Accessing RAID Disk Files When NAS Level One GNS-4000 is Not Operating: Practical Steps

When the ⭐ NAS is not working, access RAID disk files by connecting them to a PC, configuring RAID, and using recovery software for data recovery.

Accessing RAID Disk Files When NAS Level One GNS-4000 is Not Operating: Practical Steps

Level One GNS-4000 NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from GNS-4000.

Accessing RAID Disk Files When NAS Level One GNS-4000 is Not Operating: Practical Steps

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 Level One 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 NAS Level One GNS-4000 device's CPU or processing power affect data transfer and potential loss?

The CPU or processing power of the NAS Level One GNS-4000 device can affect data transfer and potential loss in several ways:

  1. Processing Speed: The CPU's speed determines how quickly the device can handle data requests and perform calculations. A faster CPU can process data more quickly, resulting in faster data transfer speeds.
  2. Data Encryption: If the NAS device uses encryption algorithms to secure data during transfer, a powerful CPU is required to perform the encryption and decryption processes. A weak CPU may slow down the encryption/decryption process, affecting data transfer speeds.
  3. Network Protocol Processing: The CPU is responsible for handling network protocol processing, such as TCP/IP. If the CPU is underpowered, it may struggle to handle the network traffic efficiently, leading to slower data transfer speeds and potential data loss.
  4. RAID Calculations: If the NAS device uses RAID (Redundant Array of Independent Disks) for data redundancy, the CPU is responsible for performing RAID calculations, such as parity calculations in RAID 5. A slower CPU may take longer to perform these calculations, impacting data transfer speeds.
  5. Data Integrity Checks: The CPU is involved in verifying data integrity during transfer, such as checksum calculations. If the CPU is slow, it may take longer to perform these checks, potentially leading to data loss if errors are not detected in a timely manner.

In summary, a powerful CPU in the NAS Level One GNS-4000 device ensures faster data transfer speeds, efficient network protocol processing, quick encryption/decryption, and timely data integrity checks, reducing the potential for data loss.

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

Although NAS GNS-4000 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 Level One GNS-4000. 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 Level One

How to recover data from a Level One

GNS-4000 has 4 HDD slots, and it supports the following array types:

  • RAID 0;
  • RAID 1;
  • RAID 5;
  • RAID 6;
  • 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 Level One GNS-4000 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 GNS-4000, feel free to leave a comment!
  • Orion Day
    Orion Day 9.09.2023 00:47 #
    Can data recovery from a NAS Level One GNS-4000 device be performed if there are issues with the network router or switch?
    • Hetman Software
      Hetman Software 9.09.2023 02:00 #

      Yes, data recovery from a NAS Level One GNS-4000 device can be performed even if there are issues with the network router or switch. The NAS device itself stores the data on its own internal storage drives, so as long as the drives are functioning properly, the data can be recovered. The network router or switch issues may prevent access to the NAS device over the network, but it should still be possible to connect directly to the NAS device using a computer or other device to perform the data recovery.

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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 necessary steps to connect a printer to the Level One GNS-4000 NAS device?

    To connect a printer to the Level One GNS-4000 NAS device, you can follow these steps:

    1. Ensure that your printer is compatible with the Level One GNS-4000 NAS device. Check the printer's documentation or the Level One website for compatibility information.
    2. Connect the printer to the Level One GNS-4000 NAS device using a USB cable. Plug one end of the USB cable into the printer's USB port and the other end into one of the USB ports on the NAS device.
    3. Power on the printer and the Level One GNS-4000 NAS device.
    4. Access the NAS device's web interface. Open a web browser on a computer connected to the same network as the NAS device and enter the NAS device's IP address in the browser's address bar. Press Enter to access the web interface.
    5. Log in to the NAS device's web interface using your administrator credentials.
    6. Navigate to the "Printer" or "Print Server" section of the web interface. The exact location may vary depending on the firmware version of the NAS device.
    7. In the "Printer" or "Print Server" section, you should find an option to add a printer. Click on it.
    8. The NAS device should detect the connected printer. Select the printer from the list of available printers.
    9. Configure the printer settings as per your requirements. This may include setting the printer name, printer sharing options, default printer settings, etc.
    10. Save the settings and exit the web interface.
    11. Test the printer by sending a print job from a computer on the same network. Ensure that the computer has the necessary printer drivers installed.

    If everything is set up correctly, the printer should now be connected and accessible through the Level One GNS-4000 NAS device.

  • Are there any specific settings or configurations required on the printer or NAS to establish a connection?

    Yes, there are specific settings and configurations required on both the printer and NAS (Network Attached Storage) to establish a connection. Here are some common steps:

    Printer:

    1. Ensure the printer is connected to the same network as the NAS.
    2. Configure the printer's network settings to obtain an IP address automatically (DHCP) or assign a static IP address within the same subnet as the NAS.
    3. Enable file and print sharing on the printer, usually found in the printer settings or administration panel.
    4. Set up any necessary authentication or security settings on the printer, such as username and password.

    NAS:

    1. Connect the NAS to the same network as the printer.
    2. Configure the NAS network settings to obtain an IP address automatically (DHCP) or assign a static IP address within the same subnet as the printer.
    3. Enable file sharing protocols like SMB (Server Message Block) or FTP (File Transfer Protocol) on the NAS.
    4. Set up appropriate user accounts and permissions on the NAS to allow access to the printer.
    5. Ensure the printer driver or software is installed on the NAS if required for direct printing.

    These steps may vary depending on the specific printer and NAS models, so it's recommended to refer to the respective user manuals or documentation for detailed instructions.

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