How to recover data from QNAP REXP-1210U-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 REXP-1210U-RP

QNAP REXP-1210U-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 REXP-1210U-RP.

How to recover data from NAS QNAP REXP-1210U-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.

Can improper shutdown or unclean system reboots lead to data loss on NAS QNAP REXP-1210U-RP devices?

Yes, improper shutdown or unclean system reboots can potentially lead to data loss on NAS QNAP REXP-1210U-RP devices. When a system is not shut down properly, there is a risk of data corruption or incomplete write operations, which can result in data loss or file system errors. It is always recommended to follow the proper shutdown procedures and ensure that all data is safely written and synchronized before powering off or rebooting the device. Additionally, having regular backups in place can help mitigate the risk of data loss in such situations.

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

Although NAS REXP-1210U-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 REXP-1210U-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

REXP-1210U-RP has 12 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 REXP-1210U-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 REXP-1210U-RP, feel free to leave a comment!
  • Hugo Hodgson
    Hugo Hodgson 13.09.2023 18:09 #
    Are there any specific firmware updates or patches recommended for data recovery from NAS QNAP REXP-1210U-RP devices?
    • Hetman Software
      Hetman Software 13.09.2023 18:21 #

      It is always recommended to keep your firmware up to date for optimal performance and security.

      For the QNAP REXP-1210U-RP NAS device, you should regularly check for firmware updates on the QNAP website or through the QNAP NAS management interface.

      To ensure data recovery, it is important to have a backup of your data stored on the NAS device. This way, even if there are any issues with the firmware update or patches, you can restore your data from the backup.

      Additionally, if you are experiencing any specific issues or bugs with your NAS device, you can check the QNAP support website or forums for any recommended firmware updates or patches that address those issues.

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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 is iSCSI and how does it work?

    iSCSI stands for Internet Small Computer System Interface. It is a protocol that allows the transmission of SCSI (Small Computer System Interface) commands over IP networks, enabling the connection of storage devices over a network.

    iSCSI works by encapsulating SCSI commands within IP packets, allowing for the remote connection of storage devices such as hard drives, tape drives, and optical drives. It uses TCP/IP (Transmission Control Protocol/Internet Protocol) for reliable and secure data transmission.

    Here is a simplified explanation of how iSCSI works:

    1. Initiator: The initiator is the client device that wants to access the storage device over the network. It could be a server, workstation, or any device with iSCSI initiator software.
    2. Target: The target is the storage device that contains the data the initiator wants to access. It could be a storage array, disk drive, or any device with iSCSI target software.
    3. Discovery: The initiator discovers available targets on the network by sending discovery packets to a specific IP address or subnet. The target responds with information about its availability and capabilities.
    4. Login: Once the initiator identifies the target, it establishes a connection by sending login requests to the target. The target verifies the initiator's credentials and establishes a session.
    5. Command Execution: The initiator sends SCSI commands to the target over the established session. These commands include read, write, and other storage-related operations.
    6. Data Transfer: The target performs the requested operation and transfers data back to the initiator. This data is encapsulated within IP packets and transmitted over the network.
    7. Logout: When the initiator no longer needs access to the target, it sends a logout request to terminate the session and release the resources.

    iSCSI provides a flexible and cost-effective way to extend storage capabilities over a network, allowing for centralized storage management and easier scalability. It enables devices to communicate as if they were directly connected, even over long distances.

  • What are the benefits of using iSCSI in a network storage environment?

    There are several benefits of using iSCSI in a network storage environment:

    1. Cost-effective: iSCSI allows organizations to use existing Ethernet infrastructure for storage networking, eliminating the need for dedicated Fibre Channel (FC) networks. This reduces the cost of deploying and maintaining separate storage networks.
    2. Scalability: iSCSI supports the use of Ethernet switches, which can be easily scaled to accommodate increased storage needs. This makes it easier to expand storage capacity without significant infrastructure changes.
    3. Flexibility: iSCSI can be used over long distances, allowing for remote storage access. This is particularly useful for organizations with multiple locations or remote workers who need access to centralized storage.
    4. Ease of management: iSCSI leverages the familiar TCP/IP networking protocol, making it easier to administer and manage compared to proprietary storage networking technologies like FC. IT administrators can use existing network management tools and skills to manage iSCSI storage.
    5. Compatibility: iSCSI is compatible with various operating systems and storage devices, allowing for interoperability between different vendors' products. This provides organizations with more flexibility in choosing storage solutions that best meet their needs.
    6. Performance: With advancements in Ethernet technology, iSCSI can achieve high data transfer rates and low latency, making it suitable for demanding storage workloads. Additionally, iSCSI can take advantage of advanced features like jumbo frames and flow control to optimize performance.
    7. Data protection: iSCSI supports standard data protection mechanisms like encryption and authentication, ensuring the security and integrity of data during transmission. This is crucial for organizations that deal with sensitive or confidential information.

    Overall, iSCSI offers a cost-effective, scalable, and flexible storage solution that can be easily managed and provides high performance for a variety of network storage environments.

  • Does the NAS QNAP REXP-1210U-RP support the iSCSI protocol for storage connectivity?

    Yes, the NAS QNAP REXP-1210U-RP supports the iSCSI protocol for storage connectivity.

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