How to recover data from QNAP TVS-871U-RP 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 TVS-871U-RP

QNAP TVS-871U-RP NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from TVS-871U-RP.

How to recover data from NAS QNAP TVS-871U-RP

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 regular data integrity checks help prevent data loss in NAS QNAP TVS-871U-RP devices?

Yes, regular data integrity checks can help prevent data loss in NAS QNAP TVS-871U-RP devices. These checks typically involve verifying the integrity of the data stored on the device by comparing it to a known checksum or hash value. If any discrepancies are found, it can indicate data corruption or loss.

By performing regular data integrity checks, you can identify and address any potential issues early on, minimizing the risk of data loss. Additionally, some NAS devices, including QNAP TVS-871U-RP, offer features like RAID (Redundant Array of Independent Disks) which provide data redundancy and fault tolerance to further protect against data loss.

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

Although NAS TVS-871U-RP 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 TVS-871U-RP. 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

TVS-871U-RP 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 TVS-871U-RP 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 TVS-871U-RP, feel free to leave a comment!
  • Archibald Robinson
    Archibald Robinson 16.09.2023 21:42 #
    Can data recovery from a NAS QNAP TVS-871U-RP device be done if the device is not responding or freezing frequently?
    • Hetman Software
      Hetman Software 16.09.2023 23:00 #

      Data recovery from a NAS QNAP TVS-871U-RP device can still be possible even if the device is not responding or freezing frequently. However, it may require professional assistance and specialized data recovery tools.

      Here are a few steps you can try before seeking professional help:

      1. Power cycle: Disconnect the power supply from the NAS device, wait for a few minutes, and then reconnect it. This can sometimes resolve temporary freezing issues.
      2. Check network connectivity: Ensure that the NAS device is properly connected to the network and that there are no network-related issues causing the freezing or unresponsiveness.
      3. Update firmware: Check if there are any firmware updates available for your QNAP NAS device. Updating the firmware may fix any known issues that could be causing the freezing problem.
      4. Hardware check: If the freezing issue persists, it could be due to a hardware problem. Check if all the hardware components (such as hard drives, RAM, power supply) are properly seated and functioning correctly. If any component is faulty, it may need to be replaced.

      If none of these steps resolve the issue, it is recommended to contact a professional data recovery service provider who specializes in NAS devices. They will have the expertise and tools necessary to recover data from a non-responsive or frequently freezing NAS device.

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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

  • Can the QNAP TVS-871U-RP NAS support iTunes media server functionality?

    Yes, the QNAP TVS-871U-RP NAS supports iTunes media server functionality. It can act as an iTunes server, allowing you to stream and share your media library with iTunes clients on your network.

  • What are the steps to set up and configure iTunes support on the QNAP TVS-871U-RP NAS?

    To set up and configure iTunes support on the QNAP TVS-871U-RP NAS, you can follow these steps:

    1. Connect to your QNAP NAS using a web browser by entering the NAS IP address in the address bar.
    2. Login to the NAS using your administrator credentials.
    3. Once logged in, go to the "App Center" on the QNAP NAS.
    4. In the "App Center," search for "iTunes Server" and click on the "Install" button to install the iTunes Server app.
    5. After the installation is complete, go to the "Control Panel" on the QNAP NAS.
    6. In the "Control Panel," click on "Multimedia" and then select "iTunes Server."
    7. In the iTunes Server settings, enable the "Enable iTunes Server" option.
    8. Set the "iTunes Library Name" to a name of your choice. This will be the name displayed in iTunes on your devices.
    9. Choose the folders or directories on your QNAP NAS that you want to make available to iTunes. You can select specific folders or choose to share the entire NAS.
    10. Set the "Publish" option to "Automatically publish new files and tracks."
    11. Optionally, you can set a password for the iTunes server to restrict access.
    12. Click on "Apply" to save the settings.
    13. Open iTunes on your computer or device.
    14. In iTunes, go to the "Preferences" menu.
    15. In the "Preferences" menu, click on the "Advanced" tab.
    16. Check the box that says "Share iTunes Library XML with other applications."
    17. Click on "OK" to save the settings.
    18. In iTunes, you should now see the QNAP NAS listed under "Shared" in the sidebar.
    19. You can now access and stream your media files from the QNAP NAS using iTunes on your devices.

    Note: Make sure your media files are in a compatible format supported by iTunes (e.g., MP3, AAC, AIFF, WAV, etc.) and are stored in the folders you have configured in the iTunes Server settings.

  • Are there any limitations or compatibility issues when using iTunes with the QNAP TVS-871U-RP NAS?

    There may be some limitations or compatibility issues when using iTunes with the QNAP TVS-871U-RP NAS. Here are a few considerations:

    1. iTunes Server Version: The QNAP NAS supports iTunes Server, but the compatibility may depend on the version of iTunes you are using. Ensure that your iTunes version is compatible with the NAS device.
    2. NAS Firmware: Ensure that the firmware on your QNAP NAS is up to date. Sometimes, compatibility issues can be resolved by updating the NAS firmware to the latest version.
    3. File Formats: iTunes has specific requirements for supported file formats. Make sure that your media files stored on the NAS are in a compatible format (such as MP3, AAC, or ALAC) for iTunes to recognize and play them.
    4. NAS Performance: The performance of the NAS can impact the experience of using iTunes. Ensure that your NAS has sufficient processing power and memory to handle the iTunes server functions, especially if you have a large library of media files.
    5. Network Speed: To stream media from the NAS to iTunes, a fast and stable network connection is important. Make sure that your network infrastructure can support the required bandwidth for streaming media without interruptions.

    It is recommended to refer to the QNAP documentation, user forums, or contact QNAP support for specific information on compatibility and any known limitations when using iTunes with the TVS-871U-RP NAS.

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