How to recover data from QNAP QVP-41B 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 QVP-41B

QNAP QVP-41B NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from QVP-41B.

How to recover data from NAS QNAP QVP-41B

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.

Are there any known compatibility issues or limitations when connecting NAS QNAP QVP-41B devices to specific switches or routers?

There are no specific compatibility issues or limitations reported when connecting NAS QNAP QVP-41B devices to switches or routers. These devices are designed to work with standard networking equipment and protocols, so they should be compatible with most switches and routers available in the market.

However, it is always recommended to check the compatibility list provided by QNAP for their NAS devices to ensure that the specific switch or router model you are using is officially supported. This can help avoid any potential issues or limitations that may arise due to hardware or software compatibility.

Additionally, it is important to ensure that the switch or router you are using supports the required networking protocols and features for the NAS device, such as Gigabit Ethernet, VLAN support, and link aggregation, if needed.

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

Although NAS QVP-41B 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 QVP-41B. 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

QVP-41B has 4 HDD slots, and it supports the following array types:

  • 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 QVP-41B 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 QVP-41B, feel free to leave a comment!
  • Gale Sickler
    Gale Sickler 18.09.2023 05:51 #
    How to make backup for NAS QNAP QVP-41B?
    • Hetman Software
      Hetman Software 18.09.2023 05:59 #

      To make a backup for NAS QNAP QVP-41B, you can follow these steps:

      1. Connect an external USB drive or another NAS to the QNAP QVP-41B. Ensure that the external device has enough storage space to accommodate the backup.
      2. Log in to the QNAP QVP-41B's web interface using your admin credentials.
      3. Go to "Control Panel" and select "Backup/Restore" or "Backup Station."
      4. Click on "Backup" and choose "Remote NAS" or "External Device" as the backup destination.
      5. Select the files or folders you want to back up. You can choose specific folders or the entire NAS.
      6. Configure the backup settings, such as backup schedule, backup type (full, incremental, or differential), and retention policy.
      7. Specify the destination folder on the external device or remote NAS where the backup will be stored.
      8. Set up any additional options or encryption settings, if required.
      9. Review the backup settings and click on "Apply" or "Start Backup" to initiate the backup process.
      10. Monitor the backup progress, and once completed, verify the backup files on the external device or remote NAS.

      It is recommended to regularly test the backup by restoring a few files or folders to ensure the backup integrity. Additionally, consider using off-site or cloud-based backup solutions for added protection against physical damage or theft.

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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

  • How does the NAS QNAP QVP-41B serve as a reliable backup solution for web hosting?

    The NAS QNAP QVP-41B can serve as a reliable backup solution for web hosting in the following ways:

    1. Data Storage: The NAS provides a large storage capacity, allowing you to store and backup your website's data, files, and databases. It offers multiple hard drive bays, enabling you to expand storage as your backup needs grow.
    2. RAID Configuration: The QNAP QVP-41B supports various RAID configurations, such as RAID 1, 5, 6, or 10, which provide data redundancy and protection against drive failures. This ensures that your backup data remains intact even if a hard drive fails.
    3. Automated Backup: The NAS offers built-in backup features, including scheduled backups, incremental backups, and real-time synchronization. You can set up automatic backups to run at specific intervals, ensuring that your web hosting data is regularly backed up without manual intervention.
    4. Remote Backup: The QNAP QVP-41B supports remote backup options, allowing you to back up your web hosting data to an off-site location or cloud storage. This ensures that your backups are safe from physical damage or disasters that may affect the NAS itself.
    5. Snapshot Technology: The NAS supports snapshot technology, which captures the state of your data at a specific point in time. This feature enables you to quickly restore your website to a previous state if any data corruption or accidental changes occur.
    6. Data Deduplication and Compression: The QNAP QVP-41B employs data deduplication and compression techniques to optimize storage space. This means that only unique data is stored, reducing the amount of storage required for backups. It also helps in faster backup and restoration processes.
    7. Scalability: The NAS is scalable, allowing you to add more storage capacity or upgrade to higher-performance models as your backup requirements increase. This ensures that your backup solution can grow with your web hosting needs.

    Overall, the QNAP QVP-41B provides a reliable backup solution for web hosting by offering ample storage, data redundancy, automated backups, remote backup options, snapshot technology, and scalability.

  • What are the key features and capabilities of the NAS QNAP QVP-41B that make it suitable for web hosting backup?

    The QNAP QVP-41B is a network-attached storage (NAS) device that offers several key features and capabilities making it suitable for web hosting backup:

    1. High storage capacity: The QVP-41B supports up to four 3.5-inch SATA hard drives, allowing for a significant amount of storage space to accommodate web hosting backup needs. It supports various RAID configurations for data redundancy and protection.
    2. Scalability: The NAS supports expansion units, allowing for additional drive bays to be added to increase storage capacity as required. This scalability ensures that the NAS can accommodate growing backup requirements for web hosting.
    3. High-speed data transfer: The device supports high-speed connectivity options such as Gigabit Ethernet and USB 3.0 ports, enabling fast data transfer between the NAS and web hosting servers. This ensures efficient backup operations, minimizing downtime.
    4. Backup software compatibility: The QVP-41B is compatible with various backup software solutions commonly used in web hosting environments. It supports features like scheduled backups, incremental backups, and versioning, ensuring data integrity and efficient backup management.
    5. Snapshot and version control: The NAS supports snapshot technology, allowing you to take point-in-time snapshots of your web hosting data. This feature enables quick recovery in case of accidental data loss or corruption. Additionally, version control capabilities enable easy retrieval of previous versions of files.
    6. Remote access and collaboration: The NAS supports remote access, allowing web hosting administrators to access and manage backups from anywhere. It also provides collaboration features, enabling multiple users to access and work on the backup data simultaneously.
    7. Data protection and security: The QVP-41B offers various security features like AES 256-bit encryption, SSL/TLS support, and firewall protection. These ensure the confidentiality and integrity of the backed-up web hosting data.
    8. Disaster recovery options: The NAS supports various disaster recovery options, including remote replication, cloud backup, and backup to external devices. These options provide additional layers of redundancy and protection for web hosting backup data.

    Overall, the QNAP QVP-41B combines high storage capacity, scalability, fast data transfer, backup software compatibility, snapshot capabilities, remote access, and robust security features, making it a suitable choice for web hosting backup needs.

  • Can the NAS QNAP QVP-41B seamlessly integrate with popular web hosting platforms and provide efficient backup and recovery options?

    The NAS QNAP QVP-41B is a video surveillance server designed specifically for video surveillance applications. It is not specifically designed for web hosting platforms or backup and recovery options. Therefore, it may not seamlessly integrate with popular web hosting platforms or provide efficient backup and recovery options for general web hosting purposes.

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