How to recover data from Qsan XCubeNAS XN7004T 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 Qsan XCubeNAS XN7004T

Qsan XCubeNAS XN7004T NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from XCubeNAS XN7004T.

How to recover data from NAS Qsan XCubeNAS XN7004T

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 Qsan 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 the type of file system used on NAS Qsan XCubeNAS XN7004T devices affect data loss risks?

Yes, the type of file system used on NAS Qsan XCubeNAS XN7004T devices can affect data loss risks. The file system is responsible for organizing and managing the data stored on the NAS device, and different file systems have different features and capabilities that can impact data loss risks.

Some file systems, such as ZFS (Zettabyte File System) or Btrfs (B-tree file system), offer advanced data protection features like data checksumming, data duplication, and snapshot capabilities. These features can help prevent data corruption and provide options for data recovery in case of accidental deletion or hardware failures.

On the other hand, file systems like FAT32 or exFAT may have limited data protection features and may be more prone to data loss or corruption. These file systems may not have built-in mechanisms for data integrity checks or advanced recovery options.

Additionally, the file system's compatibility with different operating systems and devices can also affect data loss risks. If the file system is not compatible with a particular operating system or device, it may result in data inaccessibility or loss.

Therefore, it is important to choose a file system that suits your specific needs and provides the necessary data protection features to minimize the risks of data loss on NAS Qsan XCubeNAS XN7004T devices.

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

Although NAS XCubeNAS XN7004T 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 Qsan XCubeNAS XN7004T. 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 Qsan

How to recover data from a Qsan

XCubeNAS XN7004T has 4 HDD slots, and it supports the following array types:

  • RAID 0;
  • RAID 1;
  • RAID 5;
  • RAID 6;
  • JBOD;

NAS supports:

  • exFAT, VFAT, FAT 12 / 16 / 32;
  • NTFS / ReFS;
  • APFS / HFS+;
  • Ext2 / 3 / 4 / ReiserFS / XFS / UFS / ZFS / Btrfs;
  • VMFS / HikvisionFS;

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 Qsan XCubeNAS XN7004T network-attached storage keeps SANOS 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 XCubeNAS XN7004T, feel free to leave a comment!
  • Ellwood Barleycorn
    Ellwood Barleycorn 6.09.2023 02:51 #
    Can data recovery from a NAS Qsan XCubeNAS XN7004T device be done if the storage disks are not recognized by the device?
    • Hetman Software
      Hetman Software 6.09.2023 04:00 #

      If the storage disks are not recognized by the NAS device, it can be challenging to recover data from a Qsan XCubeNAS XN7004T. However, there are a few steps you can try before concluding that data recovery is not possible:

      1. Check the physical connections: Ensure that all cables connecting the storage disks to the NAS device are properly connected. Sometimes, loose or faulty connections can prevent the disks from being recognized.
      2. Swap the disks: If you have multiple storage disks, try swapping them to identify if the issue lies with a specific disk or the NAS device itself. This can help determine if the problem is related to the disks or the NAS hardware.
      3. Test the disks individually: If possible, connect each disk to a different computer or device to check if they are recognized independently. This can help determine if the issue is specific to the NAS device or if there are problems with the disks.
      4. Seek professional help: If the above steps do not resolve the issue, it is recommended to consult a professional data recovery service. They have the expertise and specialized tools to recover data from faulty or unrecognized storage disks. They might be able to repair the disks or extract the data using advanced techniques.

      Remember, attempting any DIY data recovery methods without proper knowledge and tools can further damage the disks and make data recovery more difficult, so it is advisable to seek professional assistance.

Post comment
Leave a reply
Your email address will not be published. Required fields are marked *

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 key features and capabilities of the Qsan XCubeNAS XN7004T for data backup on a NAS system?

