How to recover data from QNAP TVS-EC1680U-SAS-RP R2 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 R2

QNAP TVS-EC1680U-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-EC1680U-SAS-RP R2.

How to recover data from NAS QNAP TVS-EC1680U-SAS-RP R2

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.

What is a NAS QNAP TVS-EC1680U-SAS-RP R2 (Network Attached Storage) device?

The QNAP TVS-EC1680U-SAS-RP R2 is a high-end Network Attached Storage (NAS) device designed for businesses and enterprises. It provides a centralized storage solution for storing, managing, and sharing data across a network.

Key features of the QNAP TVS-EC1680U-SAS-RP R2 include:

  1. High Performance: It is equipped with a powerful Intel Xeon E3 quad-core processor, up to 64GB DDR4 RAM, and supports SAS drives. This ensures fast data processing and high-speed file transfers.
  2. Scalability: The device offers a high storage capacity with 16 drive bays, allowing for flexible expansion as the storage needs of the business grow. It also supports RAID configurations for data redundancy and protection.
  3. Connectivity and Data Transfer: It provides multiple Gigabit Ethernet ports for network connectivity and supports various network protocols. It also has USB 3.0 and SAS ports for connecting external devices and achieving high-speed data transfer.
  4. Advanced Data Protection: The TVS-EC1680U-SAS-RP R2 offers advanced data protection features such as snapshot technology, which allows users to quickly recover files or revert to a previous state in case of accidental deletion or data corruption.
  5. Virtualization Support: It is compatible with virtualization platforms such as VMware, Citrix, and Microsoft Hyper-V, enabling businesses to deploy virtual machines and utilize the NAS as a storage repository for virtual environments.
  6. High Availability and Redundancy: The device supports dual power supplies and redundant fans, ensuring high availability and minimizing the risk of system downtime.
  7. Comprehensive Software Features: QNAP provides a range of software applications and features for data management, backup and recovery, remote access, surveillance, and more. These applications can be easily installed and managed through the QTS operating system.

Overall, the QNAP TVS-EC1680U-SAS-RP R2 is a robust and feature-rich NAS device designed to meet the demanding storage requirements of businesses and enterprises.

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

Although NAS TVS-EC1680U-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-EC1680U-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-EC1680U-SAS-RP R2 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 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-EC1680U-SAS-RP R2, feel free to leave a comment!
  • Roland Bluck
    Roland Bluck 15.09.2023 05:51 #
    Is it possible to recover data from a NAS QNAP TVS-EC1680U-SAS-RP R2 device that has been affected by a file system corruption or partition error?
    • Hetman Software
      Hetman Software 15.09.2023 06:00 #

      Yes, it is possible to recover data from a NAS QNAP TVS-EC1680U-SAS-RP R2 device that has been affected by file system corruption or partition error. However, the success of data recovery depends on the extent of the damage and the actions taken after the corruption or error occurred.

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

      1. Contact QNAP Support: QNAP provides technical support for their devices and can guide you through the recovery process. They may suggest specific tools or methods to recover the data.
      2. Check for available backups: If you have a backup of the data stored on the NAS, you can restore it to a new device or repair the existing device using the backup files.
      3. Use QNAP recovery tools: QNAP provides various recovery tools, such as QNAP External RAID Recovery, QNAP RAID Recovery, or QNAP NAS Data Recovery. These tools can help recover data from a corrupted file system or partition.
      4. Seek professional data recovery services: If the above methods do not work or if the data is critical, you can contact professional data recovery services. These services specialize in recovering data from damaged storage devices and may have advanced techniques and equipment to handle complex cases.

      It is important to note that attempting any data recovery process carries some risks, and it is recommended to consult with experts or follow the instructions provided by QNAP support to minimize the chances of 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 various file access security features offered by the NAS QNAP TVS-EC1680U-SAS-RP R2?

