How to recover data from QNAP VS-8148U-RP Pro+ 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 QNAP VS-8148U-RP Pro+

QNAP VS-8148U-RP Pro+ 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-8148U-RP Pro+.

How to recover data from NAS QNAP VS-8148U-RP Pro+

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 QNAP also introduce some modifications to this process, and that is why data can be written to hard disk in a wide variety of ways.

What are the common causes of data loss in NAS QNAP VS-8148U-RP Pro+ devices?

The common causes of data loss in NAS QNAP VS-8148U-RP Pro+ devices can include:

  1. Hardware failure: This can include issues with the hard drives, power supply, or other components of the NAS device. If any of these components fail, it can result in data loss.
  2. Human error: Accidental deletion or formatting of files or folders can lead to data loss. It is important to be cautious when managing files on the NAS device to avoid such mistakes.
  3. Software or firmware issues: Problems with the operating system or firmware of the NAS device can cause data loss. This can include software bugs, compatibility issues, or corruption of the system files.
  4. Power outages or surges: Sudden power failures or voltage fluctuations can result in data loss if the NAS device is not properly protected by a UPS (Uninterruptible Power Supply).
  5. Virus or malware infections: If the NAS device gets infected with a virus or malware, it can lead to data corruption or loss. It is important to have proper security measures in place to protect the device from such threats.
  6. Natural disasters or physical damage: Fire, flood, or physical damage to the NAS device can result in complete data loss if the storage media gets damaged beyond recovery.

To mitigate the risk of data loss, it is recommended to regularly backup the data stored on the NAS device to an external storage or cloud-based backup solution.

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

Although NAS VS-8148U-RP Pro+ 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 QNAP VS-8148U-RP Pro+. 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 QNAP

How to recover data from a QNAP

VS-8148U-RP Pro+ has 8 HDD slots, and it supports the following array types:

  • RAID 50;
  • RAID 60;
  • RAID 6;
  • RAID 5;
  • RAID 10;
  • RAID 0;
  • RAID 1;
  • JBOD;

NAS supports:

  • ZFS;
  • EXT4;
  • EXT3;
  • exFAT;
  • FAT32 (External Disk Only);
  • NTFS (External Disk Only);
  • HFS+ (External Disk Read Only);

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 QNAP VS-8148U-RP Pro+ network-attached storage keeps QTS (QuTS hero) 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-8148U-RP Pro+, feel free to leave a comment!
  • Nate Jex-Blake
    Nate Jex-Blake 16.09.2023 09:56 #
    Will data recovery from a NAS QNAP VS-8148U-RP Pro+ device affect the existing data?
    • Hetman Software
      Hetman Software 16.09.2023 10:00 #

      Data recovery from a NAS device should not affect the existing data on the device if it is done correctly. However, it is always recommended to take precautions and avoid any actions that may potentially overwrite or modify the existing data during the recovery process. It is advisable to consult with a professional data recovery service or follow the instructions provided by the manufacturer to ensure the safety of your data.

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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 benefits of using the NAS QNAP VS-8148U-RP Pro+ as central storage?

    The key features and benefits of using the NAS QNAP VS-8148U-RP Pro+ as central storage are:

    1. High storage capacity: The NAS QNAP VS-8148U-RP Pro+ offers a large storage capacity, allowing you to store and manage a significant amount of data centrally.
    2. Redundant power supply: The device comes with a redundant power supply, ensuring continuous operation even in the event of a power failure.
    3. RAID support: The NAS supports various RAID configurations, providing data protection and increased performance.
    4. High-speed data transfer: With multiple Gigabit Ethernet ports and support for link aggregation, the NAS offers high-speed data transfer rates, allowing for efficient data access and sharing.
    5. Scalability: The device is highly scalable, allowing you to expand the storage capacity as your needs grow. It supports up to 8 hard drives and can be expanded further using expansion units.
    6. Advanced data protection: The NAS QNAP VS-8148U-RP Pro+ provides advanced data protection features like snapshot technology, which allows you to take point-in-time snapshots of your data for easy recovery in case of accidental deletion or data corruption.
    7. Virtualization support: The NAS is compatible with popular virtualization platforms like VMware, Citrix, and Microsoft Hyper-V, allowing you to integrate it seamlessly into your virtualized environment.
    8. Centralized management: The device comes with a user-friendly web-based interface that allows for easy management and configuration of the NAS and its features.
    9. Data backup and synchronization: The NAS supports various backup options, including remote replication, cloud backup, and synchronization with other devices, ensuring data redundancy and protection.
    10. Surveillance support: The NAS is equipped with surveillance features, allowing you to connect IP cameras and use it as a centralized surveillance station.

