How to recover data from QNAP TVS-882 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-882

QNAP TVS-882 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-882.

How to recover data from NAS QNAP TVS-882

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 recommended best practices for securely storing usernames and passwords on NAS QNAP TVS-882 devices?

Yes, there are several recommended best practices for securely storing usernames and passwords on NAS QNAP TVS-882 devices. Here are some of them:

  1. Enable Two-Factor Authentication (2FA): QNAP devices support 2FA, which adds an extra layer of security by requiring a second verification step, usually through a mobile app or SMS. Enable 2FA to protect your login credentials.
  2. Use Strong and Unique Passwords: Ensure that you use strong passwords that are difficult to guess. Avoid using common or easily guessable passwords. Additionally, use a unique password for your QNAP device and avoid reusing it for other accounts.
  3. Regularly Update Firmware: Keep your QNAP device's firmware up to date. Manufacturers release firmware updates to address security vulnerabilities and improve overall system security. Regularly check for updates and apply them promptly.
  4. Limit Access and Use User Groups: Create separate user accounts for each person who needs access to the NAS device. Assign appropriate access rights and permissions based on their roles. Utilize user groups to simplify the management of access rights.
  5. Enable Network Access Protection: QNAP devices provide network access protection features like IP blocking, which can help prevent unauthorized access attempts. Configure and enable these features to add an extra layer of security.
  6. Regularly Backup Data: Implement a regular backup strategy to ensure that your data is protected in case of any security breaches or hardware failures. Use QNAP's built-in backup features or third-party backup solutions to create backups regularly.
  7. Secure Remote Access: If you need remote access to your QNAP device, use secure protocols such as HTTPS or VPN (Virtual Private Network) to encrypt the connection and protect your login credentials from interception.
  8. Disable Unused Services: Disable any unnecessary services or features that you don't use on your QNAP device. Reducing the attack surface by disabling unused services can help minimize the risk of unauthorized access.
  9. Regularly Monitor and Audit: Monitor your QNAP device's logs and enable auditing features to detect any suspicious activities. Regularly review the logs and audit reports to identify potential security issues or unauthorized access attempts.
  10. Educate Users: Educate all users who have access to the QNAP device about best practices for password security, phishing attacks, and other common security threats. Promote a culture of security awareness and encourage users to report any suspicious activities.

Remember, implementing these best practices can significantly enhance the security of your QNAP TVS-882 device, but it's important to stay vigilant and keep up with the latest security recommendations from QNAP.

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

Although NAS TVS-882 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-882. 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-882 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-882 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-882, feel free to leave a comment!
  • Clifton McNair-Wilson
    Clifton McNair-Wilson 16.09.2023 19:44 #
    Are there any specific precautions that need to be taken while attempting data recovery from a NAS QNAP TVS-882 device?
    • Hetman Software
      Hetman Software 16.09.2023 20:59 #

      Yes, there are several precautions that need to be taken while attempting data recovery from a QNAP TVS-882 NAS device:

      1. Avoid further data writes: Do not write any new data to the NAS device as it may overwrite the existing data and make recovery more difficult.
      2. Disconnect from the network: Disconnect the NAS device from the network to prevent any automatic synchronization or updates that may modify the data.
      3. Power off properly: Shut down the NAS device properly using the manufacturer's recommended method to avoid any potential data corruption.
      4. Avoid DIY attempts: It is recommended to avoid DIY attempts at data recovery unless you have expertise in the field. Improper handling can lead to further data loss or damage to the device.
      5. Consult a professional data recovery service: If the data on the NAS device is critical and you are not confident in your own abilities, it is advisable to consult a professional data recovery service with experience in NAS devices. They have the necessary tools and expertise to handle such situations.

      Remember, data recovery from a NAS device can be complex, and it is always better to seek professional help to maximize the chances of successful recovery without further data loss.

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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 basic storage capacities and configurations available in the QNAP TVS-882 NAS?

    The QNAP TVS-882 NAS offers various storage capacities and configurations, including:

    1. Drive Bays: The TVS-882 NAS comes with 8 drive bays, allowing you to install up to 8 hard drives or SSDs for storage.
    2. Storage Capacity: The TVS-882 NAS supports both 3.5-inch and 2.5-inch SATA hard drives and SSDs. With 8 drive bays, you can achieve a maximum storage capacity of up to 128TB (8 x 16TB drives).
    3. RAID Configurations: The TVS-882 NAS supports multiple RAID configurations, including RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, RAID 50, and RAID 60. These configurations offer different levels of data protection, performance, and capacity.
    4. PCIe Expansion Slots: The TVS-882 NAS has three PCIe expansion slots, allowing you to install additional storage expansion cards for increased storage capacity or other add-on cards like 10GbE network cards, USB 3.1 cards, or graphics cards.
    5. M.2 SSD Slots: The TVS-882 NAS includes two M.2 SSD slots, providing high-speed storage acceleration and caching capabilities. You can install M.2 SATA or NVMe SSDs to boost overall system performance.

