How to recover data from Uniview VS-R5348D-C2V@AI 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 VS-R5348D-C2V@AI

Uniview VS-R5348D-C2V@AI NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from VS-R5348D-C2V@AI.

How to recover data from NAS Uniview VS-R5348D-C2V@AI

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.

Can the use of redundant power supplies reduce the chances of data loss on NAS Uniview VS-R5348D-C2V@AI devices?

Yes, the use of redundant power supplies can help reduce the chances of data loss on NAS (Network Attached Storage) devices like Uniview VS-R5348D-C2V@AI. Redundant power supplies ensure that if one power supply fails, the other one takes over immediately, providing uninterrupted power to the device.

Power interruptions or failures can lead to data loss or corruption, especially if the NAS is in the middle of writing or transferring data. By having redundant power supplies, the NAS device can continue operating even if one power supply fails, minimizing the risk of data loss.

However, it's important to note that redundant power supplies alone may not be sufficient to prevent all types of data loss. Other factors such as proper backup strategies, redundant storage configurations, and data replication should also be considered to ensure data integrity and availability.

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

Although NAS VS-R5348D-C2V@AI 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 VS-R5348D-C2V@AI. 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

VS-R5348D-C2V@AI has 4 HDD slots, and it supports the following array types:

  • RAID 0;
  • RAID 1;
  • RAID 5;
  • RAID 6;
  • 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 VS-R5348D-C2V@AI 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 VS-R5348D-C2V@AI, feel free to leave a comment!
  • Jameson Easmon
    Jameson Easmon 9.09.2023 13:40 #
    Is it necessary to have a backup of the NAS Uniview VS-R5348D-C2V@AI data before attempting data recovery?
    • Hetman Software
      Hetman Software 9.09.2023 14:00 #

      Yes, it is highly recommended to have a backup of the data on your NAS (Network Attached Storage) device before attempting any data recovery. This is because the data recovery process can be complex and there is always a risk of further data loss or damage during the recovery process. Having a backup ensures that you have a safe and secure copy of your data that can be easily restored in case anything goes wrong during the 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, 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

  • What are the key features and functionalities of the NAS Uniview VS-R5348D-C2V@AI web interface?

    The key features and functionalities of the NAS Uniview VS-R5348D-C2V@AI web interface include:

    1. User-friendly interface: The web interface is designed to be intuitive and easy to navigate, allowing users to quickly access and manage various functions.
    2. Live view: Users can view live video streams from connected cameras in real-time. Multiple camera views can be displayed simultaneously for monitoring large areas.
    3. Playback and search: The interface allows users to search and playback recorded video footage. They can specify the date, time, and camera to quickly find the desired footage.
    4. PTZ control: Users can control PTZ (pan-tilt-zoom) cameras directly from the web interface. They can remotely adjust the camera's position, zoom in or out, and perform other PTZ functions.
    5. Alarm management: The interface enables users to configure and manage alarms. They can set up motion detection, tampering detection, and other alarm triggers to receive notifications and take appropriate actions.
    6. Smart AI functions: The NAS Uniview VS-R5348D-C2V@AI web interface supports AI-powered features such as face recognition, people counting, and perimeter protection. Users can configure and utilize these intelligent functions to enhance security and surveillance.
    7. Network and system settings: Users can configure network settings, such as IP addresses, DNS, and port forwarding, to ensure proper connectivity. They can also manage user accounts, system settings, and firmware updates through the web interface.
    8. Mobile access: The web interface is responsive and can be accessed from various devices, including smartphones and tablets. This allows users to monitor and manage their surveillance system remotely.
    9. Event and log management: The interface provides event and log management features, allowing users to view and analyze system events, alarms, and logs. This helps in troubleshooting and maintaining the surveillance system.
    10. Integration and compatibility: The web interface is compatible with various Uniview devices and can integrate with other security systems or third-party software for enhanced functionality and interoperability.

    Overall, the NAS Uniview VS-R5348D-C2V@AI web interface offers a comprehensive set of features and functionalities for efficient surveillance system management.

  • How does the AI web interface of NAS Uniview VS-R5348D-C2V enhance the surveillance and security capabilities of the system?

    The AI web interface of NAS Uniview VS-R5348D-C2V enhances the surveillance and security capabilities of the system in several ways:

    1. Intelligent Video Analytics: The AI-powered interface enables advanced video analytics capabilities such as facial recognition, intrusion detection, object tracking, and people counting. These features enhance the system's ability to detect and identify potential threats or suspicious activities in real-time.
    2. Real-time Alerts and Notifications: The AI web interface can generate instant alerts and notifications based on predefined rules or events. This allows security personnel to take immediate action when any abnormal activity is detected, improving response time and overall security effectiveness.
    3. Smart Search and Retrieval: The AI-powered interface enables intelligent search and retrieval of video footage based on specific criteria like objects, people, or events. This makes it easier to locate and review relevant video recordings, saving time and effort during investigations.
    4. Behavior Analysis: The system can analyze and understand human behavior patterns, enabling it to identify unusual or abnormal activities. This helps in proactive threat detection and prevention, as the system can raise alerts when it detects behaviors that deviate from normal patterns.
    5. Integration with Other Security Systems: The AI web interface can integrate with other security systems like access control, alarms, and fire detection. This allows for a more comprehensive security solution, where different systems can work together and trigger actions based on the AI analytics.
    6. Enhanced Accuracy and Reduced False Alarms: The AI algorithms used in the web interface improve the accuracy of surveillance and reduce false alarms. By leveraging deep learning and computer vision techniques, the system can better distinguish between real threats and false triggers, minimizing unnecessary disruptions.

    Overall, the AI web interface of NAS Uniview VS-R5348D-C2V enhances surveillance and security capabilities by providing advanced analytics, real-time alerts, intelligent search, behavior analysis, integration with other systems, and improved accuracy. These features contribute to a more effective and proactive security system.

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