What to Do When Your NAS QNAP TVS-EC2480U-SAS-RP R2 RAID Array Fails: Steps to Recovery When It Breaks

When your ⭐ NAS RAID array breaks, use these steps to recover your data and restore system functionality.

What to Do When Your NAS QNAP TVS-EC2480U-SAS-RP R2 RAID Array Fails: Steps to Recovery When It Breaks

QNAP TVS-EC2480U-SAS-RP R2 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-EC2480U-SAS-RP R2.

What to Do When Your NAS QNAP TVS-EC2480U-SAS-RP R2 RAID Array Fails: Steps to Recovery When It Breaks

RAID Recovery™ 2.6
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 network configuration or firewall settings result in data loss on NAS QNAP TVS-EC2480U-SAS-RP R2 devices?

Yes, improper network configuration or firewall settings can potentially result in data loss on NAS QNAP TVS-EC2480U-SAS-RP R2 devices.

If the network configuration is not properly set up, it can lead to connectivity issues between the NAS device and other devices on the network. This can result in data transfer errors or interruptions, which may ultimately lead to data loss.

Similarly, if the firewall settings are not properly configured, it can block necessary network traffic and prevent proper communication between the NAS device and other devices or services. This can also result in data loss or inaccessibility of data stored on the NAS.

To mitigate the risk of data loss, it is important to ensure that the network configuration is correctly set up, and the firewall settings are properly configured to allow necessary network traffic for the NAS device. It is also recommended to regularly backup the data stored on the NAS to an external storage device or a cloud service to prevent permanent data loss in case of any unforeseen issues.

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

Although NAS TVS-EC2480U-SAS-RP R2 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-EC2480U-SAS-RP R2. 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-EC2480U-SAS-RP R2 has 24 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-EC2480U-SAS-RP R2 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-EC2480U-SAS-RP R2, feel free to leave a comment!
  • Kermit Hector
    Kermit Hector 15.09.2023 00:54 #
    Can data recovery from a NAS QNAP TVS-EC2480U-SAS-RP R2 device be done if the device is not responding or freezing frequently?
    • Hetman Software
      Hetman Software 15.09.2023 02:00 #

      Yes, data recovery from a NAS QNAP TVS-EC2480U-SAS-RP R2 device can still be possible even if the device is not responding or freezing frequently. Here are a few steps you can try:

      1. Restart the device: Sometimes, a simple restart can fix temporary issues. Turn off the NAS, unplug the power cord, wait for a few minutes, and then plug it back in and power it on.
      2. Check network connections: Ensure that the network cables are securely connected and there are no issues with the network switch or router. Try connecting the NAS directly to a computer to eliminate any network-related problems.
      3. Check hard drives: If the NAS freezes frequently, it could be due to a faulty or failing hard drive. Check the NAS management interface for any disk errors or warnings. If possible, remove and reinsert the hard drives or try replacing them one by one to identify any problematic drive.
      4. Update firmware: Make sure the NAS firmware is up to date. Check the QNAP website for any available firmware updates and follow the instructions to update the device.
      5. Seek professional help: If none of the above steps work, it is recommended to contact a professional data recovery service. They have specialized tools and expertise to recover data from unresponsive or failing NAS devices. Be prepared for the possibility of data recovery being a complex and costly process.

      Remember to always have regular backups of your important data to avoid such situations in the future.

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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 xaker.ru, 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 benefits of regularly updating the software on the QNAP TVS-EC2480U-SAS-RP R2 NAS?