    Overall, the NAS QNAP VS-8148U-RP Pro+ offers a robust and feature-rich solution for central storage, providing high storage capacity, data protection, scalability, and advanced management capabilities.

  • How does the NAS QNAP VS-8148U-RP Pro+ compare to other central storage solutions in terms of performance, scalability, and reliability?

    The NAS QNAP VS-8148U-RP Pro+ is a high-end central storage solution that offers excellent performance, scalability, and reliability. Here's how it compares to other similar solutions:

    1. Performance: The QNAP VS-8148U-RP Pro+ is equipped with a powerful Intel Xeon processor and up to 32GB of RAM, ensuring fast and efficient data processing. It also supports multiple RAID configurations, including RAID 0, 1, 5, 6, and 10, allowing for optimized data storage and retrieval speeds. Overall, it offers excellent performance for demanding applications and high data throughput.
    2. Scalability: The QNAP VS-8148U-RP Pro+ is highly scalable, supporting up to 48 hard drives with the use of expansion units. This allows for a massive storage capacity, making it suitable for businesses with growing data storage needs. Additionally, it supports various storage expansion options, such as SAS and SATA drives, giving users flexibility in choosing the right storage solution for their requirements.
    3. Reliability: QNAP is known for its reliable and robust network-attached storage solutions, and the VS-8148U-RP Pro+ is no exception. It features redundant power supplies and hot-swappable hard drives, ensuring continuous operation even in the event of hardware failures. It also supports RAID configurations with data redundancy, protecting against data loss in case of drive failures. Moreover, QNAP provides regular firmware updates and has a strong customer support system, further enhancing the reliability of their products.

    Overall, the QNAP VS-8148U-RP Pro+ offers excellent performance, scalability, and reliability compared to other central storage solutions. However, it's important to consider specific requirements and compare it with other options available in the market to determine the best fit for your organization.

  • What are some practical use cases or industries where the NAS QNAP VS-8148U-RP Pro+ excels as a central storage solution?

    The NAS QNAP VS-8148U-RP Pro+ is a high-capacity and high-performance storage solution that can excel in several practical use cases and industries. Some of these include:

    1. Surveillance and Security: The VS-8148U-RP Pro+ is designed for surveillance applications, with its support for up to 48 IP cameras and advanced video management features. It can handle large amounts of video data, provide real-time monitoring, and offer intelligent video analytics.
    2. Media and Entertainment: The NAS is suitable for media production companies, post-production houses, and broadcasting industries. Its high storage capacity and ability to handle multiple concurrent streams make it ideal for storing and streaming large media files, such as high-definition videos, audio files, and images.
    3. Architecture and Engineering: The VS-8148U-RP Pro+ can be used as a central storage solution for architecture and engineering firms. It can store and share large design files, CAD drawings, 3D models, and other project-related data. The NAS's high performance ensures quick access to files, enabling efficient collaboration among team members.
    4. Small and Medium-sized Businesses (SMBs): The NAS is suitable for SMBs that require a centralized storage solution for their data. It offers a large storage capacity, data protection features like RAID, and support for various file-sharing protocols. The NAS can also serve as a backup target for critical business data.
    5. Virtualization Environments: The VS-8148U-RP Pro+ is compatible with virtualization platforms like VMware, Citrix, and Microsoft Hyper-V. It can act as a central storage repository for virtual machines (VMs), providing fast and reliable access to VM data and enabling efficient VM management.
    6. Education and Research: The NAS can be utilized in educational institutions, research labs, and libraries to store and share large volumes of educational content, research data, and digital resources. Its high capacity and support for user access control make it suitable for managing and distributing educational materials.
    7. Healthcare: The NAS can be used in healthcare facilities for storing and managing medical imaging files, patient records, and other healthcare-related data. Its ability to handle large datasets and support for secure access control ensures the privacy and integrity of sensitive medical information.

    These are just a few examples of industries and use cases where the QNAP VS-8148U-RP Pro+ can excel as a central storage solution. Its high capacity, performance, and advanced features make it a versatile option for various storage-intensive applications.

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