How to recover data from Asustor LOCKERSTOR 12RD 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 Asustor LOCKERSTOR 12RD

Asustor LOCKERSTOR 12RD NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from LOCKERSTOR 12RD.

How to recover data from NAS Asustor LOCKERSTOR 12RD

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 Asustor also introduce some modifications to this process, and that is why data can be written to hard disk in a wide variety of ways.

Are there any specific network security measures to implement for safeguarding NAS Asustor LOCKERSTOR 12RD devices against data loss?

Yes, there are several network security measures that you can implement to safeguard NAS Asustor LOCKERSTOR 12RD devices against data loss. Here are some important ones:

  1. Use strong passwords: Set strong and unique passwords for all user accounts, including the admin account. Avoid using default or easily guessable passwords.
  2. Enable two-factor authentication (2FA): Implement 2FA to add an extra layer of security. This requires users to provide a second form of authentication, such as a code generated on a mobile device, in addition to their password.
  3. Regularly update firmware: Keep the firmware of your NAS device up to date with the latest security patches and updates. This helps protect against known vulnerabilities.
  4. Disable unnecessary services: Disable any unnecessary services or protocols that are not required for your specific needs. This reduces the attack surface and minimizes the risk of unauthorized access.
  5. Use firewall rules: Configure firewall rules to restrict access to your NAS device from external networks. Only allow necessary ports and protocols to communicate with the device.
  6. Implement network segmentation: Separate your NAS device from other network devices by implementing network segmentation. This prevents unauthorized access to the NAS from other compromised devices on the network.
  7. Regularly backup data: Implement a robust backup strategy to regularly backup your data. This ensures that even if the NAS device is compromised or experiences data loss, you can restore your important files and data.
  8. Encrypt data: Enable encryption for sensitive data stored on the NAS device. This adds an extra layer of protection in case of unauthorized access or physical theft of the device.
  9. Monitor and log activities: Enable logging and monitoring features on the NAS device to keep track of any suspicious activities. Regularly review the logs to detect any potential security breaches.
  10. Educate users: Train and educate users on best practices for network security, including strong password management, avoiding phishing emails, and being cautious while accessing the NAS device remotely.

By implementing these network security measures, you can enhance the protection of your NAS Asustor LOCKERSTOR 12RD devices against data loss and unauthorized access.

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

Although NAS LOCKERSTOR 12RD 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 Asustor LOCKERSTOR 12RD. 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 Asustor

How to recover data from a Asustor

LOCKERSTOR 12RD has 12 HDD slots, and it supports the following array types:

  • RAID 0;
  • RAID 1;
  • RAID 5;
  • RAID 6;
  • RAID 50;
  • RAID 60;
  • RAID 10;
  • JBOD;

NAS supports:

  • Ext2;
  • Ext3;
  • Ext4;

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 Asustor LOCKERSTOR 12RD network-attached storage keeps OS Linux 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 LOCKERSTOR 12RD, feel free to leave a comment!
  • Casey Brambell
    Casey Brambell 11.09.2023 18:54 #
    Is it possible to recover data from a NAS Asustor LOCKERSTOR 12RD device that has been affected by a firmware corruption or update failure?
    • Hetman Software
      Hetman Software 11.09.2023 19:00 #

      Yes, it is possible to recover data from a NAS device that has been affected by firmware corruption or update failure. However, the process may vary depending on the specific circumstances and the severity of the issue.

      Here are a few steps you can try to recover data from a NAS Asustor LOCKERSTOR 12RD device:

      1. Power off the NAS device and disconnect it from the power source.
      2. Remove the hard drives from the NAS.
      3. Connect the hard drives to a computer using a SATA to USB adapter or by installing them directly into the computer.
      4. Use data recovery software such as Recuva, EaseUS Data Recovery Wizard, or Stellar Data Recovery to scan the connected hard drives and recover the lost data. These software tools can often recover data from corrupted or formatted drives.
      5. Once the data has been recovered, you can reformat the hard drives and reinstall them into the NAS device.
      6. Follow the manufacturer's instructions to perform a firmware update on the NAS device. Make sure to use the correct firmware version for your specific model.
      7. After the firmware update is complete, configure the NAS device and restore the recovered data back onto it.

      If the above steps do not work or if you are not comfortable performing the data recovery process yourself, it is recommended to contact a professional data recovery service. They have specialized tools and expertise to recover data from complex situations like firmware corruption or update failures.

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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 steps to set up and configure iTunes support on the Asustor LOCKERSTOR 12RD NAS device?

    To set up and configure iTunes support on the Asustor LOCKERSTOR 12RD NAS device, follow these steps:

    1. Connect your LOCKERSTOR 12RD NAS device to your network and power it on.
    2. Open a web browser on your computer and enter the IP address of your NAS device to access the Asustor Control Center.
    3. Log in to the Control Center using your administrator account credentials.
    4. Once logged in, click on "Services" in the left-hand sidebar.
    5. In the Services menu, click on "iTunes Server" to open the iTunes Server settings.
    6. In the iTunes Server settings, click on the "Enable iTunes Server" checkbox to enable the service.
    7. Set the "Shared Folder" option to specify the folder on your NAS device that you want to share with iTunes. You can create a new shared folder if needed.
    8. Set the "Name" option to provide a name for your iTunes server. This is the name that will appear in the iTunes application on your devices.
    9. Optionally, you can set a password for the iTunes server by entering a value in the "Password" field. This password will be required to access the iTunes server.
    10. Click on the "Apply" button to save your settings.
    11. Once the settings are applied, open iTunes on your computer or iOS device.
    12. In iTunes, go to the "Preferences" menu (Windows: Edit -> Preferences, Mac: iTunes -> Preferences).
    13. In the Preferences window, click on the "Sharing" tab.
    14. Check the box next to "Share my library on my local network" to enable iTunes sharing.
    15. Your LOCKERSTOR 12RD NAS device should appear in the "Shared" section of the iTunes sidebar. Click on it to access the shared content.
    16. If you set a password for the iTunes server, you will be prompted to enter it when accessing the shared content.

    That's it! You have successfully set up and configured iTunes support on your Asustor LOCKERSTOR 12RD NAS device. You can now access your shared content through iTunes on your computer or iOS devices.

  • Can the Asustor LOCKERSTOR 12RD NAS device stream iTunes media to multiple devices simultaneously?

    Yes, the Asustor LOCKERSTOR 12RD NAS device can stream iTunes media to multiple devices simultaneously. It supports DLNA, AirPlay, and Chromecast protocols, allowing you to stream media to various devices such as smart TVs, game consoles, and mobile devices.

  • Does the Asustor LOCKERSTOR 12RD NAS device support automatic synchronization of iTunes libraries and playlists?

    Yes, the Asustor LOCKERSTOR 12RD NAS device supports automatic synchronization of iTunes libraries and playlists. It is compatible with iTunes Server, which allows you to centralize and manage your iTunes library on the NAS device. You can set up automatic synchronization to keep your iTunes library and playlists updated across multiple devices.

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