    Regularly updating the software on the QNAP TVS-EC2480U-SAS-RP R2 NAS offers several benefits, including:

    1. Security: Software updates often include important security patches and bug fixes that can protect your NAS from potential vulnerabilities and threats. By keeping the software up to date, you reduce the risk of unauthorized access, data breaches, and other security issues.
    2. Stability and Performance: Updates can improve the stability and performance of your NAS. They may include optimizations, bug fixes, and enhancements that can enhance the overall functionality and reliability of the system. Regular updates can ensure that your NAS operates smoothly and efficiently.
    3. Compatibility: Software updates may introduce compatibility improvements, ensuring that your NAS remains compatible with the latest hardware, applications, and protocols. This can be particularly important if you are using your NAS in a mixed or evolving IT environment.
    4. New Features: Updates often bring new features, functionalities, and improvements to the NAS. By staying up to date, you can take advantage of these new features, which can enhance your productivity, data management, and overall NAS experience.
    5. Vendor Support: Regularly updating your NAS software ensures that you remain eligible for vendor support. If you encounter any issues or require assistance, vendors typically require you to be running the latest software version before providing support or troubleshooting.
    6. Bug Fixes: Software updates address known issues and bugs reported by users. By installing updates, you can benefit from these bug fixes, resolving potential problems and improving the overall user experience.

    Overall, regularly updating the software on your QNAP TVS-EC2480U-SAS-RP R2 NAS is crucial for maintaining security, stability, compatibility, and performance, while also taking advantage of new features and vendor support.

  • How can I check for and install software updates on the QNAP TVS-EC2480U-SAS-RP R2 NAS?

    To check for and install software updates on the QNAP TVS-EC2480U-SAS-RP R2 NAS, you can follow these steps:

    1. Log in to the QNAP NAS web interface by entering the NAS IP address in a web browser.
    2. Enter your username and password to log in to the NAS administration interface.
    3. Once logged in, navigate to "Control Panel" and click on "System Settings."
    4. In the "System Settings" menu, click on "Firmware Update."
    5. On the "Firmware Update" page, click on the "Check for Update" button to check for the latest firmware updates available for your NAS.
    6. If any updates are found, click on the "Update" button next to the available update to start the installation process.
    7. Follow the on-screen instructions to complete the firmware update. It is recommended to back up your data before performing the update.
    8. After the update is complete, the NAS will restart, and you can log in again to the web interface.

    Note: It is important to regularly check for firmware updates to ensure that your NAS has the latest security patches and features.

  • Are there any specific precautions or best practices to follow when performing a software update on the QNAP TVS-EC2480U-SAS-RP R2 NAS?

    Yes, there are several precautions and best practices to follow when performing a software update on the QNAP TVS-EC2480U-SAS-RP R2 NAS. Here are some important points to consider:

    1. Backup your data: Before initiating any software update, it is crucial to create a backup of all your important data. Although software updates are generally safe, unexpected issues can sometimes occur during the update process, leading to data loss or corruption. Having a backup ensures that you can restore your data if anything goes wrong.
    2. Read release notes: Prior to updating the software, carefully read the release notes provided by QNAP. The release notes contain important information about the update, including any known issues, bug fixes, and new features. This will help you understand what changes to expect and any potential impact on your system.
    3. Check compatibility: Ensure that the software update is compatible with your specific NAS model (TVS-EC2480U-SAS-RP R2). QNAP usually provides firmware updates specifically tailored to different NAS models, and using an incompatible update can cause issues or even damage your device.
    4. Check system requirements: Verify that your NAS meets the minimum system requirements for the software update. Inadequate resources or outdated hardware may result in poor performance or compatibility issues.
    5. Update in a stable environment: It is recommended to perform the software update in a stable environment with a reliable power source and a stable network connection. Interrupted power or network connectivity during the update process may lead to a failed update or system instability.
    6. Update step-by-step: Follow the recommended update procedure provided by QNAP. This usually involves downloading the update file from the official QNAP website, accessing the NAS administration interface, and applying the update. Make sure to follow each step carefully to avoid any mistakes.
    7. Be patient: Software updates can take some time to complete, especially if there are significant changes or if the update includes multiple components. Avoid interrupting the update process or powering off the NAS prematurely. Allow the update to finish successfully before accessing or using the NAS.
    8. Monitor the update process: During the update, keep an eye on the progress and any error messages that may appear. If you encounter any issues or error messages, refer to the QNAP support resources or contact their technical support for assistance.

    Following these precautions and best practices will help ensure a smooth and successful software update on your QNAP TVS-EC2480U-SAS-RP R2 NAS.

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