How to recover data from QNAP TVS-EC1680U-SAS-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-EC1680U-SAS-RP

QNAP TVS-EC1680U-SAS-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-EC1680U-SAS-RP.

How to recover data from NAS QNAP TVS-EC1680U-SAS-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.

How frequently should data be backed up to prevent loss on NAS QNAP TVS-EC1680U-SAS-RP devices?

To prevent data loss on NAS QNAP TVS-EC1680U-SAS-RP devices, it is recommended to back up the data frequently. The frequency of backups depends on the importance of the data and the rate of change in the files.

For critical data that is frequently updated, a daily backup schedule is advisable. This ensures that any changes made to the data throughout the day are backed up regularly, minimizing the risk of data loss.

For less critical data or data that doesn't change frequently, a weekly or monthly backup schedule may be sufficient. However, it's important to consider the potential impact of losing any data and make a decision based on the specific needs and requirements of your organization.

Additionally, it is recommended to follow the 3-2-1 backup strategy, which involves having at least three copies of your data, stored on two different types of media, with one copy stored off-site or in the cloud. This strategy provides an extra layer of protection against data loss.

Ultimately, the frequency of backups should be determined by the specific needs and risk tolerance of your organization, but regular and consistent backups are essential to prevent data loss on NAS devices.

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

Although NAS TVS-EC1680U-SAS-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-EC1680U-SAS-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-EC1680U-SAS-RP has 16 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-EC1680U-SAS-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-EC1680U-SAS-RP, feel free to leave a comment!
  • Mac Greenup
    Mac Greenup 15.09.2023 04:38 #
    Is it possible to recover data from a NAS QNAP TVS-EC1680U-SAS-RP device that has been affected by a power supply or voltage fluctuation issue?
    • Hetman Software
      Hetman Software 15.09.2023 05:59 #

      Yes, it is possible to recover data from a NAS QNAP TVS-EC1680U-SAS-RP device that has been affected by a power supply or voltage fluctuation issue. However, the success of data recovery depends on the extent of the damage caused by the power supply issue.

      Here are a few steps you can take to attempt data recovery:

      1. Power off the NAS: If you haven't already done so, power off the NAS immediately to prevent further damage.
      2. Check the power supply: Ensure that the power supply is functioning properly and providing the correct voltage. If necessary, replace the power supply with a new one.
      3. Check the hard drives: Power off the NAS and remove the hard drives. Inspect them for any physical damage such as burnt components or melted connectors. If you find any damage, consult a professional data recovery service.
      4. Test the hard drives: Connect the hard drives to a different computer using a SATA to USB adapter or an external hard drive enclosure. Check if the drives are recognized by the computer. If they are recognized, attempt to access the data on the drives.
      5. Consult professional data recovery services: If you are unable to access the data on the hard drives or if the drives are not recognized by the computer, it is recommended to consult professional data recovery services. They have specialized tools and expertise to recover data from damaged NAS devices.

      Remember to always have a backup of your important data to avoid data loss in case of such incidents.

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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 different file access levels available on the QNAP TVS-EC1680U-SAS-RP NAS system?

    The QNAP TVS-EC1680U-SAS-RP NAS system provides several file access levels, including:

    1. Local access: Users can access files and folders directly on the NAS system using a connected computer or device within the local network.
    2. Remote access: Users can access files and folders on the NAS system from outside the local network using various remote access methods such as FTP, SFTP, WebDAV, or QNAP's proprietary myQNAPcloud service.
    3. User-based access control: The NAS system supports user accounts and allows administrators to assign different access permissions to each user. This ensures that users only have access to the files and folders they are authorized to access.
    4. Group-based access control: Users can be organized into groups, and access permissions can be assigned to entire groups instead of individual users. This simplifies the management of access control, especially in larger environments with numerous users.
    5. Shared folder access control: Administrators can set specific access permissions for shared folders on the NAS system. This allows fine-grained control over who can read, write, or modify files within each shared folder.
    6. Access control based on IP address: The NAS system can restrict access to specific IP addresses or IP ranges. This provides an additional layer of security by allowing only authorized devices or networks to access the files and folders on the NAS.
    7. Access control based on protocols: Administrators can enable or disable specific file access protocols (e.g., SMB/CIFS, AFP, NFS) to control which protocols are allowed for accessing the NAS system.

    Overall, the QNAP TVS-EC1680U-SAS-RP NAS system offers a comprehensive range of file access levels to ensure secure and controlled access to files and folders stored on the system.

