How to recover data from QNAP VS-S2204 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-S2204 Pro+

QNAP VS-S2204 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-S2204 Pro+.

How to recover data from NAS QNAP VS-S2204 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.

Are there any guidelines for configuring security settings on NAS QNAP VS-S2204 Pro+ devices to prevent unauthorized access and potential data loss?

Yes, there are several guidelines for configuring security settings on QNAP VS-S2204 Pro+ devices to prevent unauthorized access and potential data loss. Here are some best practices:

  1. Change the default administrator password: Upon initial setup, change the default password for the administrator account to a strong and unique password. Avoid using common or easily guessable passwords.
  2. Enable two-factor authentication (2FA): QNAP supports 2FA, which adds an extra layer of security by requiring a second verification step, such as a code from a mobile app, when logging in. Enable 2FA to enhance security.
  3. Regularly update firmware: Keep the firmware of your QNAP device up to date by regularly checking for updates. Firmware updates often include security patches and bug fixes that can address vulnerabilities.
  4. Use strong user passwords: Create strong passwords for all user accounts on the NAS device. Use a combination of upper and lowercase letters, numbers, and special characters. Avoid using dictionary words or easily guessable information.
  5. Limit access privileges: Grant access privileges only to necessary users and limit access to specific folders or shares. Restrict access to sensitive data and use access control lists (ACLs) to manage permissions effectively.
  6. Enable network access restrictions: Utilize the built-in firewall and network access restrictions to control which IP addresses or networks can access the NAS device. Whitelist trusted IP addresses and block suspicious or unauthorized IP addresses.
  7. Regularly backup data: Implement a regular backup strategy to ensure that your data is protected. Consider using external storage or cloud backup services to store critical data off-site.
  8. Disable unnecessary services: Disable any unnecessary services or features that are not being used. This reduces the attack surface and minimizes potential vulnerabilities.
  9. Enable network encryption: Use encryption protocols like SSL/TLS to secure network connections to the NAS device. This prevents eavesdropping and unauthorized interception of data.
  10. Monitor and log activities: Enable logging and monitoring features on the NAS device to track any suspicious activities. Regularly review logs to identify potential security incidents or unauthorized access attempts.

It's important to note that these guidelines are not exhaustive, and it's always recommended to refer to the official documentation provided by QNAP for detailed instructions and the latest security recommendations specific to your device model.

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

Although NAS VS-S2204 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-S2204 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-S2204 Pro+ has 2 HDD slots, and it supports the following array types:

  • RAID 1;

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-S2204 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-S2204 Pro+, feel free to leave a comment!
  • Charlton Frankau
    Charlton Frankau 18.09.2023 13:45 #
    Can data recovery from a NAS QNAP VS-S2204 Pro+ device be done if the device is showing signs of hardware failure?
    • Hetman Software
      Hetman Software 18.09.2023 14:00 #

      Yes, data recovery from a NAS (Network Attached Storage) device like the QNAP VS-S2204 Pro+ can still be possible even if the device is showing signs of hardware failure. However, the success of the recovery depends on the extent of the hardware failure and the condition of the storage drives within the NAS.

      If the hardware failure is limited to certain components like the power supply or cooling fans, it may be possible to repair or replace those components to get the device working again. In such cases, the data recovery process can be relatively straightforward, and you may be able to access your data once the device is operational.

      However, if the hardware failure involves the storage drives themselves, it can become more challenging. In such cases, it is recommended to contact a professional data recovery service provider who specializes in NAS devices. They have the expertise, tools, and cleanroom facilities required to recover data from faulty storage drives.

      It is important to note that attempting DIY repairs or recovery methods on a faulty NAS device can potentially worsen the situation and lead to permanent data loss. Therefore, it is generally advised to seek professional assistance for data recovery from a NAS device experiencing hardware failure.

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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 advantages and disadvantages of using the NAS QNAP VS-S2204 Pro+ as a VPN server compared to other VPN server options?

    Advantages of using the NAS QNAP VS-S2204 Pro+ as a VPN server:

    1. Integrated solution: The QNAP VS-S2204 Pro+ is an all-in-one solution that combines NAS storage with VPN server capabilities. This eliminates the need for separate hardware or software for VPN functionality.
    2. Easy setup and management: QNAP NAS devices have a user-friendly interface and provide easy setup and management options for VPN services. The QVPN app allows users to configure and customize VPN settings without advanced technical knowledge.
    3. Security features: QNAP NAS devices offer advanced security features like encryption, firewall protection, and support for various VPN protocols (OpenVPN, PPTP, L2TP/IPsec). These features ensure secure data transmission and protect against unauthorized access.
    4. Scalability: The QNAP VS-S2204 Pro+ supports multiple VPN connections simultaneously, making it suitable for small to medium-sized businesses or households with multiple users. It can handle a significant number of VPN clients without compromising performance.

