How to Extract Data from a RAID Disk When NAS TerraMaster U8-522-9400 Does Not Begin

To extract data from RAID disks when your ⭐ NAS fails to start, connect them to a PC, configure RAID settings, and use recovery software.

How to Extract Data from a RAID Disk When NAS TerraMaster U8-522-9400 Does Not Begin

TerraMaster U8-522-9400 NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from U8-522-9400.

How to Extract Data from a RAID Disk When NAS TerraMaster U8-522-9400 Does Not Begin

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 TerraMaster 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 data fragmentation impact data availability and potential loss on NAS TerraMaster U8-522-9400 devices?

Data fragmentation can impact data availability and potential loss on NAS TerraMaster U8-522-9400 devices in the following ways:

  1. Reduced Performance: Fragmentation occurs when files are stored in non-contiguous blocks on the storage device. This can lead to slower read and write speeds, affecting the overall performance of the NAS device. As a result, accessing and retrieving data may take longer, impacting data availability.
  2. Increased Risk of Data Loss: Fragmentation can increase the risk of data loss. When files are fragmented, it becomes more difficult for the NAS device to locate and retrieve all the necessary fragments to reconstruct the complete file. If any of the fragments are lost or corrupted, it can result in data loss or incomplete files.
  3. Storage Inefficiency: Fragmentation can also lead to storage inefficiency. When files are fragmented, they occupy more space on the storage device than necessary. This can reduce the available storage capacity and result in wasted disk space, limiting the amount of data that can be stored on the NAS device.
  4. Difficulty in Data Recovery: In the event of a data loss or system failure, fragmented data can make data recovery more challenging. Fragmented files may be scattered across different areas of the storage device, making it harder to recover and restore the data using traditional recovery methods.

To mitigate the impact of data fragmentation, it is recommended to regularly defragment the NAS device's storage. Defragmentation rearranges the fragmented files, placing them in contiguous blocks, which improves performance, reduces the risk of data loss, and optimizes storage efficiency. Most NAS systems have built-in defragmentation tools or third-party software can be used for this purpose. Additionally, maintaining sufficient free space on the NAS device and organizing files into logical folders can also help reduce fragmentation.

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

Although NAS U8-522-9400 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 TerraMaster U8-522-9400. 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 TerraMaster

How to recover data from a TerraMaster

U8-522-9400 has 8 HDD slots, and it supports the following array types:

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

NAS supports:

  • Ext2;
  • Ext3;
  • Ext4;
  • Btrfs;

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 TerraMaster U8-522-9400 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 U8-522-9400, feel free to leave a comment!
  • Jay Astley
    Jay Astley 10.09.2023 07:47 #
    Is it possible to recover data from a physically damaged NAS TerraMaster U8-522-9400 device?
    • Hetman Software
      Hetman Software 10.09.2023 08:59 #

      Recovering data from a physically damaged NAS device can be challenging and may require professional assistance. In the case of a physically damaged TerraMaster U8-522-9400 device, it is recommended to contact a professional data recovery service. They have specialized tools and expertise to recover data from damaged storage devices. Attempting to recover the data yourself may further damage the device and decrease the chances of successful 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 NAS TerraMaster U8-522-9400?

    To connect a printer to the NAS TerraMaster U8-522-9400, follow these steps:

    1. Ensure that your printer is compatible with network printing. Check the printer's manual or manufacturer's website for information on network connectivity options.
    2. Connect the printer to your local network. You can do this by either connecting the printer directly to your router using an Ethernet cable or by connecting the printer to a computer on the same network and sharing it.
    3. Access the TerraMaster U8-522-9400 NAS interface. Open a web browser on a computer connected to the same network as the NAS, and enter the IP address of the NAS in the address bar. You can find the IP address by checking the NAS settings or using a network scanning tool.
    4. Log in to the NAS interface using your administrator credentials.
    5. Once logged in, navigate to the "Control Panel" or "Settings" section of the NAS interface.
    6. Look for the "Printers" or "Printer Server" option and click on it.
    7. In the printer settings, select the option to add a new printer or configure an existing printer.
    8. The NAS should automatically detect the printer connected to your network. If it doesn't, you may need to manually enter the printer's IP address or network name.
    9. Follow the on-screen instructions to complete the printer setup. This may involve selecting the appropriate printer driver or configuring printing options.
    10. Once the printer setup is complete, you should be able to print to the connected printer from any device on the same network as the NAS. You may need to install the necessary printer drivers on each device before printing.

