.
    8. User Account Management: Administrators should regularly review and manage user accounts to remove any unnecessary or inactive accounts. This reduces the risk of unauthorized access due to compromised or forgotten accounts.

    It is important to note that the specific security measures available and their configuration may vary depending on the specific model and firmware version of the NAS Uniview VX1824-NAS. It is recommended to consult the manufacturer's documentation or contact their support for detailed instructions on implementing security measures for this particular device.

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