How to Prevent Data Loss on NAS Thecus N4510U PRO and Recover Deleted Files: Tips and Tricks

Maintain ⭐ NAS data security with RAID setups and backup strategies to recover deleted files and avoid data loss.

How to Prevent Data Loss on NAS Thecus N4510U PRO and Recover Deleted Files: Tips and Tricks

Thecus N4510U 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 N4510U PRO.

How to Prevent Data Loss on NAS Thecus N4510U PRO and Recover Deleted Files: Tips and Tricks

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 Thecus 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 a NAS Thecus N4510U PRO device's network throughput or bandwidth capacity affect data transfer and potential loss?

The network throughput or bandwidth capacity of a NAS (Network Attached Storage) device like Thecus N4510U PRO can have a significant impact on data transfer and potential loss. Here's how:

  1. Data Transfer Speed: Network throughput determines the speed at which data can be transferred between the NAS device and other network-connected devices. A higher network throughput allows for faster data transfer, reducing the time required to upload or download files. Conversely, a lower throughput will result in slower data transfer speeds, which can be a bottleneck for data-intensive tasks.
  2. Concurrent Users: The network throughput capacity also determines the number of concurrent users that can access and transfer data to/from the NAS device simultaneously. A higher throughput allows for more users to access the NAS without experiencing significant slowdowns or performance issues. If the throughput is limited, multiple users accessing and transferring data concurrently may experience reduced speeds and potential data loss due to timeouts or connection drops.
  3. Streaming and Multimedia: NAS devices are often used for streaming multimedia content, such as videos or music, to various devices on the network. Higher network throughput enables smoother streaming experiences, reducing buffering times and ensuring uninterrupted playback. Insufficient throughput can cause buffering issues, leading to data loss in the form of interrupted or degraded media streams.
  4. Backup and Synchronization: NAS devices are commonly used for data backup and synchronization across multiple devices. A higher network throughput allows for faster backup and synchronization processes, minimizing the time required to transfer data between devices. Inadequate throughput can result in delays or incomplete backups, potentially leading to data loss if backups are not properly performed.
  5. RAID Rebuild and Data Recovery: NAS devices often employ RAID (Redundant Array of Independent Disks) configurations for data redundancy and protection against drive failures. In case of a drive failure, the NAS device needs to rebuild the RAID array by redistributing data across the remaining drives. A higher network throughput can significantly reduce the time required for RAID rebuilds and data recovery. Insufficient throughput can prolong the rebuild process, increasing the risk of data loss if another drive fails during the rebuild.

In summary, the network throughput or bandwidth capacity of a NAS device like Thecus N4510U PRO directly impacts the speed of data transfer, the number of concurrent users it can handle, streaming performance, backup and synchronization efficiency, and RAID rebuild times. Insufficient throughput can lead to slower data transfer speeds, buffering issues, incomplete backups, and prolonged recovery processes, increasing the risk of potential data loss.

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

Although NAS N4510U 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 Thecus N4510U 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 Thecus

How to recover data from a Thecus

N4510U PRO has 4 HDD slots, and it supports the following array types:

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

NAS supports:

  • EXT3;
  • EXT4;
  • XFS;

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 Thecus N4510U 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 N4510U PRO, feel free to leave a comment!
  • Rogers Pitt-Rivers
    Rogers Pitt-Rivers 13.09.2023 13:59 #
    Are there any specific error codes or messages that may indicate the need for data recovery from a NAS Thecus N4510U PRO device?
    • Hetman Software
      Hetman Software 13.09.2023 15:00 #

      There are several error codes or messages that may indicate the need for data recovery from a NAS Thecus N4510U PRO device. Some of them include:

      1. RAID Degraded or Failed: This message indicates that one or more drives in the RAID array have failed or are experiencing issues. It could be due to physical damage, logical corruption, or other factors.
      2. Disk not found or Disk Error: This error message suggests that the NAS is unable to detect one or more hard drives connected to it. It could be due to a faulty connection, drive failure, or other hardware-related problems.
      3. File System Corruption: If the NAS's file system becomes corrupted, it may display error messages indicating issues with accessing or reading data. This can occur due to power outages, improper shutdowns, or software glitches.
      4. Data Inaccessible or Unreadable: This message indicates that the NAS is unable to access or read the data stored on the drives. It could be due to file system corruption, drive failure, or other issues.
      5. SMART Errors: The NAS may display SMART (Self-Monitoring, Analysis, and Reporting Technology) errors if it detects issues with the hard drives' health or performance. These errors can indicate potential drive failures.

      If you encounter any of these error codes or messages, it is advisable to contact a professional data recovery service for assistance. Attempting to recover the data without proper knowledge and tools can lead to further data loss or permanent damage.

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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 Thecus N4510U PRO over regular external hard drives for data storage and backup purposes?

