How to Extract Data from a RAID Disk When NAS Asustor LOCKERSTOR 16R Pro is Unresponsive

If your ⭐ NAS doesn't boot, extract data from RAID disks by connecting them to a PC, configuring RAID settings, and using recovery software for file recovery.

How to Extract Data from a RAID Disk When NAS Asustor LOCKERSTOR 16R Pro is Unresponsive

Asustor LOCKERSTOR 16R Pro 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 16R Pro.

How to Extract Data from a RAID Disk When NAS Asustor LOCKERSTOR 16R Pro is Unresponsive

RAID Recovery™ 2.6
Recover data from damaged RAID arrays inaccessible from a computer.
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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.

How can the number of drives in a NAS Asustor LOCKERSTOR 16R Pro device's RAID array impact data recovery and potential loss?

The number of drives in a NAS Asustor LOCKERSTOR 16R Pro device's RAID array can impact data recovery and potential loss in the following ways:

  1. Redundancy: RAID arrays are designed to provide redundancy and protect against data loss. The more drives you have in the RAID array, the higher the level of redundancy. For example, a RAID 1 array with two drives mirrors the data, so if one drive fails, the other still contains a complete copy. In contrast, a RAID 5 array with three or more drives uses parity to distribute data across the drives, allowing for recovery even if one drive fails.
  2. Fault tolerance: With more drives in the RAID array, there is a higher level of fault tolerance. If a drive fails, the remaining drives can continue to function and the data can be recovered from the redundancy or parity information. However, if there are fewer drives in the array, the failure of a single drive can result in data loss if there is no redundancy or parity to recover from.
  3. Rebuilding time: When a drive fails in a RAID array, the array needs to be rebuilt by redistributing the data across the remaining drives. The more drives there are in the array, the longer it may take to rebuild the array. During this rebuilding process, the array is at risk of another drive failure, which can lead to data loss if there is not enough redundancy or parity.
  4. Capacity and performance: The number of drives in the RAID array also affects the overall capacity and performance of the NAS device. More drives can provide higher storage capacity and potentially better performance due to increased read and write speeds. However, if you have a larger number of drives, the risk of drive failure and potential data loss also increases.

In summary, having more drives in a NAS Asustor LOCKERSTOR 16R Pro device's RAID array generally provides better data protection and recovery options. However, it is important to consider the trade-offs in terms of cost, capacity, performance, and the potential risks associated with multiple drive failures during the rebuilding process.

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

Although NAS LOCKERSTOR 16R Pro 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 16R Pro. 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 16R Pro has 16 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 16R Pro 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

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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 16R Pro, feel free to leave a comment!
  • Theo Aitchison
    Theo Aitchison 11.09.2023 18:56 #
    Can data recovery from a NAS Asustor LOCKERSTOR 16R Pro device be done if the device is experiencing intermittent connectivity issues?
    • Hetman Software
      Hetman Software 11.09.2023 20:00 #

      Yes, data recovery from a NAS Asustor LOCKERSTOR 16R Pro device can still be possible even if the device is experiencing intermittent connectivity issues. However, the process may be more challenging and time-consuming compared to recovering data from a fully functional device.

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

      1. Troubleshoot the connectivity issues: Try to identify the cause of the intermittent connectivity problems and resolve them if possible. This could involve checking network cables, router settings, or updating firmware.
      2. Use data recovery software: If you can establish a stable connection, you can try using data recovery software specifically designed for NAS devices. These tools can scan the device and attempt to recover deleted or lost files. Make sure to follow the instructions provided by the software and avoid modifying or writing any data to the NAS during the recovery process.
      3. Seek professional assistance: If the connectivity issues persist or if the data recovery software is unable to retrieve your files, it is recommended to seek professional assistance from a data recovery service. They have specialized tools and expertise to deal with complex data recovery scenarios and can maximize the chances of successful recovery.

      Remember, it is crucial to avoid further damage to the NAS device and its data during the recovery process. It is advisable to consult with professionals who specialize in data recovery to ensure the best possible outcome.

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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 xaker.ru, 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.

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Questions and answers

  • What are the advantages of using a NAS Asustor LOCKERSTOR 16R Pro compared to regular external hard drives for data storage?