    Note: The specific steps may vary slightly depending on the NAS firmware version and printer model. It's always recommended to refer to the NAS and printer documentation for detailed instructions.

  • Are there any specific compatibility requirements or settings that need to be considered when connecting a printer to the TerraMaster U8-522-9400 NAS?

    Yes, there are certain compatibility requirements and settings that need to be considered when connecting a printer to the TerraMaster U8-522-9400 NAS. Here are some important factors to keep in mind:

    1. Printer Compatibility: Ensure that the printer you want to connect is compatible with the TerraMaster NAS. Check the printer's specifications or consult with TerraMaster support to confirm compatibility.
    2. Printer Connectivity: The TerraMaster U8-522-9400 NAS supports USB printers. Ensure that your printer has a USB port or can be connected via USB.
    3. Printer Driver Installation: Install the necessary printer drivers on the TerraMaster NAS. This can usually be done through the NAS's web interface or by following the manufacturer's instructions.
    4. Printer Sharing: Configure printer sharing settings on the TerraMaster NAS to allow other devices on the network to access and use the printer. This typically involves enabling printer sharing and setting permissions.
    5. Network Configuration: Ensure that the TerraMaster NAS and the printer are connected to the same network. Verify that the network settings on both devices are properly configured, including IP addresses, subnet masks, and gateway settings.
    6. Firewall and Security Settings: Check the firewall and security settings on the TerraMaster NAS to ensure that they do not block printer communication. Adjust the settings if necessary to allow printer access.
    7. Printer Management: Familiarize yourself with the printer management options available on the TerraMaster NAS. These may include features such as print job monitoring, printer status notifications, and printer queue management.

    It is recommended to consult the user manual or contact TerraMaster support for specific instructions and assistance in setting up a printer with the TerraMaster U8-522-9400 NAS.

  • Can you provide a detailed guide or tutorial on how to establish a printer connection with the TerraMaster U8-522-9400 NAS?

    To establish a printer connection with the TerraMaster U8-522-9400 NAS, follow these steps:

    1. Ensure that your printer is compatible with network printing. It should have built-in network capabilities or be connected to a print server.
    2. Connect your printer to the same network as the TerraMaster NAS. You can do this either by connecting the printer directly to the router using an Ethernet cable or by connecting it wirelessly to the network.
    3. Access the TerraMaster NAS web interface. Open a web browser and enter the IP address of the NAS in the address bar. If you don't know the IP address, you can find it using the TerraMaster Discovery tool or by checking your router's connected devices list.
    4. Log in to the TerraMaster NAS web interface using your admin credentials.
    5. Once logged in, navigate to the "Control Panel" or "Settings" section of the web interface.
    6. Look for the "Printers" or "Printer Server" option. The location may vary depending on the version of the TerraMaster NAS firmware.
    7. Click on the "Printers" or "Printer Server" option to access the printer settings.
    8. In the printer settings, you should see an option to add a printer or configure the printer server. Click on this option.
    9. The TerraMaster NAS should now scan for available printers on the network. It may take a moment to detect your printer. Once detected, select your printer from the list.
    10. Configure the printer settings as per your requirements. You may need to enter a printer name, description, and other settings specific to your printer model.
    11. Save the printer settings and wait for the TerraMaster NAS to apply the changes.
    12. Once the printer connection is established, you can test it by printing a test page or any document from a computer on the same network.

    Note: The steps provided are general guidelines and may vary slightly depending on the specific firmware version of your TerraMaster NAS. It's recommended to refer to the user manual or documentation provided by TerraMaster for detailed instructions tailored to your specific NAS model.

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