    There are several advantages of using a NAS Thecus N4510U PRO over regular external hard drives for data storage and backup purposes:

    1. Centralized storage: A NAS allows you to centralize all your data in one location, making it easily accessible to multiple devices on your network. This eliminates the need to connect and disconnect external hard drives to different devices.
    2. Data sharing: With a NAS, you can easily share files and folders with other users on your network. This is particularly useful for collaborative work environments where multiple users need access to the same data.
    3. Data protection: NAS devices often come with built-in data protection features such as RAID (Redundant Array of Independent Disks) configurations. RAID provides redundancy by storing data across multiple drives, protecting against data loss in case of a drive failure.
    4. Scalability: NAS devices offer the flexibility to add more storage capacity as your needs grow. You can easily expand the storage capacity by adding additional hard drives to the NAS, without the need to purchase multiple external hard drives.
    5. Remote access: Many NAS devices provide remote access capabilities, allowing you to access your data from anywhere with an internet connection. This is especially beneficial for remote workers or when you need to access your files while away from your home or office.
    6. Data backup: NAS devices often come with built-in backup software that allows you to schedule automatic backups of your data. This ensures that your important files are regularly backed up, providing an additional layer of data protection.
    7. Enhanced data management: NAS devices often come with advanced data management features such as file versioning, snapshots, and data deduplication. These features help in efficient data organization, recovery, and space optimization.
    8. Energy efficiency: NAS devices are designed to be energy-efficient, consuming less power compared to multiple external hard drives. This can result in cost savings over time and reduced environmental impact.

    Overall, a NAS Thecus N4510U PRO offers a more robust and feature-rich solution for data storage and backup compared to regular external hard drives. It provides centralized storage, data sharing, data protection, scalability, remote access, data backup, enhanced data management, and energy efficiency.

  • How does the NAS Thecus N4510U PRO provide better data security and protection compared to regular external hard drives?

    The NAS Thecus N4510U PRO provides better data security and protection compared to regular external hard drives in several ways:

    1. RAID functionality: The N4510U PRO supports various RAID levels, such as RAID 0, 1, 5, 6, and 10. RAID (Redundant Array of Independent Disks) offers data redundancy and fault tolerance, ensuring that even if one or more hard drives fail, your data remains accessible and intact.
    2. User access control: The N4510U PRO allows you to create multiple user accounts with different access permissions. This ensures that only authorized users can access specific files and folders, protecting your data from unauthorized access.
    3. Network encryption: The NAS supports various network encryption protocols like SSL/TLS, ensuring that data transmitted over the network is secure and protected from eavesdropping or interception.
    4. Data backup and synchronization: The N4510U PRO provides built-in backup and synchronization tools, allowing you to automatically back up your data to external drives or other NAS devices. This helps protect your data from accidental deletion, hardware failure, or other data loss scenarios.
    5. Data snapshot and versioning: The NAS supports features like data snapshot and versioning, allowing you to take snapshots of your data at specific points in time or keep multiple versions of files. This enables you to easily recover previous versions of files or restore your data to a specific point in time in case of data corruption or accidental modifications.
    6. Advanced security features: The N4510U PRO offers additional security features like AES 256-bit encryption for data-at-rest, antivirus scanning, firewall protection, and IP blocking. These features help safeguard your data from malware, unauthorized access attempts, and other security threats.

    Overall, the NAS Thecus N4510U PRO provides a comprehensive set of features and functionalities that enhance data security and protection compared to regular external hard drives. It offers redundancy, access control, encryption, backup, and advanced security measures to ensure the safety and integrity of your data.

  • In what ways does the NAS Thecus N4510U PRO offer enhanced accessibility, convenience, and scalability compared to traditional external hard drives?

    The NAS Thecus N4510U PRO offers several advantages over traditional external hard drives in terms of accessibility, convenience, and scalability:

    1. Network Accessibility: The N4510U PRO is a network-attached storage (NAS) device, meaning it connects directly to your network rather than being directly attached to a single computer. This allows multiple users to access the NAS simultaneously from different devices, such as computers, smartphones, or tablets, making it more accessible to a larger number of users.
    2. Centralized Storage: Unlike external hard drives that are typically connected to a single computer, the N4510U PRO provides centralized storage for multiple devices on the network. This allows users to access their files and data from any connected device without the need to physically transfer the hard drive between computers.
    3. Data Backup and Redundancy: The N4510U PRO supports various RAID configurations, which provide data redundancy and protection against drive failure. This ensures that your data is safe and accessible even if one or more hard drives fail. Traditional external hard drives lack such redundancy features.
    4. Scalability: The N4510U PRO offers scalability options, allowing you to easily expand the storage capacity as your needs grow. You can add additional hard drives to the NAS, either by replacing existing drives with larger ones or by adding new drives to available slots. This flexibility is not possible with most traditional external hard drives, which have fixed storage capacities.
    5. Remote Access and Cloud Integration: The N4510U PRO supports remote access, allowing you to access your files and data from anywhere with an internet connection. Additionally, it often provides cloud integration, allowing you to sync and backup your data with popular cloud storage services. These features enhance convenience and accessibility, as you can access and manage your files remotely without physically being near the NAS device.
    6. Advanced Features: NAS devices like the N4510U PRO often offer advanced features such as file sharing, media streaming, FTP server capabilities, and support for various applications and services. These features enhance convenience and accessibility, allowing you to share files with others, stream media to different devices, and utilize additional functionalities not typically available with traditional external hard drives.

    Overall, the NAS Thecus N4510U PRO provides enhanced accessibility, convenience, and scalability compared to traditional external hard drives, making it a more versatile and efficient storage solution for both personal and business use.

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