  • How can I configure and manage file access levels on the QNAP TVS-EC1680U-SAS-RP NAS?

    To configure and manage file access levels on the QNAP TVS-EC1680U-SAS-RP NAS, you can follow these steps:

    1. Access the NAS web interface: Open a web browser and enter the IP address of your NAS in the address bar. Login with your admin credentials.
    2. Create user accounts: Go to "Control Panel" > "User" > "User Home" and click on "Create" to add user accounts. Provide a username, password, and assign appropriate access privileges.
    3. Create user groups: Go to "Control Panel" > "User" > "User Group" and click on "Create" to add user groups. Specify a group name and assign users to the group.
    4. Configure shared folders: Go to "Control Panel" > "Shared Folders" and click on "Create" to add shared folders. Provide a folder name, select the desired volume, and set access privileges for individual users or groups.
    5. Set access privileges: In the "Shared Folders" section, select a shared folder and click on the "Privilege Settings" tab. Here, you can define access privileges for different users and groups, such as read-only, read/write, or deny access.
    6. Enable advanced folder permissions: In the "Shared Folders" section, select a shared folder and click on the "Advanced Permissions" tab. Here, you can set advanced folder permissions, including ACL (Access Control List) settings for fine-grained control over access levels.
    7. Enable Windows ACL support: If you want to use Windows ACL permissions, go to "Control Panel" > "Shared Folders" > "Advanced Permissions" > "Enable Windows ACL." This allows you to manage access permissions using Windows-style ACLs.
    8. Set up quota limits: To manage storage usage, you can set quota limits for individual users or groups. Go to "Control Panel" > "Shared Folders" > "Quota" to configure quota settings.
    9. Apply changes: After configuring access levels, click on "Apply" or "Save" to save the settings.

    By following these steps, you can configure and manage file access levels on your QNAP TVS-EC1680U-SAS-RP NAS according to your specific requirements.

  • What are the security implications and best practices for setting file access levels on the QNAP TVS-EC1680U-SAS-RP NAS?

    Setting file access levels on the QNAP TVS-EC1680U-SAS-RP NAS is crucial for maintaining the security and integrity of your data. Here are some security implications and best practices to consider:

    1. Principle of Least Privilege: Follow the principle of least privilege, granting users and applications only the minimum level of access required to perform their tasks. This helps minimize the potential damage caused by compromised accounts.
    2. User Access Control: Create separate user accounts for each individual accessing the NAS, ensuring that each user has a unique username and password. Avoid using default or common credentials.
    3. Group Permissions: Organize users into groups based on their roles and responsibilities. Assign appropriate group permissions to ensure efficient management of file access rights.
    4. Folder-Level Permissions: Set access permissions at the folder level to control who can read, write, or execute files within specific directories. Regularly review and update these permissions as needed.
    5. Network Access Control: Utilize firewall settings to restrict access to the NAS from specific IP addresses or networks. This prevents unauthorized access attempts from external sources.
    6. Two-Factor Authentication (2FA): Enable 2FA for user authentication to add an extra layer of security. This requires users to provide a second form of verification, such as a one-time password or biometric authentication, in addition to their regular credentials.
    7. Regular Firmware Updates: Keep the NAS firmware up to date to ensure that security patches and enhancements are applied promptly. Regularly check for firmware updates provided by QNAP and apply them as recommended.
    8. Data Encryption: Enable encryption for sensitive data stored on the NAS. QNAP provides options for both shared folder encryption and full disk encryption. This protects your data in case of physical theft or unauthorized access.
    9. Regular Backups: Implement a regular backup strategy to protect your data from accidental deletion, hardware failures, or ransomware attacks. Store backups on separate media or off-site to ensure data availability in case of a disaster.
    10. Audit Logs and Monitoring: Enable and regularly review audit logs to track user activities and identify any suspicious behavior. Implement monitoring tools to detect and alert on any unusual access patterns or security incidents.
    11. Disable Unused Services: Disable any unnecessary services or features on the NAS to reduce the attack surface. Only enable the services that are required for your specific needs.
    12. Secure Remote Access: If remote access is required, use secure protocols such as VPN (Virtual Private Network) or SSH (Secure Shell) to establish a secure connection. Avoid exposing the NAS directly to the internet without proper security measures in place.

    By following these best practices, you can enhance the security of your QNAP TVS-EC1680U-SAS-RP NAS and protect your data from unauthorized access or breaches.

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