    Disadvantages of using the NAS QNAP VS-S2204 Pro+ as a VPN server:

    1. Limited hardware resources: While the QNAP VS-S2204 Pro+ is a powerful NAS device, it may not be as capable as dedicated VPN servers in terms of hardware resources like CPU power or memory. This can impact the overall VPN performance, especially when handling a large number of concurrent connections.
    2. Limited VPN protocol support: While QNAP NAS devices support popular VPN protocols like OpenVPN, PPTP, and L2TP/IPsec, they may not offer support for more advanced or less common protocols. This can limit compatibility with certain devices or specific VPN requirements.
    3. Single point of failure: When using a NAS device as a VPN server, it becomes a single point of failure. If the NAS encounters any hardware or software issues, it can disrupt the VPN service for all connected clients.
    4. Resource allocation: Running a VPN server on a NAS device means sharing its resources between VPN services and other NAS functionalities like file storage, media streaming, or surveillance. Heavy VPN usage may impact the overall performance of these other functions.

    It's important to consider these advantages and disadvantages when choosing the NAS QNAP VS-S2204 Pro+ as a VPN server, and compare it with other dedicated VPN server options to ensure it meets your specific requirements.

  • How does the NAS QNAP VS-S2204 Pro+ perform as a VPN server in terms of speed, security, and reliability?

    The QNAP VS-S2204 Pro+ is a network-attached storage (NAS) device that can function as a VPN server. Its performance as a VPN server in terms of speed, security, and reliability can vary based on several factors:

    1. Speed: The VPN server speed depends on the hardware capabilities of the NAS device, such as the CPU, memory, and network interface. The VS-S2204 Pro+ is equipped with a powerful Intel processor and has sufficient memory, which should provide good VPN performance. However, the actual speed can also be influenced by the internet connection speed on both the server and client sides.
    2. Security: The QNAP VS-S2204 Pro+ supports various VPN protocols like OpenVPN, PPTP, and L2TP/IPSec, which offer different levels of security. OpenVPN is generally considered the most secure option due to its robust encryption and authentication methods. The NAS device also provides features like firewall settings and access control to enhance security.
    3. Reliability: The reliability of the VPN server largely depends on the stability of the NAS device and its software. QNAP is a reputable brand known for producing reliable NAS devices, and the VS-S2204 Pro+ is designed for business use, which typically demands higher reliability. Regular firmware updates from QNAP can also address any potential security vulnerabilities and improve overall reliability.

    It's important to note that the performance of a VPN server can also be influenced by the network infrastructure, the number of concurrent connections, and the specific configuration settings. To ensure optimal performance, it is recommended to consult the QNAP documentation, user forums, or reach out to QNAP support for any specific configuration or troubleshooting requirements.

  • What features and capabilities does the NAS QNAP VS-S2204 Pro+ offer specifically for VPN server functionality, and how does it compare to other NAS devices in this regard?

    The QNAP VS-S2204 Pro+ is a network-attached storage (NAS) device that offers VPN server functionality. It provides several features and capabilities specifically for VPN server functionality, including:

    1. Integrated VPN Server: The VS-S2204 Pro+ has a built-in VPN server that allows users to create a secure connection to their NAS from remote locations. It supports various VPN protocols such as PPTP, L2TP/IPsec, and OpenVPN.
    2. Secure Data Transmission: The VPN server functionality ensures encrypted data transmission between the NAS and remote devices, providing a secure connection for accessing files and resources.
    3. Client Management: The NAS device allows administrators to manage VPN clients, set access permissions, and monitor client connections. This feature enables efficient control and monitoring of VPN access to the NAS.
    4. Multiple VPN Connections: The VS-S2204 Pro+ supports multiple VPN connections simultaneously, allowing multiple users or devices to connect securely to the NAS at the same time.
    5. Advanced Authentication Options: It offers various authentication methods, including local user accounts, Windows Active Directory, LDAP directory services, and RADIUS server. These options provide flexibility in user authentication for VPN connections.

    When compared to other NAS devices, the VS-S2204 Pro+ stands out in terms of its VPN server functionality due to its comprehensive set of features and capabilities. Many NAS devices offer basic VPN server functionality, but the VS-S2204 Pro+ provides advanced features like support for multiple VPN protocols, client management, and authentication options. These features make it a versatile choice for businesses or individuals requiring secure remote access to their NAS.

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