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

QNAP VS-8148 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-8148 Pro+.

How to recover data from NAS QNAP VS-8148 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.

Can improper handling or maintenance of NAS QNAP VS-8148 Pro+ device hardware lead to data loss?

Yes, improper handling or maintenance of NAS QNAP VS-8148 Pro+ device hardware can potentially lead to data loss. Mishandling the device, such as dropping it or subjecting it to physical damage, can cause the hard drives or other components to fail, resulting in data loss.

Additionally, inadequate maintenance practices, such as not regularly updating firmware, not performing regular backups, or not properly configuring RAID settings, can also increase the risk of data loss. It is important to follow the manufacturer's guidelines for handling and maintaining the device to minimize the chances of data loss.

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

Although NAS VS-8148 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-8148 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-8148 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-8148 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-8148 Pro+, feel free to leave a comment!
  • Quincy Beverly
    Quincy Beverly 16.09.2023 07:48 #
    What are the costs associated with data recovery from a NAS QNAP VS-8148 Pro+ device?
    • Hetman Software
      Hetman Software 16.09.2023 09:00 #

      The costs associated with data recovery from a NAS QNAP VS-8148 Pro+ device can vary depending on several factors, including the severity of the data loss, the complexity of the recovery process, and the service provider you choose. Here are some potential costs to consider:

      1. Evaluation Fee: Many data recovery service providers charge an evaluation fee to assess the extent of the data loss and determine the feasibility of recovery. This fee can range from $50 to $200.
      2. Recovery Service Fee: The actual data recovery service can be quite expensive, especially if the data loss is severe or requires specialized techniques. The cost can range from a few hundred dollars to several thousand dollars, depending on the complexity of the recovery process.
      3. Parts and Replacement Costs: In some cases, if the NAS device or its components need to be repaired or replaced, there may be additional costs involved. This can include the cost of new hard drives, circuit boards, or other components.
      4. Expedited or Emergency Service Fees: If you need the data recovery process to be expedited or require emergency service, some providers may charge additional fees for prioritizing your case. These fees can vary but are typically higher than standard service fees.
      5. Shipping and Handling: If you need to ship your NAS device to a data recovery service provider, you may incur shipping and handling costs. These costs depend on the shipping method, distance, and insurance coverage.

      It is important to note that these costs are estimates and can vary significantly based on the specific circumstances of your data loss and the service provider you choose. It is advisable to contact multiple data recovery service providers to get a detailed quote tailored to your situation.

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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-8148 Pro+ for surveillance systems?

    The NAS QNAP VS-8148 Pro+ is a powerful network-attached storage device specifically designed for surveillance systems. Some of its key features and benefits include:

    1. High storage capacity: The VS-8148 Pro+ supports up to 48 hard drives, allowing for massive storage capacity to accommodate a large number of surveillance cameras and video footage.
    2. Advanced video management: It offers comprehensive video management features, including real-time monitoring, recording, playback, and event management. It supports various video formats and resolutions for flexible surveillance deployment.
    3. Intelligent video analytics: The NAS supports advanced video analytics, such as motion detection, object recognition, and people counting. These analytics features enhance security and enable proactive monitoring and alerting.
    4. Centralized management: With the QVR Pro surveillance software, the NAS allows for centralized management of multiple cameras and surveillance systems. It provides a user-friendly interface to easily configure and control the surveillance environment.
    5. High-performance hardware: The VS-8148 Pro+ is equipped with a powerful Intel Xeon processor and ample memory, ensuring smooth video processing and handling of multiple camera streams simultaneously.
    6. Data protection and backup: The NAS offers various data protection mechanisms, including RAID configurations, hot-swappable drive bays, and snapshot technology. It also supports backup and synchronization to external storage devices or cloud services, ensuring data integrity and redundancy.
    7. Scalability and flexibility: The NAS is highly scalable, allowing for easy expansion of storage capacity as surveillance needs grow. It also supports various connectivity options, including network protocols, USB ports, and expansion slots, providing flexibility in integration with other surveillance devices and systems.
    8. Energy-efficient design: The VS-8148 Pro+ incorporates energy-saving technologies, such as Wake-on-LAN, scheduled power on/off, and hard drive sleep mode. This helps reduce power consumption and operating costs.

    Overall, the NAS QNAP VS-8148 Pro+ offers a robust and feature-rich solution for surveillance systems, providing high storage capacity, advanced video management, intelligent analytics, centralized management, data protection, scalability, and energy efficiency.

  • How does the NAS QNAP VS-8148 Pro+ compare to other similar surveillance system solutions in terms of performance and functionality?

    The NAS QNAP VS-8148 Pro+ is a high-end surveillance system solution that offers advanced performance and functionality. Here are some key points to consider when comparing it to other similar solutions:

    1. Performance: The QNAP VS-8148 Pro+ is equipped with a powerful Intel Core i3 processor, which provides fast and efficient processing power for handling multiple surveillance tasks simultaneously. It also supports up to 48 IP cameras, allowing for extensive coverage and monitoring.
    2. Storage Capacity: This QNAP model supports up to 48 hard drives, providing a vast storage capacity for storing surveillance footage. It also supports various RAID configurations, ensuring data redundancy and protection.
    3. Video Management Software (VMS): QNAP offers a comprehensive VMS called QVR Pro, which provides advanced features for managing and monitoring IP cameras. It supports features like real-time monitoring, playback, and intelligent video analytics.
    4. Scalability: The QNAP VS-8148 Pro+ is highly scalable, allowing for easy expansion of storage capacity and camera support as per the user's requirements. This makes it suitable for both small-scale and large-scale surveillance deployments.
    5. Connectivity and Integration: The QNAP VS-8148 Pro+ offers multiple connectivity options, including HDMI, USB, and network interfaces. It also supports integration with other surveillance systems, access control systems, and alarm systems, enabling a comprehensive security solution.
    6. User-friendly Interface: QNAP NAS devices are known for their user-friendly interface, making it easy for users to set up and manage the surveillance system. The intuitive interface allows for quick access to various settings and features.
    7. Reliability and Security: QNAP NAS devices are built with reliability and security in mind. They offer features like RAID protection, data encryption, and backup options to ensure data integrity and protection against system failures or data breaches.

    Overall, the NAS QNAP VS-8148 Pro+ stands out in terms of its performance, scalability, and advanced features like the QVR Pro VMS. It offers a robust surveillance solution for users who require extensive storage capacity, high-quality video management, and reliable performance.

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