    There are several advantages of using a NAS (Network Attached Storage) like the Asustor LOCKERSTOR 16R Pro compared to regular external hard drives for data storage:

    1. Centralized storage: NAS provides centralized storage, allowing multiple devices to access and share files simultaneously. It eliminates the need for connecting and disconnecting external hard drives between different devices.
    2. Data accessibility: With a NAS, you can access your data from anywhere using an internet connection. It enables remote access, making it convenient to retrieve files or media from outside your home or office.
    3. Data sharing and collaboration: NAS allows easy file sharing and collaboration among multiple users. It offers user management and permission settings, ensuring secure access to specific files or folders for different users or groups.
    4. Data protection: NAS devices often include features like RAID (Redundant Array of Independent Disks) that provide data redundancy and protection against drive failures. In case one drive fails, the data can be recovered from other drives in the array.
    5. Backup and disaster recovery: NAS devices can automate backups of your data, ensuring regular and reliable backups. Some NAS systems also support features like snapshotting, which allows you to restore your data to a specific point in time.
    6. Expandable storage capacity: Unlike regular external hard drives with fixed storage capacities, NAS systems offer scalability. You can start with smaller storage capacities and easily expand it by adding additional hard drives or upgrading existing ones.
    7. Additional features: NAS devices often come with additional features like media streaming, surveillance camera support, cloud synchronization, and app ecosystems. These features enhance the functionality and versatility of the NAS beyond just storage.

    Overall, a NAS like the Asustor LOCKERSTOR 16R Pro provides a more robust, scalable, and feature-rich solution for data storage compared to regular external hard drives.

  • How does the NAS Asustor LOCKERSTOR 16R Pro provide better data security and protection compared to traditional external hard drives?

    The NAS Asustor LOCKERSTOR 16R Pro provides better data security and protection compared to traditional external hard drives in several ways:

    1. RAID Technology: The LOCKERSTOR 16R Pro supports various RAID configurations, such as RAID 0, 1, 5, 6, and 10. This allows for data redundancy and protection against drive failures. In case of a drive failure, the data remains accessible and can be rebuilt onto a new drive without any data loss.
    2. Data Encryption: The LOCKERSTOR 16R Pro supports AES 256-bit encryption, which ensures that data stored on the NAS is encrypted and protected from unauthorized access. This provides an extra layer of security, especially when the NAS is connected to the internet or shared among multiple users.
    3. User Access Control: The LOCKERSTOR 16R Pro offers advanced user access control mechanisms. It allows administrators to create multiple user accounts with different access privileges. This ensures that only authorized users can access specific files or folders, providing better control over data security.
    4. Network Security: The LOCKERSTOR 16R Pro supports various network security protocols like HTTPS, SSL/TLS encryption, and IP blocking. These features protect data during transmission and prevent unauthorized access to the NAS.
    5. Backup and Recovery: The LOCKERSTOR 16R Pro offers comprehensive backup solutions, including local backup, remote backup, and cloud backup. This ensures that data is regularly backed up, reducing the risk of data loss. In case of accidental deletion or hardware failure, data can be easily recovered from the backups.
    6. Scalability and Expandability: The LOCKERSTOR 16R Pro provides scalability options, allowing users to expand storage capacity as needed. It supports additional hard drives and expansion units, ensuring that data can be stored and protected without limitations.

    Overall, the NAS Asustor LOCKERSTOR 16R Pro provides enhanced data security and protection compared to traditional external hard drives by offering features like RAID, encryption, user access control, network security, backup, and scalability.

  • What additional features and functionalities does the NAS Asustor LOCKERSTOR 16R Pro offer that make it a superior choice over regular external hard drives for data management and accessibility?

    The NAS Asustor LOCKERSTOR 16R Pro offers several additional features and functionalities that make it a superior choice over regular external hard drives for data management and accessibility:

    1. Network Attached Storage (NAS): The LOCKERSTOR 16R Pro is a NAS device, which means it can be connected to your local network and accessed by multiple users simultaneously. This allows for easy sharing and collaboration on files and data.
    2. RAID Support: The LOCKERSTOR 16R Pro supports various RAID configurations, such as RAID 0, 1, 5, 6, 10, and more. This provides data redundancy and protection against drive failures, ensuring the safety of your data.
    3. Scalability: It offers the ability to expand storage capacity by adding additional hard drives or using expansion units. This scalability allows for future growth and increased storage needs.
    4. Centralized Data Management: With the LOCKERSTOR 16R Pro, you can centrally manage and organize your data in one place. It provides features like file indexing, metadata tagging, and advanced search capabilities, making it easier to find and access your files quickly.
    5. Access Anywhere: The LOCKERSTOR 16R Pro supports remote access, allowing you to access your files and data from anywhere using a web browser or mobile app. This feature is especially useful for remote workers or when you're on the go.
    6. Data Backup and Sync: It offers various backup and synchronization options, including scheduled backups, cloud backups, and sync with popular cloud storage services like Dropbox, Google Drive, and more. This ensures that your data is always backed up and protected.
    7. Multimedia Streaming: The LOCKERSTOR 16R Pro can act as a media server, allowing you to stream multimedia content like videos, music, and photos to compatible devices such as smart TVs, media players, and mobile devices.
    8. App Ecosystem: It has an extensive app ecosystem, with a wide range of applications available for different purposes like file sharing, media management, surveillance, and more. These apps enhance the functionality and versatility of the device.

    Overall, the NAS Asustor LOCKERSTOR 16R Pro offers advanced features and functionalities that go beyond basic external hard drives, providing better data management, accessibility, and security for both personal and professional use.

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