    The NAS QNAP TVS-EC1680U-SAS-RP R2 offers several file access security features, including:

    1. Access Control List (ACL): Allows you to set permissions for individual users or groups, granting or denying access to specific files and folders.
    2. Windows Active Directory (AD) Integration: Enables the NAS to integrate with an existing Windows AD domain, allowing you to manage access permissions using AD user and group accounts.
    3. LDAP Server: Allows you to create an LDAP server on the NAS, providing centralized user account management and authentication.
    4. Shared Folder Encryption: Provides the ability to encrypt shared folders, ensuring that data stored within them is protected even if the hard drives are physically removed.
    5. IP Access Control: Allows you to restrict access to the NAS based on IP addresses, ensuring that only authorized devices can connect to it.
    6. HTTPS and SSL/TLS Encryption: Supports secure connections to the NAS using HTTPS, ensuring that data transmitted between the NAS and client devices is encrypted.
    7. Two-Factor Authentication (2FA): Provides an additional layer of security by requiring users to enter a second form of authentication, such as a verification code or fingerprint, when accessing the NAS.
    8. Antivirus Protection: Includes built-in antivirus software that can scan files and folders for malware, helping to prevent the spread of viruses and other malicious software.
    9. Network Access Protection: Offers various network access protection mechanisms, such as brute-force attack protection, IP blocking, and account protection, to enhance the security of the NAS.

    These features help to ensure that only authorized users can access the files and data stored on the NAS, protecting against unauthorized access and potential data breaches.

  • How does the NAS QNAP TVS-EC1680U-SAS-RP R2 ensure secure file access for multiple users or groups?

    The NAS QNAP TVS-EC1680U-SAS-RP R2 ensures secure file access for multiple users or groups through various mechanisms:

    1. User and Group Management: The NAS provides a comprehensive user and group management system, allowing administrators to create and manage multiple user accounts and groups. Each user can be assigned specific access permissions to shared folders, ensuring that only authorized individuals can access certain files.
    2. Access Control Lists (ACL): The NAS supports ACLs, which enable fine-grained control over file and folder permissions. Administrators can define access rights for individual users or groups, specifying whether they can read, write, or execute certain files or folders.
    3. Shared Folder Permissions: Each shared folder on the NAS can have its own set of permissions, allowing administrators to control access at a granular level. Permissions can be set to read-only or read-write, and specific users or groups can be granted or denied access.
    4. HTTPS and SSL/TLS Encryption: The NAS supports HTTPS for secure web access and SSL/TLS encryption for data transmission, ensuring that files are securely transferred between the NAS and users' devices.
    5. Two-Factor Authentication (2FA): The NAS supports 2FA, adding an extra layer of security to user logins. Users are required to provide a second verification method, such as a unique code generated by a mobile app, in addition to their password.
    6. IP Access Control: Administrators can restrict access to the NAS by specifying IP addresses or ranges that are allowed or denied access. This helps prevent unauthorized access from external networks.
    7. Antivirus and Malware Protection: The NAS comes with built-in antivirus and malware scanning capabilities, which can be scheduled to automatically scan files and folders for any potential threats. This helps protect the system and files from malicious activities.

    Overall, the NAS QNAP TVS-EC1680U-SAS-RP R2 provides a range of security features to ensure secure file access for multiple users or groups, protecting sensitive data from unauthorized access and potential threats.

  • Can you explain the role of encryption and authentication in maintaining file access security on the NAS QNAP TVS-EC1680U-SAS-RP R2?

    Encryption and authentication play crucial roles in maintaining file access security on the NAS QNAP TVS-EC1680U-SAS-RP R2.

    1. Encryption: Encryption is the process of converting data into a form that is unreadable by unauthorized individuals. The QNAP TVS-EC1680U-SAS-RP R2 supports various encryption methods, such as AES-256, to secure files stored on the NAS. When encryption is enabled, all data stored on the NAS is encrypted, ensuring that even if the physical drives are stolen or accessed without authorization, the data remains unreadable. Encryption provides an additional layer of security for sensitive files and protects against unauthorized access.
    2. Authentication: Authentication is the process of verifying the identity of users or devices attempting to access the NAS. The QNAP TVS-EC1680U-SAS-RP R2 offers multiple authentication methods, including username/password, LDAP, Active Directory, and two-factor authentication (2FA). These authentication mechanisms ensure that only authorized users can access the files stored on the NAS. By requiring users to authenticate themselves before accessing files, the NAS prevents unauthorized individuals from gaining access to sensitive information.

    Additionally, the QNAP TVS-EC1680U-SAS-RP R2 provides advanced security features such as IP blocking, which allows administrators to block specific IP addresses or ranges from accessing the NAS, further enhancing file access security.

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