    The Qsan XCubeNAS XN7004T is a NAS system designed for data backup and storage. Some of its key features and capabilities for data backup include:

    1. High Storage Capacity: The XN7004T supports up to four hard drives, allowing for a large storage capacity of up to several terabytes or more, depending on the size of the drives used.
    2. RAID Support: It supports various RAID configurations, including RAID 0, 1, 5, 6, 10, 50, and 60. RAID provides data redundancy and improves data protection by distributing data across multiple drives.
    3. Snapshot Technology: The XN7004T utilizes snapshot technology, which allows for the creation of point-in-time copies of data. Snapshots can be used for quick data recovery in case of accidental deletion or data corruption.
    4. Remote Replication: The NAS system supports remote replication, allowing for data backup and synchronization between multiple NAS devices. This feature ensures that data is securely stored in multiple locations for added protection.
    5. Backup Software Compatibility: The XN7004T is compatible with various backup software solutions, including Qsan's own Qsync utility, which provides easy file synchronization and backup.
    6. Data Deduplication and Compression: The NAS system supports data deduplication and compression, which helps to optimize storage space and reduce backup time by eliminating redundant data.
    7. Data Encryption: The XN7004T supports data encryption to ensure the security and privacy of backup data. Encryption algorithms such as AES-256 are commonly used to protect data during transmission and storage.
    8. Scalability: The XN7004T is designed to be scalable, allowing for easy expansion of storage capacity as needed. Additional drives can be added to the NAS system to accommodate growing backup requirements.
    9. Backup Scheduling: The NAS system supports backup scheduling, allowing users to set up automated backup tasks at specific times or intervals. This feature ensures that backups are performed regularly without manual intervention.
    10. User-friendly Interface: The XN7004T features a user-friendly web-based interface, making it easy to configure and manage backup settings. The interface provides intuitive controls and options for efficient data backup operations.

    Overall, the Qsan XCubeNAS XN7004T offers a range of features and capabilities specifically designed for data backup on a NAS system, providing reliable and secure storage for critical business data.

  • How does the Qsan XCubeNAS XN7004T ensure data integrity and reliability during the backup process?

    The Qsan XCubeNAS XN7004T ensures data integrity and reliability during the backup process through several mechanisms:

    1. RAID Protection: The XCubeNAS XN7004T supports various RAID levels (RAID 0, 1, 5, 6, 10, 50, and 60) which provide data redundancy and protection against drive failures. By distributing data across multiple drives and using parity information, RAID helps to ensure that data remains intact even if a drive fails.
    2. Snapshot Technology: The XCubeNAS XN7004T utilizes snapshot technology to create point-in-time copies of data. Snapshots capture the state of the data at a specific moment, allowing users to easily restore files or folders to a previous state if they are accidentally modified or deleted. This helps to ensure data integrity and provides an additional layer of protection against data loss.
    3. Data Scrubbing: The XCubeNAS XN7004T performs regular data scrubbing, which involves checking and correcting any inconsistencies or errors in the stored data. This process helps to maintain data integrity by identifying and repairing potential issues before they can lead to data corruption or loss.
    4. Data Deduplication and Compression: The XCubeNAS XN7004T supports data deduplication and compression techniques, which help to optimize storage capacity and reduce the amount of data that needs to be backed up. By eliminating duplicate data and compressing the remaining data, the backup process becomes more efficient and reliable.
    5. Error Checking and Correction: The XCubeNAS XN7004T employs various error checking and correction mechanisms, such as cyclic redundancy check (CRC), to detect and correct data errors during the backup process. These mechanisms ensure that data is accurately transferred and stored, reducing the likelihood of data corruption or loss.

    Overall, the combination of RAID protection, snapshot technology, data scrubbing, data deduplication and compression, and error checking and correction mechanisms in the Qsan XCubeNAS XN7004T helps to ensure data integrity and reliability during the backup process.

  • Can the Qsan XCubeNAS XN7004T support various backup methods, such as incremental backups or scheduled backups, to optimize data backup efficiency?

    Yes, the Qsan XCubeNAS XN7004T supports various backup methods to optimize data backup efficiency. It offers features like incremental backups, which only backup the changes made since the last backup, reducing the backup time and storage space required. Additionally, it supports scheduled backups, allowing users to set up automated backup tasks at specific times or intervals. These features help optimize data backup efficiency by reducing the amount of data transferred and the time required for backups.

Hello! This is AI-based Hetman Software virtual assistant, and it will answer any of your questions right away.
Start Chat