    Overall, the TVS-882 NAS offers flexible storage configurations and capacities to meet various storage needs, whether it's for personal or business use.

  • Can you explain the key features and functionalities of the QNAP TVS-882 NAS that make it suitable for small businesses?

    The QNAP TVS-882 NAS is a powerful and versatile network-attached storage solution designed specifically for small businesses. It offers several key features and functionalities that make it suitable for such environments. Here are some of its notable features:

    1. High-performance hardware: The TVS-882 is equipped with a powerful Intel processor, ample RAM, and multiple Gigabit Ethernet ports, allowing for fast and efficient data processing and transfer speeds.
    2. Scalability: The NAS supports both 2.5" and 3.5" SATA hard drives and SSDs, providing flexibility for storage expansion as the business grows. It also supports RAID configurations for data redundancy and protection.
    3. Virtualization support: The TVS-882 is compatible with popular virtualization platforms such as VMware, Citrix, and Microsoft Hyper-V. It can act as a cost-effective storage solution for virtual machines, allowing businesses to consolidate their IT infrastructure.
    4. Thunderbolt connectivity: The NAS features Thunderbolt 2 technology, enabling lightning-fast data transfer speeds and daisy-chaining multiple Thunderbolt devices. This makes it ideal for businesses working with large media files or requiring high-speed data access.
    5. Comprehensive backup solutions: QNAP provides various backup options, including local backup, remote replication, and cloud backup services. This ensures data protection and allows businesses to recover quickly in case of data loss or system failure.
    6. File sharing and collaboration: The TVS-882 supports multiple file-sharing protocols such as SMB/CIFS, AFP, and NFS, making it easy to share files across different platforms and devices. It also offers collaborative features like file versioning and synchronization, enhancing productivity in small business environments.
    7. Security and data protection: The NAS provides robust security features, including AES 256-bit encryption, IP blocking, two-step verification, and antivirus protection. It also supports Windows Active Directory (AD) integration for centralized user management and access control.
    8. Application ecosystem: QNAP's App Center offers a wide range of applications that can be installed on the TVS-882, such as productivity tools, media servers, surveillance systems, and more. This allows businesses to customize the NAS according to their specific needs.

    Overall, the QNAP TVS-882 NAS combines high-performance hardware, scalability, virtualization support, comprehensive backup solutions, file sharing capabilities, security features, and an extensive application ecosystem, making it a suitable and versatile storage solution for small businesses.

  • How does the QNAP TVS-882 NAS ensure data security and protection, and what backup options are available?

    The QNAP TVS-882 NAS provides several features to ensure data security and protection:

    1. RAID Protection: The TVS-882 supports various RAID configurations, including RAID 0, 1, 5, 6, 10, 50, and 60. RAID protects against data loss by distributing data across multiple drives, allowing for redundancy and recovery in case of a drive failure.
    2. Snapshot Technology: The NAS supports snapshot technology, which allows you to take point-in-time snapshots of your data. Snapshots capture the state of your files and folders at a specific moment, enabling easy recovery in case of accidental deletion or modification.
    3. AES 256-Bit Encryption: The TVS-882 supports AES 256-bit encryption, which ensures that your stored data is securely encrypted and protected from unauthorized access. Encryption is performed in real-time, and decryption requires the encryption password.
    4. Antivirus Protection: The NAS includes an integrated antivirus solution that scans files and folders for malware and viruses. It provides real-time protection and regularly updates virus definitions to ensure the latest threats are detected and prevented.
    5. Access Control: The TVS-882 allows you to set up user accounts and access permissions, ensuring that only authorized users can access specific files and folders. This helps protect against unauthorized access and data breaches.

    In terms of backup options, the TVS-882 NAS provides several options:

    1. RTRR (Real-Time Remote Replication): RTRR allows you to set up real-time or scheduled data replication to a remote QNAP NAS or an FTP server. This ensures that your data is continuously backed up and protected in case of a disaster.
    2. External Backup: The NAS has multiple USB 3.0 and USB-C ports, allowing you to connect external storage devices for backup purposes. You can manually copy or schedule backups to external drives for off-site storage.
    3. Cloud Backup: QNAP provides built-in support for various cloud backup services, including Amazon S3, Microsoft Azure, Google Cloud Storage, and more. You can configure the NAS to automatically back up selected files or folders to the cloud for additional data protection.
    4. Time Machine Support: If you are using Mac devices, the TVS-882 supports Apple's Time Machine backup feature. You can easily configure the NAS as a Time Machine target and back up your Macs' data wirelessly.

    These features and backup options offered by the QNAP TVS-882 NAS ensure data security, protection, and provide various methods for backing up your important files and folders.

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